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Easy to use, environmentally friendly polyurethane injection resins. De
Neef’s one-component polyurethane injection resins come in 3 distinct
ranges for different applications during tunnelling operations:
• Water cutting and water control
• Waterproofing of the concrete structure
• Consolidation and stabilisation of unstable zones in the drill face area.
Requiring simple 1-component injection equipment, De Neef’s
1-component injection resins have adjustable reaction times to allow full
adjustability during the application.
Several specially developed tunnelling techniques such as Combi-Grouting
in rock faces allow time and money to be saved in case of problems during
the tunnelling operation.
2-component polyurethane injection resins for
Rock Stabilisation
Fast reacting 2-component polyurethane injection resins for void filling,
structural void filling, anchoring rock bolts and rock consolidation.
Alternative ultra fast reacting resins are available to provide fast
waterproofing of large leaks in combination with large voids. Variable
reaction times and expansion rates allow the right product to be chosen to
solve the problem at hand.
2-component resins are fast track solutions when it is impossible for the
construction or tunnel operation to wait for cement to cure to sufficient
strength.
2-component Organo-mineral injection resins
CFC-free, foaming or non foaming organo-mineral resins are used for fast
consolidation and void filling in large areas where low polymerisation
temperatures are required. Ideally suited for prevention and repair of
collapses in tunnels and in specific mining applications.
Poly-acrylate resins
2-component low viscosity poly-acrylate injection resins are used for
waterproofing curtain injections, soil coagulation and repairing leaks in
tunnel liners between shotcrete faces in NATM tunnels.
Epoxy injection resins
2-component epoxy injection resins for structural injections in concrete
tunnel segments or in-situ poured concrete.
Colloidal silicas
Advanced technology alternative for classic waterglass and silicate
injection grouts. Colloidal silica grouts have lower overall pH and are less
susceptible to syneresis than normal sodium-silicate grouts. Low viscous
liquids, colloidal silicate grouts are used for temporary waterproofing soils
and areas before the tunnel shield.
De Neef Conchem
Industriepark 8
B-2220 Heist-op-den-Berg
Belgium
Tel.: +32 (0)15 24 93 60
Fax: +32 (0)15 24 80 72
Email: [email protected]
De Neef Technologies
De Neef China
Pol. Ind. El Pedregar
C/ Progrés s/n, nave 9
08160 Montmeló
Spain
Tel.: +34 (0)93 544 45 54
Fax: +34 (0)93 572 39 29
Email: [email protected]
Unit 1507, New Commerce Centre
19 On Sum Street
Shatin • Hong Kong SAR
China
Tel.: +852 (0)2646 8002/6
Fax: +852 (0)2637 7351
Email: [email protected]
De Neef France
De Neef Shanghai
Z.I. du Vert Galant
86 Av. du Chateau
95310 Saint Ouen L' Aumône
France
Tel.: +33 (0)1 3037 5600
Fax: +33 (0)1 3037 5601
Email: [email protected]
Suite 1608G
16F Feidiao International Building
1065 Zhao Jia Bang Road
200030 Shanghai • P.R. China
Tel.: +86 (0)21 5158 1696
Fax: +86 (0)21 5158 1686
Email: [email protected]
De Neef UK
De Neef Far East
Unit 3
96-100 Price Street • Birkenhead
CH41 3PR Wirral
United Kingdom
Tel.: +44 (0)151 666 1222
Fax: +44 (0)151 666 1113
Email: [email protected]
6 Gul Drive
629 458 Singapore
Singapore
Tel.: +65 (0)6863 1902
Tel.: +65 (0)6863 1520
Fax: +65 (0)6863 2102
Email: [email protected]
De Neef (CH) AG
De Neef Construction Chemicals
Langwiesstrasse 11
8360 Wallenwil
Switzerland
Tel.: +41 (0)71 971 46 56
Fax: +41 (0)71 971 46 10
Email: [email protected]
5610 Brystone Dr. Houston
Texas 77041
USA
Tel.: +1 (0)713 8960123
Fax: +1 (0)713 8493340
Email: [email protected]
De Neef Scandinavia
De Neef Norway
Långavallsgatan 15
42 457 Gunnilse
Sweden
Tel.: +46 (0)313 30 05 90
Fax: +46 (0)313 30 80 41
Email: [email protected]
Pb. 133, Jellestadveien 33 A
1740 Borgenhaugen
Norway
Tel.: +47 69 10 21 20
Fax: +47 69 10 21 21
Email: [email protected]
De Neef's expertise in tunnelling
and underground construction
De Neef Finland
Melkonkatu 18 A
00210 Helsinki
Finland
Tel.: +358 (0)9 671 063
Fax: +358 (0)9 679 311
Email: [email protected]
Distributor
© designed by Tom Verstappen • 2009
1-component Hydro-Active polyurethane
injection resins
www.deneef.eu
Tunnelling operations, excavation and other underground construction operations
quite often run into loose soil, fractured rock, collapse or large water inflows. Even
with the best possible preparation and engineering studies, these problems can
cause delays or stop the operation all together until a remedial action is found or
taken.
