Concrete Cutter Journal - The Drilling and Sawing Association

CONCRETE
CUTTER
Journal of The Drilling and Sawing Association
One Heart One Way
Cover story page 16
SILENT BANK JOB
“RESULT” AT ST GEORGE’S PARK
THE NATIONAL FOOTBALL CENTRE
UNDER THE WATER AND UP IN THE AIR
Vol 8 · Issue 1·2013
WWW.DRILLANDSAW.ORG.UK
GNATUKLtd
Selective Demolition, Diamond Drilling and Sawing Specialists
GNATUK - Delivering Cost Effective Solutions
for Robotic Deconstruction and all aspects of
Concrete Cutting, Diamond Drilling and Sawing
Projects - FULL NATIONWIDE SERVICES
tel 01748 826 046
www.gnatuk.com
CONTENTS
CONCRETE
CUTTER
Journal of The Drilling and Sawing Association
Vol 8 · Issue 1·2013
CONCRETE CUTTER
Published by
The Drilling and Sawing Association
Managing Editor
Martin Jennings
Lamda Publicity Limited,
Odeon House,
146 College Road,
Harrow, Middlesex,
HA1 1BH, UK.
[email protected]
07900 896 148
Design and Production
Robin Giddings
[email protected]
Advertising enquiries
[email protected]
Printed by:
Magazine Printing Company
Thank you to all advertisers and contributors of
information. We welcome editorial contributions and
encourage advertisements, but acceptance is at the
discretion of the Committee of the Association.
If you require REPRINTS of any article, please contact
the DSA Office. Magazines, newspapers and private
individuals are welcome to reproduce articles, in whole
or in part, provided that acknowledgement is made to
Concrete Cutter, no addition or other alteration is made
to the text or illustrations of any article, and no reproduction
is made where the copyright © symbol appears.
Opinions and views expressed in the Journal are not
necessarily those of the Association or the Editor, who
shall be under no liability in connection with any article
published herein.
Official Journal of The Drilling and Sawing Association.
Visit our website at www.drillandsaw.org.uk
or email [email protected]
CONCRETE CUTTER 1·2013 | 1
ASSOCIATION SERVICE
Lectures on Drilling & Sawing
If you are an architect, consulting engineer, contractor or public utility that requires more information on
the benefi ts of specialist diamond cutting and allied techniques, we can organise a talk at your premises.
The DSA can provide an informative session that may be of interest to both your staff and to clients.
This presentation covers the following topics:
Illustrations of the various cutting techniques and their applications
The advantages of drilling and sawing techniques compared to more traditional methods
The DSA Members commitment to a professional…
The importance of trained, competent operators with skills cards
Variety of case studies undertaken by DSA members
Contact Joel Vinsant for further information on 0844 879 3452 or email [email protected]
The DSA Board
Joel Vinsant (Secretary)
Peter White (President)
Graham Fawcett (Chairman)
Colin Walker
Dave Swanwick
Finlay Crocker
Jerry Hare
Jim Weaver
Julie White
Mike Hetherington
Paul Bancroft
Shayne Major
2 | CONCRETE CUTTER 1·2013
D-Drill (Master Drillers) Ltd
Diacutt Concrete Drilling Services
John F Hunt Demolition Ltd
East Midlands Diamond Drilling
Core Cut Ltd
J Hare Diamond Drilling Ltd
ICS Blount Europe
D-Drill (Master Drillers) Ltd
Tyrolit (UK) Ltd
Access Drilling Services Ltd
Major Diamond Supplies Ltd
020 8540 0300
01375 366748
0115 967 9000
01506 854710
01462 433199
07817 735419
02476 612858
01788 823738
01663 743201
01604 767600
Great names in
diamond drilling,
sawing and controlled
demolition...
EAST MIDLANDS DIAMOND DRILLING
UNIVERSAL
DIAMOND DRILLING
emdd-universal.com
Tel: 0115 967 9000
• NG5 9JN
Churchfields House • 1 Lockwood Close • Top Valley • Nottingham
CONCRETE CUTTER 1·2013 | 3
SECRETARY’S REPORT
A
Joel Vinsant
DSA Secretary
4 | CONCRETE CUTTER 1·2013
nother 12 months has flown by and
the Association has endeavoured
to keep to its mission statement of sharing
best practice and enhancing the drilling and
sawing industry on a highly professional
image. This has been achieved on many
fronts: the apprenticeship scheme for
operatives has increased in numbers
enrolled and we have introduced a Scottish
location. The new supervisor’s program
that started this year has again showed
our commitment to providing a qualified
workforce. With the latest UKCG Health
& Safety training directive we have been
proactive in spreading its message of
the need for a qualified workforce.
With substantial financial and practical
support from the National Specialist Team
at Construction Skills, the DSA has been
instrumental in the introduction of funds
for various projects such as the supervisors
program, the robotic testers and training
courses and the production of six films
demonstrating our equipment and
services within the construction sector.
With the success of these programs the
Association has purchased a variety of
equipment or accepted donations to
support the training. All these schemes
are seen as a major step forward in the
construction industry where there must
be an increasing emphasis on proper
vocational training in the specialist trades.
The association has recently been
assisting the HSE with their COSHH
Essential documents coming out this
year. These documents will give clear
understanding to Health & Safety
issues raised on-site such as when
dust protection is required.
SECRETARY’S REPORT
We have also been involved with
the construction plant certification
scheme in the production of Robotic
machine testing, which is due early this
year. The DSA has trained five testers
to assist its members in complying
with this new CPCS category.
We have also increased our marketing
budget to promote our members and
improved our website and position within
the hit list search. The DSA logo has
become a registered trademark, which
can only be used by its members, another
commitment by the Association to stop
any false usage. We have had situations in
the past where companies have resigned
from DSA membership but have continued
to market themselves as members, including
use of our logo. This can now be dealt
with through the courts if necessary.
In addition to increasing our
marketing efforts, we have attended
various meetings with high ranking
decision makers within the main
contractors in order to promote our
professionalism, services and commitment
to quality workmanship. Several of these
contractors have recognised our benefi ts
and have insisted on membership to a
trade association. The success of this
action has given us encouragement to
continue to set aside finance or time
to have provider status with all major
contractors in the construction industry.
We would also like to take
this time to remind you of the
benefi ts the NSCC offer you as
members, such as free help lines on
employment, legal and contractual,
business and tax. They also provide
us with representation on a range of
organisations in the construction such
as Cskills, CSCS, CPCS and JCT.
The Association provides a code
of safe working practices, in which
the main contractors have shown
great interest. We also have a range
of policies and day rate schedules to
assist members and we disseminate
information amongst members including
newsletters and safety bulletins.
The committee is made up of
contractors and suppliers from a range
of different size organisations to
encourage varying views on items
discussed in meetings held regularly
throughout the year.
The DSA is here to promote concrete
cutting techniques and to provide a range
of practical services to our members.
CONCRETE CUTTER 1·2013 | 5
CASE HISTORIES
CHAIRMAN’S MESSAGE
Chairman
goes back
to school!
I
t may seem strange but after running my own diamond drilling business for 31 years the
need arose to return to the classroom. I needed a certificate to prove I was capable and
suitable to be on site supervising our operatives but I was also interested to see how our
courses run. What is their value, how good is the course and does it work for our supervisors?
I found the course content to be good, well structured and applicable to our needs. The
supervisors were actually enjoying it and from a starting point of, “I suppose I have to
go as they have booked me on it,“ were fully involved in the process and made a very
positive contribution. Even the lecturer enjoyed it once he overcame the initial shock at
the level of swearing. In fact, it seemed to enfranchise him and the level of expression
was endless from both parties. Well done the drillers.
They shared ideas and formed a mutual respect. Will their companies listen and help
them to use the training when they return? I hope so – and I think they will. The
effectiveness of the courses will depend on what is put into practice in their daily work.
The experience for your Chairman was enlightening. Having tried not to make any
serious mistakes when answering questions and lose all credibility, I had to concede I
was human and really did not know everything. I also have to concede that the guys
out there on site had a more practical approach than me and knew more than I did in
certain areas – not quite in all areas though!
Well done the DSA for make this Continuing Professional Development available. The
diamond drilling industry is moving forward with increasing professional standards. CPD
works and we can all learn.
We all envisage a tough year. The higher our standards are, the better the chance we
have to make the most of our opportunities.
p6
Chairman’s
message
AWAITING
INPUT
Graham Fawcett
DSA Chairman
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6 | CONCRETE CUTTER 1·2013
Our Track Record...
SILVERSTONE
ROCKINGHAM
BRANDS HATCH
OULTON PARK
CADWELL PARK
SNETTERTON
LOTUS TEST TRACK
15,563 metres
12,388 metres
306 metres
48 metres
136 metres
1,973 metres
9,654 metres
During the last three years, many of Britain’s race tracks have
been modified to improve safety and bring more pace
and excitement to motor racing.
