Bitumen emulsions and road maintenance

Transcription

Bitumen emulsions and road maintenance
Azeem Remtulla
International Bitumen Emulsion Federation
Outline
•
•
•
•
•
•
Introduction: what is IBEF?
The market: road maintenance
Case studies
Present developments for the future
Sustainable solutions
Conclusions
2
What is IBEF?
• International Bitumen Emulsion Federation
• An association that gathers national associations
dealing with asphalt emulsions
• Individual members from countries with no
association
• IBEF represents more than 70% of the emulsion
volumes worldwide
3
Where is IBEF?
4
Who is IBEF?
• National associations dealing with asphalt emulsions
• National associations dealing with asphalt industry
and pavements
• National associations dealing with road construction
• Individual companies
5
Some figures
• Data collected for the WOE 2010
6
Some figures
• Emulsion v/s Asphalt
14%
12%
10%
8%
6%
emulsion v/s bitumen 2005
4%
emulsion v/s bitumen 2009
2%
0%
Europe Africa
Asia Oceania
America
7
Some figures
• TOP 10 = 74% of the total volumes
USA
26%
France
29%
Mexico
Brazil
China
2%
Russia
Spain
Canada
3%
12%
3%
India
Japan
3%
4%
5%
5%
8%
Others
8
• Emulsion is mainly designed
for maintenance works
• Road maintenance =
pavement preservation
• Pavement preservation =
asset preservation
• An example: the United
Kingdom
9
•
•
•
•
Chip seal
Micro surfacing
Cold mixes
In place recycling
10
•
•
•
•
Chip seal
Micro surfacing
Cold mixes
In place recycling
11
• Asset preservation
• Level of owner awareness
– Low in emerging market where the focus is on new construction
– Fair in most of mature markets; lower attention at local level
– High in countries such as Australia and in Korea where PMS is
implemented
– Politicians do not pay enough attention
• Politicians
– Politicians do not know the value of road assets
– In the USA, “pavement preservation is included in the transportation
bill now being debated in the Congress” (FP2)
12
The market
• Asset preservation
• Politicians
• Allocated funds
– Insufficient…
– South Africa: “Central Treasury now insists on road authorities having
a PMS in place prior to allocation of funds”
– India: “excise is imposed on sale of petrol and diesel. This money is
used for pavement construction and preservation”
13
The market
• Allocated funds are insufficient
– Volumes are shrinking
– Hot mix asphalt volumes are decreasing
600,00
hot and warm mix asphalt in the USA
500,00
400,00
300,00
200,00
100,00
0,00
1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
14
The market
– Volumes are shrinking
– Hot mix asphalt volumes are decreasing
320,00
310,00
hot and warm mix asphalt in the Eu 27
300,00
290,00
280,00
270,00
260,00
250,00
240,00
230,00
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
15
The market
• Allocated funds are
insufficient
– Japan: -50% v/s 2000
– France: ¼ of the needs for
national roads
• Needs for road maintenance
are constant, increasing
• “More for less”
• A real challenge
• How can the asphalt
emulsions industry address
this challenge?
16
The market
• Allocated funds are
insufficient
– Japan: -50% v/s 2000
– France: ¼ of the needs for
national roads
• Needs for road maintenance
are constant, increasing
• “More for less”
• A real challenge
• How can the asphalt
emulsions industry address
this challenge?
17
Case study 1
• Use the right technique in the right place
• “Guidelines for the preservation of High-Traffic- Volume Road
ways”
technique
Slurry seal
Micro
surfacing
Chip seal
UTFC
HMA
cost / yd2 $
0.75 - 1.00
1.50 - 3.00
1.50 - 2.00
4.00 - 6.00
3.00 - 6.00
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Case study 2
• Comparison South East of France
technique
Micro
surfacing
Micro
surfacing
2 layers
cost / m2 €
2.04
3.04
Chip seal
Very thin
asphalt
concrete
HMA
2.33
6.20
7.90
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Case study 3
• Maintenance program for the Versailles district (France)
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Case study 3 (Contd.)
• Use the right technique at the right place
• Maintenance program for the Versailles district (France)
21
Case study 4
• Development of emulsion techniques v/s other asphalt based
techniques in the UK
110
105
100
emulsion
95
AC
90
85
80
2005
2006
2007
2008
2009
2010
2011
2012
22
Present developments for the future
• The market is demanding
– Long term texture depth for micro surfacing
– Lower noise chip seal
– SBS modified emulsions to counter the use of hot applied modified
binders
– Trackless tack coats
– Emulsion based mixes for wearing course and base course
– Sustainable solutions
23
Emulsion based mixes
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Sustainable solutions
• Rating road techniques according to key parameters
– Energy consumption
– CO2 emissions
• Structure
– Road base asphalt (hot)
– Grave emulsion
– Cold in place recycling
• Surface
– Ultra thin wearing course (hot)
– Micro surfacing
– Surface dressing (emulsion)
IRC Nagpur 2010
25
Structure (energy)
IRC Nagpur 2010
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Structure (CO2)
IRC Nagpur 2010
27
Surface (energy)
IRC Nagpur 2010
28
Surface (CO2)
IRC Nagpur 2010
29
Chip seal
• Strong development of the
use of modified emulsions
• Development in Europe
chip seals in Germany
chip seals in the United Kingdom
90%
90%
80%
80%
65%
70%
60%
50%
35%
40%
2001
25%
20%
30%
20%
67%
70%
60%
40%
80%
15%
2010
50%
2001
40%
30%
2010
22%20%
20%
10%
0% 0%
0%
6%
10%
0%
5%
0%
0%
non modified
emulsions
modified
emulsions
non modified modified cut
cut backs
backs
non modified
emulsions
modified
emulsions
non modified modified cut
cut backs
backs
30
Sharing techniques
• Many reliable techniques are available around the World and
could be used beyond their own frontiers. Examples:
– Cape Seal
– Grave emulsion
– Emulsion for railway tracks
South Africa
France
Japan
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Conclusion
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Pavement maintenance is a must everywhere in the World
Moneys are becoming insufficient in many countries
Sustainability is a growing “must”
Bitumen emulsions offer reliable solutions
www.ibef.net
32
Conclusion
www.ibef.net
33
Thank you
34

Bitumen emulsions and road maintenance

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