De Neef has a large range of injection pumps, packers and accessories available for all injection grouting operations in
tunnels and underground constructions.
Sleeve port pipes or Tube-à-Manchettes (TAM)
Pumps
IP 1C-HiPo
Delays caused by collapses or water leaks, push back the other operations, cause logistical problems and need to be solved as soon as possible to allow normal operations to continue.
• 1-component pneumatic pump
• 24 l/min
IP 1C-Pro
Although many problems can be solved using standard techniques and cement
injections, chemical grouts are sometimes necessary because of the amount and
velocity of the inflowing water, permeability of the soil or curing time restriction of
the selected mineral grout.
• 310 bars
• 1-component diaphragm pump
• 8 l/min
• 220 bars
Sleeve port pipes are used in heterogeneous or low permeability soils where full control of the grout injection is
required. Sleeve port pipes are available in PVC or steel and have rubber sleeves to cover holes drilled at specific
intervals. Different diameters, lengths and materials are available from De Neef as well as the connectors, end caps
and blind pipes.
Strainer Pipes
De Neef has 35 years experience in manufacturing high grade chemical grouts for waterproofing, water blocking and
consolidation of underground constructions and tunnels.
The solution however is not only restricted to selecting the correct grout, you also need the equipment, tools and
expertise to apply the grout successfully.
Strainer pipes are perforated steel pipes used for permeation grouting and consolidation of loose uniform soils.
Strainer pipes are available in different diameters and lengths of up to 2 m.
Strainer pipes are driven into the soil using a special percussion rig.
The long standing expertise of De Neef in consulting, engineering and application of the selected grout using techniques, which have been proven by the large number of references, such as:
• Stabilisation, consolidation and void filling
• Pre- and post grouting
• Umbrella injections
• Combi-Grouting
• Water control
• Rock bolting
Rock bolts and Anchors
IP 2C-Highflow
IP 2C-Variflow
• 2-component 1/1 fixed ratio
pump suitable for all De Neef
2-component injection grouts.
Skid mounted for easy transport and site manipulation.
IP 2C-200-A
• 2-component pneumatic 1/1
fixed ratio stainless steel pump.
• 2-component stainless steel pneumatic pump with adjustable flow rate
and loggers. Suitable for all De Neef
2-component injection grouts.
• 16 l/min
• 14 l/min
• 16 l/min
• 240 bars
• 200 bars
• 160 bars
The main areas of application are:
• Ground support in soft rock
• Face stabilization
• Fore poling
• Slope stabilization
• Systematic rock bolting
GRP
Steel anchors
Packers and Accessories
De Neef can supply you with all the knowledge, expertise, equipment and support required for a lasting and successful solution to your problem.
Anchor packer 38 mm
Drill diameter 40 mm
Screw down packer
17 – 25 mm
Inflatable packers
Bore holes 45 – 150 mm
Drum Handling
Equipment
Combi-Grouting adaptor
Mechanical packers
Bore holes 45 – 120 mm
Drill rigs and cement grout mixers
Installation of anchors, rock bolts as well as packers and sleeve port pipes requires suitable drill rigs and
equipment. De Neef can organise the necessary equipment and supporting personnel on site.