We cut over 40,000 metres of asphalt and concrete
at these internationally renowned tracks.
EAST MIDLANDS DIAMOND DRILLING
UNIVERSAL
DIAMOND DRILLING
emdd-universal.com Telephone 0115
9679000
CONCRETE
CUTTER 1·2013 | 7
EVENTS
The UK Concrete Show
bauma
The UK Concrete Show 2013, will take place
at the Birmingham National Exhibition Centre
(NEC) between February 27 and 28. It has
been moved to the NEC following having
been previously held at the Ricoh Centre in
Coventry for the past two years.
bauma, the International Trade Fair for
Construction Machinery, Building Material
Machines, Mining Machines, Construction
Vehicles and Construction Equipment, takes place
from 15 to 21 April 2013 at the trade fair grounds
in Munich. The last bauma, in 2010, attracted
3,256 exhibitors from 53 countries, and over
420,000 visitors from more than 200 nations.
Claimed by its organisers to be Europe’s largest
specialist concrete industry event, this year’s
show is already 30% up on exhibitor numbers
over the 2012 show and is set to confirm its
status in the top three in the world.
With more than 200 exhibitors expected and
an increase of show space of over 60% , the
show is celebrating its move to the NEC by
fielding four seminar theatres.
The show has also launched its own
smartphone app that is available for download
free for owners of iPhones and Android
system phones. There is also a desktop version
that automatically updates the smartphone app
and vice-versa.
This new technology puts the show “in the
pocket” of visitors and exhibitors alike – a list
of exhibitors searchable by product, exhibitor
profiles, seminar listings, timing and details
of speakers and, nearer the show, full blown
networking to allow visitors to request timed
show appointments with exhibitors and an
interactive floor plan that will not only show
you where you are in the hall but your route
to your next appointment.
The DSA is a sponsor of the show and –
together with many supplier DSA members
– will have a stand there, C41. The annual
general meeting of the DSA will also be held at
the NEC during the show on the 27 February.
Visit the DSA website (www.drillandsaw.org)
for more details.
www.concreteshow.co.uk
bauma is the world’s largest and probably most important trade fair for the building
industry. The trade fair, which was established over 50 years ago, presents a
comprehensive international product range in the area of construction machinery,
construction equipment and vehicles and mining machines.
www.bauma.com
IACDS events
In 2013, the International
Association of Concrete
Drillers and Sawers (IACDS)
will be present at bauma,
gathering representatives of
the sawing and drilling industry
together in Munich, Germany,
for a series of meetings,
seminars and social events.
Technical seminar
As was the case during bauma 2010, IACDS will host a technical seminar during
the trade show with presentations on several topics related to the industry. This
follows on from the overwhelming success of the 2010 seminar and will take place
on Friday, April 19, 2013, between 13.00 h and 16.30 h in Conference Room B11.
Sponsored by Hilti, Husqvarna, Pentruder and Tyrolit, experts from these companies
plus other leading figures within the industry will introduce new fields of application
and comment on the latest advanced technologies and techniques.
The seminar is intended for the concrete drilling and sawing industry, for architects,
engineers, planners, general building contractors and builder-owners. Attendees
will hear about the latest developments and newest technologies in the concrete
drilling and sawing industry. The seminar is free of charge.
Each of the 8 presentations is scheduled to last 20 minutes and will be given
simultaneously in English and German. 10 minutes will be reserved for audience
questions and comments.
Diamond Award
At the conclusion of the seminar, the IACDS will present the Diamond Award
2013 to the three best entries. This special award for outstanding achievements
in the area of concrete sawing and drilling is based the four criteria of planning
and complexity, innovation, degree of difficulty and quality requirements.
The award was first held at BeBoSa 2000, followed by BeBoSa 2002, Bauma 2004
and 2007 and World of Concrete 2009 and 2011. Previous winning entries for the
Diamond Award can be viewed on the IACDS website.
On completion of the presentation ceremony, the IACDS will host a networking
session with contractors from all over the world. Just a couple of days later on
Monday, April 22nd, the IACDS will hold its annual meeting in a Munich hotel
near to bauma.
All these events provide a great opportunity for members of the sawing and
drilling community to meet and share knowledge within this specialised industry
and the IACDS offers a very warm welcome to all who wish to attend.
www.iacds.org
8 | CONCRETE CUTTER 1·2013
CASE HISTORIES
Members know best
The Drilling & Sawing Association
represents the majority of the specialist
contractors involved in the professional
diamond drilling and sawing industry.
The members – both contractors and
suppliers – have wide ranging experience
and expertise with diamond tools and
technology. Given below are two examples
of the contribution that DSA members
are making to the civil engineering and
construction industries.
DSA member provides diamond
grinding expertise in sprayed
concrete tunnel fixings
A sprayed concrete tunnel contractor
was having problems installing fixings. The
uneven and softer surface of the concrete
stopped the fixing bolts from staying torqued
to the desired level. A special concrete face
grinding tool was developed which was then
used to grind away the uneven surface to
give a hard smooth, ground finish to the
concrete against which the fixings could
be torqued up properly and the problem
was solved.
Diamond coring trailers drill
accurate holes in runways
for light installations
The specialist area of runway light installation
requires expertise in both the supply of
equipment such as diamond coring trailers
and floor saw blades and core bits and the
experience and skill of DSA contractors.
They use this equipment to accurately
create the desired openings in runway
surfaces needed for the installation of
runway lights and associated cabling.
Grinding tool created a hard
smooth-ground finish to the concrete
Contact
Shayne Major at
Major Diamond Supplies Ltd
[email protected]
www.majordiamondsupplies.co.uk
Tel: 01604767600 / 07831567765
Diamond coring trailer with
hydraulic feed and trailer movers
p9
Tyrolit 1/2 page ad
AWAITING INPUT
CONCRETE CUTTER 1·2013 | 9
CASE HISTORIES
Silent
bank job
The conversion of a property
in the centre of London into a
residential property involved the
careful removal of the concrete
basement vault. The fact that
it was a Grade I listed building
imposed many restrictions
on the method of removal
and diamond sawing and
drilling proved to be the only
acceptable way of completing
the job on time and to the full
satisfaction of the client.
A track saw was used to cut the 350 mm
thick walls into 1 m square sections
10 | CONCRETE CUTTER 1·2013
It is quite common nowadays for many of
the older buildings in the major cities in the
UK to be renovated and refurbished for
private residential use. A recent example
was the conversion of a Grade I listed
building in the centre of London in which
was housed a former Bank of England
holding vault. This posed particular
constraints on the work, especially when it
came to the deconstruction and removal
of the heavily reinforced concrete bank
vault within the basement.
The walls and roof of the building were
built during the 16th and 17th centuries
and the concrete walls and ceilings of the
vault were added much later and were
tied in to the existing structure in the
majority of areas. The structural engineer
in charge of the project insisted that all
work carried out on the building should be
non-percussive in order to preserve the
structural integrity of the original building
– this applied even to fixing holes. The only
method that was approved was diamond
cutting since this gives the advantages
of minimum vibration and noise and
also reduces dust and debris. Specialist
diamond drilling and sawing company and
DSA member Gnat UK were called in to
carry out the work. Gnat has been in the
diamond drilling and cutting trade for over
20 years and own one of the largest fleets
of robotic machines in the UK including
3 of the latest Husqvarna machines.
Gnat were given 6 weeks to complete the
job and they used a combination of track
sawing and stitch drilling to remove the
walls, floor and ceiling. The walls and ceilings
were 350 mm thick and the floor was nearer
700 mm thick. All were heavily reinforced,
especially the floor which had in fact been
designed
drilling!
desi
de
sign
gned
d tto
o resist
resiistt diamond
diamond
dd
rillllin
ri
ing!
g!
Close up of cut face showing
large diameter rebar
CASE HISTORIES
Blocks approximately 1 m square were
cut out and removed using a 3 phase
electrically powered Brokk 90 remote
controlled robotic machine modified for
lifting. They were transported away to
another holding area, using the Brokk,
where they were drilled and hydraulically
burst into manageable sized sections to
assist removal from the tight confines of the
basement area. A total of just under 150 m3
of concrete was removed in this way.
Hilti machines were used for the sawing
and drilling – LP 32 track saws and DD 500
drill rigs. These provided the high power
needed for an arduous task such as this.
A number of suppliers were used for the
consumables but in general Hertfordshire
Diamond provided the 900 mm diameter
saw blades and Golz the 107 mm diameter
drill bits.
The job was completed successfully with
2 days to spare and that included a hold
up following the discovery of asbestos
on site. Gnat’s operatives are trained in
asbestos awareness and they alerted the
main contractor when they came across
some suspect thermoplastic tiling. Work
was suspended for a week for this to be
dealt with by a specialist company.
The main structure was carefully
monitored throughout the work and no
movement or damage was caused and the
occupant of the office on the other side of
the party wall, an ex Prime Minister, was
blissfully unaware of what was occurring
only a few metres away.
Mike Hill, Gnat UK’s Project Director,
has been invited to a meeting with the
American client who was “absolutely
delighted that the works had gone so
well,” to discuss the next phase of works
due to begin later this year.
The concrete was drilled and
burst before carting away
Contact
Gnat UK Ltd
Unit 5 Jackson Court, Olympic Way,
Gallowfields, Richmond, North
Yorkshire, DL10 4FD.
Tel: 01748 826046
www.gnatuk.com
Nationwide Coverage
GNAT UK Limited
Concrete Cutting / Diamond Drilling & Sawing
plus all aspects of Robotic Demolition
t. 01748 826 046 e. [email protected] w. www.gnatuk.com
CONCRETE CUTTER 1·2013 | 11
CASE HISTORIES
“Result” at St George’s Park,
The National Football Centre
2012 was a golden year for sport in this country.
Hosting the Olympics was the culmination of
a dream held out for a generation. The nation
demonstrated itself as a sporting entity, equal
to any other in the world.
Similarly the nation’s construction and engineering
skills were demonstrated across the globe, through
a variety of Olympic projects.
Completed in July 2012 alongside many Olympic
facilities and setting the scene for the future of the
nation’s national sport, was another project, The
National Football Centre at St George’s Park.
On a 330 acre greenfield site in the heart of England
in the National Forest, Bowmer & Kirkland Ltd
set out to construct a £105m centre of excellence
comprising 12 full size training pitches (five with
under pitch heating), medical and science facilities,
two Hilton hotels and pictured below, one of the
largest indoor pitches in the world, a full size replica
of the pitch at Wembley Stadium, along with world
class corporate facilities.
The project provides a centre for training for each of the 24
English football teams from Under 16 level upwards to the full
international squad. It also provides a centre for training referees
and coaches and teams from England and across the world.
respond and perform on a rapid moving project of such
complexity, that was completed on time and on budget.
In the words of Julie Harrington, Managing Director of SGP,
“The builders have done a fantastic job to complete
such an iconic building in such a short space of time.”
Being a long standing sub contractor to Bowmer & Kirkland Ltd,
EMDD-Universal Diamond Drilling Ltd were thrilled and proud
to be invited to work on this project. They were involved from
the early stages of site preparation through to completion prior to
the opening by the Duke and Duchess of Cambridge in July 2012.
This was echoed by her Chairman, David Sheepshanks, who
said of the project, “To think all of this has been built and
achieved in 72 weeks is nothing short of remarkable …
this is the future. This is where we will pursue excellence
for English football.”
The job demonstrated not only the full range of EMDD-Universal
Diamond Drilling Ltd’s technical skills, but also their ability to
Article by Tom Gould and Trevor Vickers
of EMDD-Universal Diamond Drilling Ltd.
Contacts
EMDD-Universal Diamond Drilling Ltd
Churchfields House,
1 Lockwood Close,
Top Valley,
Nottingham,
NG5 9JN.
Tel: 0115 967 9000
emdd-universal.com
Main Contractor:
Bowmer & Kirkland Ltd
High Edge Court,
Heage, Belper,
Derbyshire,
DE56 2BW.
12 | CONCRETE CUTTER 1·2013
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CONCRETE CUTTER 1·2013 | 13
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CASE HISTORIES
Under
the water
and Up
in the air
Two recent jobs undertaken by diamond drilling
and sawing company D-Drill demonstrate the
great variety of specialist skills and flexibility
required to be successful in today’s industry.
There are not many jobs that could be described as being literally
at opposite ends of the sawing and drilling spectrum, but that was
certainly the case with two contracts carried out by D-Drill: the
first involved cutting out concrete in an aquarium below a water
tank containing live sharks, the second called for the drilling of
anchorage holes in a chimney at heights of up to 300 feet.
which is widely used in the USA and is becoming more and more
popular in the UK.
Shark tank
D-Drill’s South West office in Plympton, Devon was called in to
help create a new viewing area at Plymouth’s National Marine
Aquarium. The company had to cut out an eight-metre block wall
beneath a tank containing Sand Tiger Sharks, five Nurse Sharks
and ten Southern Stingrays. The contract came with a once-in-alifetime warning: ‘Don’t disturb the sharks’!
“Sharks, we were told, could become very spooked by loud noise,
and particularly by vibration, so our priority was to carry out the
work without distressing them. Nobody wants to upset a shark –
even if it’s inside a tank!
In ordinary circumstances, drills or powerful concrete breakers
would have been employed to cut through the wall but, because
of the sensitive nature of the creatures above, the decision was
taken to use a quiet, vibration-free method of chain-sawing
Ed Taylor, the manager of D-Drill’s South West office, said: “We
would have usually used a drill or breaker to remove the wall but,
because we had been asked not to disturb the sharks and other
animals in the tank, we looked for the best possible method.
D-Drill were provided with a hydraulic power pack and new
hydraulic chainsaw by ICS that cut down on noise and vibration.
The power pack was located outside the building to keep the
noise to a minimum (approximately 101 dB). The hoses were ran
out of the fire escape door to a cordoned off location and the
whole area was secured to stop any unauthorized people coming
into contact with our task area.
The whole job from start to finish took approximately
two days including preparation and clean up. It involved
chain sawing a block wall 8 m long x 440 mm deep into
sections of 500 mm to be removed carefully and quietly
from the building using a parcel truck. Each vertical cut
took approximately 10 minutes.
“The operation was a complete success and proved that
it pays to call in a specialist when this type of work is
needed,” said Ed Taylor. “A nice coincidence was that our
driller, Dave Lawes, used to volunteer at the Aquarium
before he joined us as an apprentice, so he knew the place
inside out. I am delighted to say none of our operatives
was harmed or eaten by sharks during the operation!”
14 | CONCRETE CUTTER 1·2013
CASE HISTORIES
Chimney stack
At the other end of the country, D-Drill’s Northern office based
in Sheffield was asked to do something completely different.
On the face of it the job request sounded like nothing out of
the ordinary: the drilling of a series of 151 mm diameter holes,
300 mm deep using specialist equipment. The difference was
that the holes were to be drilled at heights of up to 300 feet!
Acquisitions and expansion
The success of these two jobs reflects the good work carried
out by D-Drill in 2012, a year that saw the company invest over
£1 million in acquisitions and expansion.
The job was being carried out on behalf of the large multinational
Tata Steel, in Scunthorpe and the holes were to be drilled at
several stages up a chimney stack to allow fabricated steel bands
to be fixed to it with steel locating pins.
D-Drill completed a deal to purchase Highway Systems located
in the north west of England, which provides a cracking and
seating solution for repair and resurfacing of concrete roads.
It also bought a site in Wigan to expand its operations in the
north, and increased staffing levels across all its UK offices. D-Drill
also launched a new fi re-stopping service on the back of its
latest investments.
It meant specialist training had to be given to the two D-Drill
operatives being employed to carry out the work in order to get
them used to heights and skilled in using safety harnesses. They
were lifted via a man-riding basket and suspended from a crane
and drilled the holes over the course of several visits.
Julie White, managing director of D-Drill, said: “We are investing
in the future because we believe that this is the only way to grow
in the current economic climate. That means expanding the
services you offer, hiring the right people and giving them all the
necessary training to make them experts in their field.
Mick Brown, D-Drill’s Sheffield manager, said: “The work was not
out of the ordinary – apart from the fact it was being done at
300 feet above the ground.
“We have done all of that and will continue to do so because we
want to increase our market share and provide the same high
levels of service to our clients.”
“We were asked to get involved with this work at the planning stage
and we were delighted that our knowledge, skill and expertise
were utilised by one of the world’s best known companies.
D-Drill also became the first company in its field to be handed
a platinum award in the Construction Standards Certification
Scheme (CSCS) and is one of only 1,400 in the entire construction
industry in the UK to have it.
“Of course, it wasn’t just down to skill. Our guys had to have the
stomach for heights too and they said from the start that it would
be no problem.
“As a company, we do not leave anything to chance so they
undertook specialist training to work at heights and there were
also rescue teams on hand with abseil equipment should anything
go wrong when they were carrying out the drilling. The job also
had to be postponed on a couple of occasions due to the forecast
of high winds because safety was of prime importance.”
He added: “Such was the success of this stage of the work, Tata
have now called us back in to discuss further work for them.”
The award highlights a commitment towards high standards
and competency within all areas of the construction industry.
More than 90% of D-Drill’s workforce is now registered under
the scheme.
Contacts
D-Drill (Master Drillers) Ltd
Shilton Ind Est, Bulkington Road, Shilton, Coventry, CV7 9QL.
Tel: 02476 612858 www.d-drill.co.uk
CONCRETE CUTTER 1·2013 | 15
CASE HISTORIES
One Heart
One Way
Built in the mid 1980’s The Crown Shopping Centre in
Stourbridge is currently undergoing a major £50m refurbishment.
Set in the floor slab of the main entrance was a beautiful
mosaic depicting the coat of arms of Stourbridge and its
heraldic motto “One Heart, One Way”
In the early stages of the project the main contractor, Bowmer &
Kirkland Ltd was instructed by the client to remove the delicate
tiled mosaic carefully for relocation to the new build.
EMDD-Universal Diamond Drilling Ltd, a sub contractor to
Bowmer & Kirkland Ltd for over 30 years, was called in to give
advice on the safest way to release the mosaic.
A preliminary site visit to drill test cores showed that the mosaic
was inlaid in a 75 mm screed over a 200 mm thick suspended slab.
When viewed from below, it could be seen that the mosaic was
positioned directly above two intersecting beams with no clear
interface between them and the mosaic bearing slab. It became
clear that to remove the mosaic without damage, it needed to
remain attached to the structural slab.
Faced with the difficult task of separating the slab from the beams,
EMDD-Universal Diamond Drilling Ltd devised a method of
extracting the mosaic using a combination of stitch drilling, wire
sawing and floor sawing.
The first process involved diamond stitch drilling a series of
overlapping holes through the floor slab to expose the tops of the
beams and to provide access for the wire sawing process.
Stage two involved carrying out a horizontal wire saw cut to
separate the reinforced concrete slab from the structural beams.
As the basement was 6 m below it was decided that the safest
option was to secure the wire saw to the top of the slab and
utilise a series of pulleys attached to the underside of the slab and
structural beams to guide the wire during the cutting process.
Dimensions of the slab 227 cm long x 218 cm wide
Dimensions of the mosaic 170 cm long x 130 cm wide
Approximate weight 3 Tonnes
16 | CONCRETE CUTTER 1·2013
CASE HISTORIES
As the controls of the wire saw would be on top of the slab the
operative would be in effect working blind, therefore the pulleys
had to be positioned millimetre perfect to ensure a smooth
cutting process.
Throughout the cutting process a technician remained beneath
the slab, at a safe distance, to observe the cutting, keeping in
contact with the operator by use of two way radios.
Once the section of slab had been released from the structural
beam, the next stage of the operation involved releasing and
lifting the mosaic and floor slab from the surrounding area.
To separate the mosaic from the surrounding floor slab a
perimeter saw cut was required through the slab beyond the
perimeter of the mosaic. Prior to the saw cutting, four mechanical
lifting bolts were inserted and two mobile gantries with electric
hoists were used to take the weight.
Following the perimeter separation cut, the released section
of slab containing the mosaic was then carefully lifted from its
location and placed aside.
Reported by Max Ulanowsky and Trevor Vickers
of EMDD-Universal Diamond Drilling Ltd.
Contacts
EMDD-Universal Diamond Drilling Ltd
Churchfields House, 1 Lockwood Close,
Top Valley, Nottingham, NG5 9JN.
Tel: 0115 967 9000
emdd-universal.com
Main Contractor:
Bowmer & Kirkland Ltd
High Edge Court, Heage,
Belper, Derbyshire, DE56 2BW,
CONCRETE CUTTER 1·2013 | 17
MEMBERS DIRECTORY
WALES
CONTRACTORS
IRELAND
Supple Cutting Services Ltd
Redfield
Dromroe
Causeway
Co. Kerry
Ireland
[email protected]
www.concreteremoval.ie
Tel: 00 353 66 7148828
Fax: 00 353 66 714 8672
SCOTLAND
Core Cut Ltd
Bankhead
Greendykes Road
Broxburn
West Lothian
EH52 6PP
[email protected]
www.corecut.co.uk
Tel: 01506 854710
Fax: 01506 853068
Core Drilling Specialists Ltd
Unit 3, Inchcross Industrial Estate
Bathgate
Scotland
EH48 2HR
[email protected]
www.coredrilling.co.uk
Tel: 01506 637840
Fax: 01506 652910
CoreTec Drilling
17 Barnton Street
Stirling
Scotland
FK8 1HF
[email protected]
www.coretecdrilling.co.uk
Tel: 0800 068 3837
Fax: 01786 841659
GT Diamond Drilling Services
26 Fairfield Road
Dundee
Scotland
DD3 8HR
[email protected]
www.gtdiamonddrilling.com
Tel: 01382 813399
Fax: 01382 813388
Holemasters Scotland Ltd
114 Main Street
Chapelhall
Airdrie
ML6 8SB
[email protected]
[email protected]
www.holemasters-scotland.co.uk
Tel: 0845 467 1500
Fax: 0845 467 1700
Lochwynd Ltd
19 Lonmay Place
Panorama Business Village
Porterfield Road
Queenslie
Glasgow
G33 4ER
[email protected]
www.lochwynd.com
Tel: 0141 781 4477
Fax: 0141 781 4724
Celtest Ltd
Trefelin
Llandegai
Bangor
Gwynedd
LL57 4LH
[email protected]
www.celtest.com
Tel: 01248 355269
Fax: 01248 360400
NORTH
A19 Drilling Ltd
Penine Avenue
North Tees Industrial Estate
Stockton-on-Tees
TS18 2RJ
[email protected]
www.a19drilling.co.uk
Tel: 01642 619171
Fax: 01642 613712
Accurate Drilling
41 Fox Howe
Coulby Newham
Middlesborough
Cleveland
TS8 0RU
[email protected]
www.accurate-drilling.co.uk
Tel: 01642 594 600
Fax: 01642 597 600
Allied Drilling Ltd
Unit A6, Walter Leigh Way
Moss Industrial Estate
St Helens Road
Leigh
Lancashire
WN7 3PT
[email protected]
Tel: 01942 673066
Fax: 01942 679066
Barton Drilling Ltd
Contex Works
Station Road
Latchford
Warrington
Cheshire
WA4 1LB
[email protected]
www.bartondrilling.co.uk
Tel: 01925 653354
Fax: 01925 230151
Concrete Drilling
Services Ltd
Unit 4, Waters Meeting
Britannia Way
Bolton
BL2 2HH
[email protected]
www.concretedrillingservices.co.uk
Tel: 01204 382398
Fax: 01204 380625
Diamanttek Ltd
Unit 12, Raikes Clough Ind Estate
Raikes Lane
Bolton
BL3 1RP
[email protected]
www.diamanttek.co.uk
Tel: 01204 366435
Fax: 01204 366437
18 | CONCRETE CUTTER 1·2013
Hi-Tec Diamond
Drilling Ltd
Units 9 & 10
Courtyard No. 2
Maple Estates
Wentworth Road
Mapplewell
Barnsley
S75 6DT
[email protected]
www.hitecdiadrill.co.uk
Tel: 01226 388553
Fax: 01226 388553
Holemasters Demtech Ltd
Unit 1
Bracewell Avenue
Poulton-le-Fylde
Lancs
FY6 8JF
[email protected]
www.holemasters.co.uk
Tel: 01253 892890
Fax: 01253 892891
P C Richardson & Co Ltd
Courville House
34 Ellerbeck Court
Stokesley Industrial Park
Stokesley
North Yorkshire
TS9 5PT
[email protected]
www.pcrichardson.co.uk
Tel: 01642 714791
Fax: 01642 714387
Precision Drilling 2000 Ltd
Wyke Street
Hedon Road
Hull
East Yorkshire
HU9 1PA
[email protected]
www.precisiondrilling.co.uk
Tel: 01482 586585
Fax: 01482 223864
RT Diamond Drilling Ltd
6 Abbotts Hall Avenue
Clock Face
St Helens
Merseyside
WA9 3XW
[email protected]
Tel: 01744 801234
Fax: 01744 833944
Sawcon Plant Ltd
Knoll Street Industrial Park
Salford
Manchester
M7 2BL
[email protected]
Tel: 0161 792 2827
Fax: 0161 792 2800
MIDLANDS
Access Drilling Services Ltd
5 Lantern View
New Mills
High Peak
Derbyshire
SK22 3EE
[email protected]
www.accessdrilling.co.uk
Tel: 01663 743201
Fax: 01663 745551
Crown Construction
Services Ltd
Unit 5
Queens Drive Industrial Estate
Chasetown
Burntwood
Staffordshire
WS7 4QF
[email protected]
www.crowncutting.co.uk
Tel: 01543 682329
Fax: 01543 671622
D-Drill (Master Drillers) Ltd
Shilton Industrial Estate
Bulkington Road
Shilton
Coventry
CV7 9QL
[email protected]
www.d-drill.co.uk
Tel: 02476 612858
Fax: 02476 615425
EMDD-Universal
Diamond Drilling
Churchfields House
1 Lockwood Close
Top Valley
Nottingham
NG5 9JN
[email protected]
www.emdd.co.uk
Tel: 0115 967 9000
Fax: 0115 967 4223
Fehnert Plc
St. Mary’s House
1 - 5 St. Mary’s Road
Market Harborough
Leicestershire
LE16 7DS
[email protected]
www.fehnertplc.com
Tel: 01858 434422
Fax: 01858 411911
G & B Chasing & Drilling Ltd
HRS House
Garretts Green Lane
Birmingham
B33 0SJ
[email protected]
Tel: 0121 680 5003
Fax: 0121 680 7003
Gnat UK Ltd
Unit 5
Jackson Court
Olympic Way
Richmond
North Yorkshire
DL10 4FD
[email protected]
www.gnatuk.com
Tel: 01748 826046
Fax: 01748 826056
Jointline Ltd
Airfield View
Camp Road
Witham St. Hughs
Lincoln
Lincolnshire
LN6 9TW
[email protected]
www.jointline-group.co.uk
Tel: 01522 868636
Fax: 01522 868806
MEMBERS DIRECTORY
Philmore Contracting Ltd
Unit 14, Twigden Barns
Brixworth Road
Creaton
Northants
NN6 8NN
[email protected]
www.philmore.co.uk
Tel: 01604 505902
Fax: 01604 505756
WW Group
10 Midland Court, Central Park
Leicester Road
Lutherworth
Leicestershire
LE17 4PN
[email protected]
www.wwgroup-insurance.com
Tel: 01455 203377
Fax: 01455 203388
SOUTH EAST
A C Specialist Services LLP
96 Broom Road
Stanford
Bedfordshire
SG18 9JE
[email protected]
Tel: 01462 813666
Fax: 01462 813351
A J Willcock Holeformers Ltd
Unit 2, Great Hidden Farm
Wantage Road
Eddington
Hungerford
Berkshire
RG17 0PW
[email protected]
Tel: 01488 686175
Fax: 01488 683801
Acudrill Ltd
12 Meadway
London
SW20 9HY
[email protected]
www.acudrill.co.uk
Tel: 020 8540 5335
Fax: 020 8542 5387
Baker Dougan Ltd
Unit 4, Oyster Estate
Jackson Close
Farlington
Portsmouth
Hants
PO6 1QN
[email protected]
Tel: 02392 370777
Fax: 02392 371777
Bardon Contracting
Thorney Mill Road
West Drayton
Middlesex
UB7 7EZ
[email protected]
Tel: 01895 422861
Fax: 01895 422871
Bill Batten Concrete Cutting Services
4 Cannon Road, Heathfield Ind Est
Newton Abbot
TQ12 6SG
[email protected]
Tel: 01626 201 220
Britannia Cutting Services Ltd
Unit 1
Millside Industrial Estate
Lawson Road
Darford
Kent
DA1 5BW
[email protected]
www.britcut.co.uk
Tel: 01322 221533
Fax: 01322 220790
C A Drillers Ltd
Dockers Field Farm
Pean Hill
Whitstable
Kent
CT5 3BJ
[email protected]
www.cadrillers.com
Tel: 01227 458883
Fax: 01227 458884
Carthew’s Diamond Drilling
Unit C2
Alpha House
Alpha Place
Garth Road
Morden
Surrey
SM4 4TS
[email protected]
www.carthewsdrilling.co.uk
Tel: 0208 393 6700
Fax: 0208 393 6767
Castle & Pryor
Elles House
4B Invincible Road Ind Estate
Farnborough
Hampshire
GU14 7QU
[email protected]
www.castle-pryor.co.uk
Tel: 01252 524080
Fax: 01252 524090
Clifbreakers Ltd
Unit 16
Blackheath Business Estate
78B Blackheath Hill
Blackheath
London
SE10 8BA
[email protected]
www.clifbreakers.co.uk
Tel: 020 8694 5700
Fax: 05600 751875
Concrete Construction
United Ltd
Borstal Court Farm
Burham Road
Rochester
Kent
ME1 3DH
[email protected]
Tel: 01634 826960
Fax: 01634 827025
Corehard Ltd
4 Viewpoint
Babbage Road
Stevenage
Hertfordshire
SG1 2EQ
[email protected]
www.corehard.com
Tel: 01438 225102
Fax: 01438 213721
Diacore Concrete Cutting Ltd
2 Witheygate Avenue
Staines
Middlesex
TW18 2RA
[email protected]
www.diacore.co.uk
Tel: 01784 456 013
Fax: 01784 456 026
Hydro Pumps Ltd
19 Highmead
Fareham
Hampshire
PO15 6BL
[email protected]
www.hydro-pumps.co.uk
Tel: 01329 823420
Fax: 01329 823425
Diacutt Concrete Drilling Services
8 The High Street
Colliers Wood
London
SW19 2AE
[email protected]
www.diacutt.com
Tel: 020 8540 0300
Fax: 020 8542 9901
Invictacut Ltd
Landway Farm
Basted Lane
Crouch
Sevenoaks
Kent
TN15 8PY
[email protected]
www.invictacut.co.uk
Tel: 01732 884977
Fax: 01732 887400
Diamond Cutters (Herts) Ltd
Unit 10, Silk Mill Ind Est, Brook Street
Tring
Hertfordshire
HP23 5EF
[email protected]
www.diamond-cutters.co.uk
Tel: 01442 891313
Fax: 01442 890751
Diamond Edge Drilling Ltd
Hall Place, Penshurst Road
Leigh
Kent
TN11 8HH
[email protected]
www.diamondedgedrilling.co.uk
Tel: 01732 832223
Fax: 01732 834442
Drilltec Diamond Drilling UK LLP
Diamond House, Dencora Way
Sundon Park Road
Luton
Bedfordshire
LU3 3HP
[email protected]
www.drilltec.co.uk
Tel: 01582 564455
Fax: 01582 847016
Elmcrest Diamond Drilling Ltd
4 Duncrievie Road
Lewisham
London
SE13 6TE
[email protected]
www.elmcrest-diamond.co.uk
Tel: 020 8318 9923
Fax: 020 8318 1034
Frog Diamond Drilling Ltd
Unit F6, Springfield Enterprise Park
Northfleet
Kent
DA11 8HH
[email protected]
www.frogdiamonddrilling.co.uk
Tel: 01474 323377
Fax: 01474 323388
Hampshire Chasing Ltd
12 Station Road North
Totton
Southampton
SO40 3AB
[email protected]
www.hampshirechasing.co.uk
Tel: 02380 871124
Fax: 02380 663909
J Hare Diamond Drilling
(Hitchin) Ltd
5-7 Wallace Way
Hitchin
Hertfordshire
SG4 0SE
[email protected]
www.jhare.com
Tel: 01462 433199
Fax: 01462 420196
John F Hunt
Demolition Ltd
Europa Park
Grays
Essex
RM20 4DB
[email protected]
www.johnfhunt.co.uk
Tel: 01375 366748
Fax: 01375 366769
Kilnbridge Construction
Services Ltd
McDermott House
Cody Road Business Centre
South Crescent
London
E16 4TL
[email protected]
www.kilnbridgegroup.com
Tel: 020 7511 1888
Fax: 020 7511 1114
KSS Diamond Drilling
& Sawing Ltd
Russell Gardens
Wickford
Essex
SS11 8BH
[email protected]
www.kssgroup.co.uk
Tel: 01268 578402
Fax: 01268 561034
M25 Contracting Ltd
Unit 15
Ramac Industrial Estate
Ramac Way
Charlton
London
SE7 7AX
[email protected]
www.m25contracting.com
Tel: 0208 858 2572
Fax: 0208 858 5465
CONCRETE CUTTER 1·2013 | 19
MEMBERS DIRECTORY
MB Diamond Drilling Ltd
Unit 5A , Algrey Trading Estate
Cooks Way
Hitchin
Hertfordshire
SG4 0JA
[email protected]
www.mbdiamonddrilling.co.uk
Tel: 01462 471130
Fax: 01462 450969
Mohan Building Services Ltd
3A Manor Road
Gravesend
Kent
DA12 1AA
[email protected]
www.mohanbuildingservices.com
Tel: 01474 323943
Fax: 01474 567617
National Drilling Services
Unit 3, 123a Gorton Road
Reddish
Stockport
SK5 6EE
[email protected]
www.national-drilling.co.uk
Tel: 0161 443 2822
Fax: 0161 443 2421
Precision Cutting Ltd
Unit 2, Sunset Farm, Cross-in-Hand
Heathfield
East Sussex
TN21 0TX
[email protected]
www.precisioncutting.co.uk
Tel: 01435 864666
Fax: 01435 867888
Protech Construction (UK) Ltd
14a Sidley Green
Bexhill on Sea
East Sussex
TN39 5AH
[email protected]
Tel: 01424 215400
Fax: 01424 734456
Robore Cuts Ltd
Unit 16, Mitcham Ind Est, Streatham Rd
Mitcham
Surrey
CR4 2AP
[email protected]
www.robore.com
Tel: 020 8646 4466
Fax: 020 8646 4046
Technical Concrete Cutting Ltd
Greenlands House
Southbrook Road
West Ashling
Chichester
West Sussex
PO18 8DN
[email protected]
www.technicalconcretecutting.co.uk
Tel: 01243 572784
Fax: 01243 576060
Tideway Plant Services Ltd
Northend
Park Corner Road
Betsham
Kent
DA13 9LJ
[email protected]
www.tidewaydrilling.com
Tel: 01474 833444
Fax: 01474 834 400
The Bush Hammering Co Ltd
26 Huntsmans Drive
Upminster
Essex
RM14 3YU
[email protected]
www.bushhammering.com
Tel: 01708 227673
Fax: 01708 223687
Truecut Diamond Drilling Ltd
Ovenden House
Wilcox Close
Aylesham Industrial Estate
Aylesham
Kent
CT3 3EP
[email protected]
www.truecutdrilling.co.uk
Tel: 01304 843 069
Fax: 01304 841 343
SOUTH WEST
Drill Cut Ltd
Units 2 & 3, Bowling Hill Bus Park
Chipping Sodbury
Bristol
BS37 6JL
[email protected]
www.drillcut.co.uk
Tel: 01454 324236
Fax: 01454 317230
SUPPLIERS
Speed Drill Ltd
Units 17 & 18, Chingford Ind Centre
Hall Lane
Chingford
London
E4 8DJ
[email protected]
www.drilling-contractor.co.uk
Tel: 020 8524 0004
Fax: 020 8524 6778
Applied Diamond (Products) Ltd
Holly Farm Business Park
Honiley
Kenilworth
Warwickshire
CV8 1NP
[email protected]
www.applieddiamond.com
Tel: 01926 485185
Fax: 01926 485186
Strata Coring Ltd
461 London Road
High Wycombe
Bucks
HP11 1EL
[email protected]
www.stratacoring.co.uk
Tel: 01494 447006
Fax: 01494 447006
Pentruder UK Ltd
Unit 5, Cranford Industrial Units
Berwick
East Sussex
BN26 6TF
[email protected]
www.pentruder.co.uk
Tel: 0845 241 9616
Fax: 0845 241 9617
20 | CONCRETE CUTTER 1·2013
Edge Tools & Equipment Ltd
Unit 9, Victoria Centre, Victoria Way
Pride Park
Derby
Derbyshire
DE24 8AN
[email protected]
www.edgediamond.com
Tel: 01332 226699
Fax: 01332 210211
Golz (UK) Ltd
Unit A5, Springhead Enterprise Park
Springhead Road
Northfleet
Kent
DA11 8HB
[email protected]
www.golz.co.uk
Tel: 01474 321679
Fax: 01474 321477
Heger GmbH European
Diamond Tools
Grissheimer Weg 5, D-79423
Heitersheim
Germany
[email protected]
www.heger.com
Tel: 049 7634 5020
Fax: 049 7634 502213
Hertfordshire Diamond Products Ltd
Unit F, Gunnels Wood Park
Gunnels Wood Road
Stevenage
Herts
SG1 2BH
[email protected]
Tel: 01438 748758
Fax: 01438 362060
Hilti (Great Britain) Ltd
1 Trafford Wharf Road, Trafford Park
Manchester
M17 1BY
[email protected]
www.hilti.co.uk
Tel: 0844 815 6280
Fax: 0800 886 200
Husqvarna Construction
Products UK
Unit 4, Pearce Way
Gloucester
Gloucestershire
GL2 5YD
[email protected]
www.husqvarnacp.com
Tel: 0844 844 4570
Fax: 0844 844 4568
Pegasus Industrial
Products Ltd
Unit 2
Cardigan Close
Tonteg
Pontypridd
CF38 1LD
[email protected]
www.pegasusindustrial.co.uk
Tel: 01443 217699
Fax: 01443 202896
Premier Diamond
Products Ltd
Unit 21
Chislet Close
Lakesview Business Park
Hersden
Canterbury
Kent
CT3 4LB
steve.webb@premierdiamondproducts
.co.uk
www.premierdiamondproducts.co.uk
Tel: 01227 711555
Fax: 01227 710540
Pro-Point Equipment Ltd
Unit 1
14 Peter Road
Lancing Industrial Estate
Lancing
West Sussex
BN15 8TH
[email protected]
www.propointequipment.com
Tel: 01903 763965
Fax: 01903 750414
Onyx Europe Ltd
Unit 1
Britannia Business Park
6 Annear Road
Penryn
Cornwall
TR10 9TA
[email protected]
www.onyxuk.com
Tel: 01326 375300
Fax: 01326 378600
Saint-Gobain
Abrasives Ltd
Albert Drive
Burgess Hill
West Sussex
RH15 9TN
[email protected]
www.nimbus-diamond.com
Tel: +44 (0) 1444 259444
ICS Blount Europe
Rue Emile Francqui 5
1435 Mont-Saint-Guibert
Belgium
[email protected]
www.icsbestway.com
Tel: + 32 10 301251
Fax: + 32 10 301259
Toolguy Ltd
14 Lonsdale Drive
Washford Park
Shrewsbury
SY3 9QJ
[email protected]
www.toolguyltd.co.uk
Tel: 07545 559889
Fax: 0872 115 4119
Major Diamond
Supplies Ltd
Unit 23, Rothersthorpe Crescent
Rothersthorpe Ave Trading Estate
Northampton NN4 8JD
[email protected]
www.majordiamondsupplies.co.uk
Tel: 01604 767600
Fax: 01604 767658
Tyrolit (UK) Ltd
Eldon Close
Crick
Northants
NN6 7UD
[email protected]
www.tyrolit.com
Tel: 01788 823738
Fax: 01788 823089
CASE HISTORIES CASE HISTORIES
WWGroup
The Construction Insurance
Specialists
Concrete Industry
Scheme
WWGROUP
Contact: Jamie Ward
10 Midland Court Central Park Leicester Road Lutterworth
Leicestershire LE17 4PN
Tel: 01455 203377 Fax: 01455 203388
Email: [email protected]
wwgroup-insurance.com
CONCRETE CUTTER 1·2013 | 21
TECH FORUM
Concrete chain saw safety:
don’t forget the obvious
In the more than 20 years since the hand-held chainsaw concept for cutting
concrete became a commercial product, a great deal of advances have taken place
– better diamonds, better chains, better saws, new equipment, and even best use
practices – but the importance of operator safety remains as high today as ever.
Examination of working units in the field, and those in contractors’ shops,
continually unveils some lack of attention to some simple details that can
enhance operator safety. A few examples are given below:
Chain side
cover integrity
Cutting operations and individual
operators should check the integrity of
the chain side cover on a regular basis
and ensure there are no cracks, no
holes from slurry blasting, no missing
sections, and no warping in fi t-up to the
main saw body frame. Additionally, the
slurry “baffle” and drain sections of ICS
hydraulic saws must not be removed,
and they must not have missing fasteners
or missing/damaged fins. Any conditions
that make a “hole” or result in a weaker
guard may result in operator injury upon
the event of a piece of debris being
ejected due to chain speeds, or in the
worse case, ejection of a component
part. Figs 1 and 2 show examples of
field saws that are not acceptable.
Bottom guard
flap attachment
Equally important and often overlooked
is the rubber, bottom guard-flap, also
known as the “mud flap”. This flap
enhances operator safety, in particular
in any application of floor cutting. In a
floor cutting scenario, the operator’s
shins and lower torso are more
exposed to being struck by debris or
even a broken chain. The guard-flap
is designed to minimise this hazard,
and must not be removed. Too many
saws are uncovered in field use with
someone having made this modification
intentionally, or not having replaced
a missing guard flap as an oversight.
Figs 3 and 4 show examples of proper
and improper use of the flap guard.
22 | CONCRETE CUTTER 1·2013
Hydraulic inputs
Fig 1 Side cover with damaged baffle-drain
Many professional concrete cutting
contractors utilise high flow (litre/
minute) power supply units as their
source of hydraulic power. Regardless
of the type of hydraulic power supply
unit, when switching from a high flow
tool, it is extremely important that the
operator adjusts the source flow rate
to match the recommended tool input.
Providing too much hydraulic flow will
cause motor shaft over-speeding.
Fig 2 Side cover with missing baffle-drain
Hydraulic pressure is also an important
factor in the settings. Over pressurisation
will stress all connections, hoses, seals
and o-rings for the entire hydraulic
circuit. Exceeding pressure inputs will
typically blow out seals and o-rings at
an accelerated rate. Spills, leaks, down
time and costly refi ts will be the result.
Random field inspections of proper
flow and pressure output settings are
a good safety practice. In addition, it
is a good idea to have your hydraulic
power supply equipment tested and
calibrated on a maintenance schedule.
Today’s newer generation, larger pitch
diamond chains are much stronger than
past versions of chain. This can lead
to operators being more confident in
concrete chainsaws and even, in some
cases, exceeding hydraulic flow supply
specification. The increased strength
benefi t of the newer, large pitch chain
does not mean that any manufacturer’s
specifications should be disregarded, nor
does this benefi t allow for compromise
of the two obvious safety mechanisms
of the chain side cover and guard-flap.
Operators should make sure these
parts are present and securely in place
before commencing any cutting work.
Fig 3 Proper operation with flap guard
in place and in good condition
Fig 4 Improper operation
with flap guard missing
TECH FORUM
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Performance is in the details
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Email us at: [email protected]
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Unique
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icsbestway.com
CONCRETE CUTTER 1·2013 | 23
INDUSTRY NEWS
New
partnership
Nic Laurens and his
cycling support crew
DSA Supplier Member Toolguy Limited has teamed up with its French
distributor DIAM to market products in the UK. DIAM are reputed to
be one of the top five diamond tool suppliers in France and have over 20
years experience in the business. “I knew the first time I visited DIAM
that they would be a good partner for my diamond chain in France,”
said Nic Laurens Managing Director of Toolguy. And the more I became
acquainted with them, I knew their product was right for the UK.”
Toolguy has carried out extensive testing in the drilling, civil engineering
and hire sectors and is now launching an additional 1,100 products. As
it says on their new catalogue: A range to meet all your requirements.
Nic Laurens recently undertook a cycling charity run covering three
countries in three days. Cycling 175 miles from Dunkirk in France across
Belgium to The Hague in Holland, Nic and 29 other riders were raising
money for their local hospice. “Severn Hospice is dear to me and
they like all hospices do so much for people with terminal illness,”
said Nic. “I have seen at first hand the service they give to patients
and families alike – incurable illness affects the whole family.
Severn Hospice requires over £16,000 a day or almost 6 million
pounds a year, to continue the services they offer.”
Anyone wishing to give can do so by contacting Nic directly on
0754 555 9889 or via the website http://www.justgiving.com/Nic-Laurens3
Toolguy Ltd
14 Lonsdale Drive, Shrewsbury, SY3 9QJ.
Tel: +44 754 555 9889
Fax: +44 872 115 4119
[email protected]
www.toolguyltd.com
DIAM
DIAMisisthe
theNew
NewBrand
Brand from
fromTOOLGUY
TOOLGUY
x
BLADES
Products
Products Developed
Developed for
forYOU.
YOU.
x
SEGMENTS
Now we are so much more than just
a Diamond Chain company, with
over 1,100 new products we have
something for you. A range to meet
all your requirement, with orders
taken up to 6pm and FREE next
day delivery we go out of our way
to support you.
x
CHAINS & BARS
x
CORE BITS
x
LOOPING BLADES
x
RING SAW BLADE
x
GRINDING CUPS
x
ABRASIVES
x
DRILL RIGS
CALL: Nic on 0754 555 9889
EMAIL:: [email protected]
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - x
New Catalogue Available Now
x
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CHAIN SAW HIRE
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RE-TIPPING
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WIRE
TOOLGUY Limited - Registered in England
14 Lonsdale Drive, Shrewsbury, SY3 9QJ
T: +44 754 555 9889 F: +44 872 115 4119
www.toolguyltd.com
24 | CONCRETE CUTTER 1·2013
ACCESSORIES
INDUSTRY NEWS
Ladies first
Tara Bartley, director of Middlesbrough
based DSA member Accurate Drilling Ltd
is the first female to gain accreditation
at NVQ level 2 in diamond drilling.
She started her working life as an
apprentice trained electrical/mechanical
maintenance craftsperson and lasted 17
years in the manufacturing industry before
being becoming involved in the construction
industry. She has been drilling for over four
years but now spends more time office
bound as a result of running a company
whose workload is expanding year on year.
Accurate Drilling has been involved in
many projects on National Grid gas
and electricity substations throughout
England, Scotland and Wales, working
mainly with groups of contractors which
form what are known as Alliances.
These companies include Galliford Try,
J Murphy and Sons, Siemens, Wilton
International and BAM Nuttall.
The work is very varied, involving such
things as the controlled demolition and
removal of blast walls in electricity substations
and the cutting of railway bridge abutments
to enable the client to lift away an existing
steel bridge and replace it with a new one
– nine of these bridges have been treated
in this way so far.
Not content to rest on her laurels, Tara is
now undertaking the NVQ level 3 supervisor’s
course and hopes eventually to complete
a level 6 NVQ manager’s course.
Accurate Drilling Ltd
41 Fox Howe, Coulby Newham,
Middlesbrough, Cleveland, TS8 0RU.
Tel: 01642 594600
Mob: 07939221295
[email protected]
Darda splitting systems
The Darda hydraulic demolition tool system
consists of two components: concrete splitters
and HCS 6 Combi Shears, both of which
can provide solutions to many construction
problems. These lightweight, portable tools
come with a variety of power units. Norton
Nimbus, from Saint-Gobain Abrasives Ltd, as the
sole UK distributor for Darda since 1994, offers
the construction and demolition industries what
it considers to be one of the best tools for most
demolition contracts.
The splitting cylinders are hydraulic handheld
demolition devices, which can easily split both
concrete and stone material with great accuracy,
no noise and no vibration. The splitters come into
their own when larger conventional demolition
devices are ruled out because they produce dust,
flying debris, vibrations, noise, limited access
and possibly exhaust fumes. With an enormous
splitting force up to 413 tonnes, they are dust
and vibration free, with a near silent operation.
The HCS 6 Combi Shears develop a high cutting
and/or breaking power when opening or closing.
Therefore the HCS 6 power is optimised when
breaking or splitting. The operation is always
fully under control when opening or closing via
the HCS 6’s integrated control valve. The four
different operating heads are a huge benefi t
to the professional operator allowing the best
solution to many different demolition problems
and an increase in productivity.
Benefi ts of the HCS 6 Combi Shears system
include the accurate breaking of concrete and
masonry, as well as the suitability of use on a
wide range of materials including metal, cables
and wood. They can be used on a variety of
demolition jobs inside buildings, being virtually
free of vibration, dust and noise. They are light
and easy to handle, with a quick operation.
These splitting cylinders and HCS 6 Combi
Shears are all powered by a range of hydraulic
power packs driven by electric (EP), petrol/
diesel (BP) or pneumatic (AP) propulsion units
of varying capacity. Single tools or combinations,
up to a maximum of six splitters, are possible
using the correctly specified power unit. The
powerful units are compact and light, easily
transportable and reliable.
Despite Darda’s quality and strong performance,
the company still makes a continuous effort
to develop and expand the product range.
Throughout 2012 Darda introduced a new
range of compact EP, BP and AP power units
to meet and exceed current and planned EU
regulations. These units are faster acting, with
a twin hydraulic pump system, resulting in even
further increased productivity. They produce a
maximum hydraulic pressure of 50 MPa (500 bar)
and the high quality hydraulic hoses are designed
for such high pressures.
HCS 6 Combi Shears
cutting reinforced concrete
For more information on
Darda Splitting Systems contact:
Sonia Uppal – Tel: 01785 279569
[email protected]
Charlie McShane – Tel: 01785 279561
[email protected]
www.norton-nimbus.com
C9 Splitter in use
on mass concrete
CONCRETE CUTTER 1·2013 | 25
CASE HISTORIES
INDUSTRY
NEWS
Universal Diamond Drilling
During 2012, East Midlands Diamond Drilling Ltd (EMDD) started the
process of changing its company name to Universal Diamond Drilling Ltd.
Having traded under the EMDD name for the last 30 years,
the company felt that people’s perception has been that it only
works locally when in fact it carries out work nationwide and
occasionally in Europe.
From now, the name Universal Diamond Drilling will
be actively promoted so that over a period of time
the company’s established, excellent reputation will
be readily associated with the new name, and EMDD
will become less dominant.
Everything else about the company remains the same
including its people and the services it offers. This
includes a directly employed CSCS and CPCS trained
mobile workforce consisting of highly qualified and
experienced technicians, managed by a team of
graduate supervisors whose qualifications include
mechanical, legal, civil and structural engineering.
“We are committed to a programme of
training for all our employees, which in turn
has contributed to our exemplary site safety
record,” says Chairman Trevor J Vickers.
www.emdd-universal.com
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26 | CONCRETE CUTTER 1·2013
CASE
INDUSTRY
HISTORIES
NEWS
CONCRETE CUTTER 1·2013 | 27
ASSOCIATION NEWS
New CPCS
category for
robotic
crushers
Training & Assessments Consultants are the leading specialist
training and testing centre for the new Construction Plant
Certification Scheme (CPCS) category D91 demolition plant
360 pedestrian operated robotic crusher and breaker.
T.A.C has been established for over 10 years and its quality
assurance systems are recognised by Investors in People and
Matrix for information advice and guidance. The company
offers national coverage to carry out CPCS theory and
practical tests and bespoke training at three locations in the
UK and also gives onsite training for NVQ level 2 diplomas.
The company – together with the CPCS, the DSA and
the National Federation of Demolition Contractors and
Construction Plant Certification Scheme – has developed
this new category for the specialist 360 pedestrian robotic
machine, which has been tested on-site for the approval
process. The course consists of a theory test, in which the
operative answers questions devised by the working group,
and a practical on-site test to achieve CPCS certification.
28 | CONCRETE CUTTER 1·2013
T.A.C offers a full training package for new operators,
refreshers for the more experienced, together with the
theory and on-site practical tests required for achievement.
It is also a CAA accredited assessment centre delivering
a variety of level 2, 3 & 6 qualifications, ranging from
Drilling & Sawing to Construction Site Manager.
Since gaining accreditation to deliver NVQ Diploma
qualifications, PASMA mobile towers and CPCS
certification, the company has grown year after year.
It currently has 10 assessors, 12 instructors and 5 CPCS
testers based at various locations around the UK to cater
for all training needs. They are all fully qualified to deliver
training and assessments to the highest standards. Although
its main offices are located in Nottingham, T.A.C can also
provide many of its courses around the country, including
various Site Safety Plus courses such as SSSTS and SMSTS.
Tel: 0115 985 2455
[email protected]
ASSOCIATION NEWS
The NSCC:
transforming
the specialist
sector
The National Specialist Contractors’ Council (NSCC) brings
together the common aims of almost 30 specialist trade
organisations within the construction industry and is the
authoritative voice of over 6,000 Specialist Contractors in
the UK. NSCC’s objective is to speak clearly, collectively
and concisely on issues that impact on its members.
With such a wide-ranging membership across a diverse
industry, it is essential for NSCC to focus on business issues
that affect all specialist trades, including DSA members. With
every pound spent on construction returning £2.84 to the
economy, construction growth is critical to the success of the
UK economy and NSCC is committed to providing support to
Specialist Contractors to help them operate more efficiently.
Support available for YOUR business
Whilst there are numerous day to day issues to deal with for
any business, NSCC has proven to be very effective by focusing
on four key ones: payment practices, pre-qualification, training
and associated grants, and the low carbon agenda. All DSA
members have access to a range of advice and support
provided by NSCC to ensure NSCC Specialist Contractors
are uniquely placed to deliver quality, best value and
integrated solutions to the industry’s clients:
• Telephone helplines on matters including employment,
legal and contractual and health and safety
• Access to increased grants and training courses
• Insurance advice and products
• Online CRB checks
• Discounted fee for the Builder’s Profile
• Guidance and publications
Helping YOUR business get paid on time
Since its launch in 2007, the award-winning Fair Payment
Campaign has made a significant difference to payment
practices within the industry, making it easier for Specialist
Contractors to get paid on time. To date, the campaign has:
1. Established 30-day payment terms
as the industry expectation
2. Led to payment within 30 days being
required on Government projects
3. Changed the Construction Act to
improve certainty of payment
4. Published the Specialist Contractor’s Toolkit
enabling the supply chain to get paid on time
5. Resulted in a clear and effective No Retention Policy
The campaign provides a range of support to help Specialist
Contractors protect their money, including checking the
credit worthiness of potential clients, getting their contracts
right, improving cash flow, and resolving disputes.
To find out more about how the campaign could
help your business, visit the dedicated website at
www.fairpaymentcampaign.co.uk
National Specialist Contractors’ Council (NSCC)
6-8 Bonhill Street, London, EC2A 4BX.
Tel: 0844 249 5351
www.nscc.org.uk
Clients demand high quality on site which means employers
need to responsibly protect their workforce particularly in a
high risk environment and NSCC collects accident statistics
from over 2,300 companies to demonstrate the commitment
of NSCC Specialist Contractors to the health and safety of
their workforce. Over the last nine years, the NSCC fatality
rate has fallen by 50% , the major injury rate by 43% , and
the over 3-day rate by 60% and these results have helped
NSCC members secure better insurance premiums.
Membership of DSA with the benefi ts it offers, both
directly and via NSCC, provides vital support and
representation at the highest levels that no business
should be without. In November 2012, high profile client
Land Securities made NSCC membership a supply chain
requirement demonstrating that clients are increasingly
recognising the benefi ts of using an NSCC member.
CONCRETE CUTTER 1·2013 | 29
ASSOCIATION NEWS
DSA
apprenticeships
The Drilling & Sawing Association Apprenticeship Scheme has now been running for eight
years and continues to expand each year. Out of all the specialist sector apprenticeships
– some 28 in total – we were the first to take on-board this training scheme and we
consider ourselves very much the forerunner in offering this type of qualification to our
members. This is demonstrated by the fact that last year we awarded 7 Level 2 Drilling
and Sawing NVQs and we have given out a total of 73 since we started.
However without the help and vision of our
member companies the scheme would have
never have got off the ground. The contractor
members believed in the disciplined approach
of the apprenticeship structure and were
instrumental in driving the scheme forward
and creating the templates for the courses on
offer. The supplier members supported it by
freely giving of their time and equipment to
ensure that training could take place with the
latest plant and tools.
We would particularly like to thank Golz,
Hilti Husqvarna, ICS, Pentruder and Tyrolit
for their contributions towards the provision
of plant and equipment, which now covers
a wide range to provide training in coring
and drilling, sawing (floor, track, hand,
ring and chain), hydraulic crushing and
bursting and robotic demolition.
We are also grateful for the financial
assistance received from Construction
Skills (CITB), CSCS Management and
the National Specialist Assessment Centre
(NSAC) and the support of their staff who
provided valuable assistance through the whole
process. The apprenticeship is now embedded
into our training matrix and recognised by the
construction industry at large.
And the number of courses we have on
offer is growing. In addition to the Level 2
Specialist Concrete Drilling and Sawing NVQ
qualification, we now also run courses on
Level 2 Demolition Plant 360 Operation,
Level 3 Supervisors and Level 4 Managers
course. The introduction of these new
courses shows that the DSA is a pro-active
association and is always quick to react to its
members’ needs.
The DSA Board would like to thank all who
have made this apprenticeship scheme so
successful. By working together with our
members, we have achieved what others
only dream of.
www.drillandsaw.org
30 | C
CONCRETE
O
CUTTER 1·2013
EVENTS
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CONCRETE CUTTER 1·2013 | 31
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ADVERTISERS INDEX
Training
DVDs
The DSA has launched a series of DVDs to assist
in the training of operatives in the sawing and drilling
industry. These come under the six headings of
Controlled Demolition,
Core Drilling, Floor
Sawing, Hand Sawing,
Track Sawing and
Wire Sawing.
The DVDs are not
intended to replace
official apprenticeship
training schemes but to
supplement them, and
will serve as an invaluable
guide for all sawing and
drilling companies in the
training of their operatives.
Copies can be ordered
from the DSA by phone:
0844 879 3452 or email:
[email protected]
32 | CONCRETE CUTTER 1·2013
Manufacture - Repair & Service - Sale & Hire - New & Used
DIAMOND CORING / DRILLING TRAILERS
HYDRAULIC DRILLS - STAND & HANDHELD
HYDRAULIC HAND HELD SAWS
HYDRAULIC CHAIN SAWS
HYDRAULIC POWER UNITS & TOOLS
HOSES & CABLES
FLOOR SAWS - DIESEL , PETROL & ELECTRIC
CRUNCHERS & BURSTERS
BLADES, CORE BITS CHAIN & WIRE
CONCRETE GRINDING TOOLS
Email [email protected]
Phone: 01604 767600
Mobile: 07831 567 765
OVERVIEW
www.majordiamondsupplies.co.uk
HIRE
www.mdshire.co.uk
The POWER of the Association
The Drilling and Sawing Association stands for
quality, be it the quality of our members or the
quality of the benefits and services we provide,
We are the only forum exclusively committed
to serving the Drilling and Sawing industry
You should be a DSA member because ...
Membership allows you to:
• Use the DSA logo – a recognised badge of credibility
• Enjoy numerous membership benefits
• Keep up-to-date with technical and legislative developments
• Promote your products and services to specifiers and end-users
• Be kept informed of industry good practice and safe working
• Be part of a dynamic and proactive trade organisation
And provides:
• Knowledge and ideas to increase your effectiveness and bottom line
• Time and money saving benefits
• Free directory listings and publicity
• Guides, handbooks and information binders
• Training and development opportunities
• Valuable contacts and networking
• Opportunities to collaborate and influence
The DSA is the only organisation that represents the interests of companies
involved in the drilling and sawing industry and is committed to the
improving of standards within the industry by establishing better
codes of safe working practice, education and training.
Visit us online at
www.drillandsaw.org.uk
The Largest, Most Powerful
Floorsaw in Great Britain...
Supplied by...
Long term supplier of diamond
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EAST MIDLANDS DIAMOND DRILLING
UNIVERSAL
DIAMOND DRILLING
emdd-universal.com
Tel: 0115 967 9000
Churchfields House • 1 Lockwood Close • Top Valley • Nottingham • NG5 9JN