A Convenient Truth : Asphalt Sensitive to Nature · 2014-02-20 · Pioneer Road Services Australia...
Transcript of A Convenient Truth : Asphalt Sensitive to Nature · 2014-02-20 · Pioneer Road Services Australia...
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A Convenient Truth : A Convenient Truth :
Asphalt Sensitive to NatureAsphalt Sensitive to Nature
IPWEA Conference
4th December 2008
Presented by: Meda Sicoe
Amount of waste generated by various countries:
waste per person per year (t)
USA 0.88
Australia 0.74
Canada 0.50
Denmark 0.40
Japan 0.35
Germany 0.34
Switzerland 0.32
Sweden 0.28
France 0.26
U.K. 0.25
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Australia – State of the Environment 2001
USA 300 million people
Australia ……… 22 million people
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Australia – State of the Environment 2006
Australia generated approximately 32.4 million tonnes of solid waste or
approximately 1,629 kilograms of waste per person:
27%
29%
42%
2%
Municipal
Construction & demolition
Commercial & Industrial
Other
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Australia State of Environment 2006
-Of the total solid waste generated in 2002–03 (32.4 million
tonnes), approximately 54% was disposed to landfill (17.4 million
tonnes) and the remainder (46%) was recycled (about 15 million
tonnes
54%
46%
Recycled waste
Disposed to landfill
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(a) Excludes Tasmania and the Northern Territory.
Source: Department of the Environment and Heritage, 2006 Submission to
the Productivity Commission Inquiry into Waste Generation and Resource
Efficiency.
4614 9597 8274 1622 701Australia (a)
694672235229ACT
632 1561 452469235South Australia
2382641032492Western Australia
311 251488212445Queensland
514 4291 9451 740744Victoria
485 8303 3091 3651 156New South
Wales
%‘000 tonnes‘000 tonnes‘000 tonnes‘000 tonnes
Diversion
rate
Total
recycled
Construction
and
demolition
Commercial and
industrial
Municipal
RECYCLING, 2006
Environmentally Friendly AsphaltEnvironmentally Friendly Asphalt
RAPRAP
GlassGlass
Crumb Crumb rubberrubber
Warm Warm asphalt mixasphalt mix
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Glass asphaltGlass asphalt
Facts and figures :Facts and figures :
Every glass bottle that is recycled can save Every glass bottle that is recycled can save enough energy to light a 100enough energy to light a 100--watt light bulb for watt light bulb for four hours.four hours.
: : ASPHALT ASPHALT : : One of the biggest user of natural One of the biggest user of natural raw materials. raw materials. --Perth metro area: 700000 tones asphalt/yearPerth metro area: 700000 tones asphalt/year
: : ASPHALT : One of the biggest opportunity of ASPHALT : One of the biggest opportunity of using recycling materialsusing recycling materials
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Glass asphalt :Glass asphalt :
Glass asphalt was originally developed as an alternative to laGlass asphalt was originally developed as an alternative to landfill ndfill disposal of mixed color waste glass. disposal of mixed color waste glass.
LLow toow to heavy traffic applicationsheavy traffic applications, for , for residential streets, distributor and industrial roads residential streets, distributor and industrial roads etc. etc.
Glass asphalt is basically the same as conventional hotGlass asphalt is basically the same as conventional hot--mix asphalt, mix asphalt, except that 5% to 40% of the rock and/or sand aggregate is replaexcept that 5% to 40% of the rock and/or sand aggregate is replaced by ced by crushed glass crushed glass
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Glass asphalt advantages:
�Glass asphalt surfaces are more reflective than conventional asphalt
- improves night time road visibility.
� The surface dries faster than traditional paving after rain because the glass particles do not absorb water.
- increase road safety
� Thousands of tones of waste glass now being sent to landfill sites can be used in asphalt production to improve the asphalt properties
- environmental & technical
� Due to the glass content the asphalt will hold heat longer than conventional asphalt
- easier to work and compact
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When more than 15% of glass is added it is When more than 15% of glass is added it is necessary to add hydrated lime or other necessary to add hydrated lime or other antistripping agents.antistripping agents.
Mix design :Mix design :
For asphalt wearing surfaces the ideal size For asphalt wearing surfaces the ideal size of crushed glass is of crushed glass is –– 3 mm 3 mm
Bigger sizes of crushed glass (5Bigger sizes of crushed glass (5--20 mm) can 20 mm) can be used in asphalt intermediate or base coursesbe used in asphalt intermediate or base courses
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Meets the asphalt volumetric properties Meets the asphalt volumetric properties required for 35, 50 or 75 Marshall Blowsrequired for 35, 50 or 75 Marshall Blows
Glass asphalt in Western AustraliaGlass asphalt in Western Australia
Ranford Rd.
Glennon Way
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2003
City of Canning
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Section Surfacing Condition Tyres Time Trial Speed Displacement Coefficient of
friction
Average
Coefficient
1 47.9 14.4 0.6
2 48.6 14.7 0.608
3 50.2 16 0.605
1 50.3 14.8 0.623
2 47 13 0.62
3 50 12.9 0.66
1 46.2 11.1 0.712
2 51.5 13.9 0.712
3 49.9 12.8 0.718
1 46.6 11.1 0.754
2 48.9 12.3 0.757
3 49.3 12.3 0.766
1 48 11.1 0.795
2 47.6 11.3 0.769
3 51.5 13.2 0.77
5
10mm DGA
with recycled
glass
11:04-11:15 0.778Overcast/
Dry
Bridgestone
P205/65 R15
4 10mm DGA 10:53-11:00 0.759Overcast/
Dry
Bridgestone
P205/65 R15
3 10:35-10:45 0.7147mm SMAOvercast/
Dry
Bridgestone
P205/65 R15
2 10:14-10:25 0.63410mm SMA Overcast/
Dry
Bridgestone
P205/65 R15
1 09:58-10:0810mm SMA 0.604Overcast/
Dry
Bridgestone
P205/65 R15
Ranford Rd, City of Canning trial sections – Skid resistance
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Glass asphalt
To this
The three amigos:
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South Metropolitan Regional Council
City of Canning
Crumb rubber asphaltCrumb rubber asphalt
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Improves resistance to cracking Improves resistance to cracking
Improves resistance to rutting Improves resistance to rutting
Improves skid resistance Improves skid resistance
Improves the fatigue resistanceImproves the fatigue resistance
Reduces the tyre noise levelsReduces the tyre noise levels
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061015- Hazelmere, 10mm Granite + Glass (50 Blows / C170)
+DG 10 Hazelmere +071004 DG10 PMB + other comparative graphs
100
10,000 100,000 1,000,000 10,000,000
# CYCLES TO 50 % INITIAL STIFFNESS
TENSILE "MICROSTRAIN""
1000
500
6/3/07
NSW North C320 mix
(AEY)
Qld C320 mix
(ABI) Sydeny C320 mix
(ZH)
DG10 HAZELMERE
(AGY)
WA-Glass Mix-
C170 (AGX)
DG10 Granite
Crumb rubber
Crumb rubber asphaltCrumb rubber asphalt
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Crumb-Rubber Modified Asphalt Paving : occupational exposures and acute health effects (SuDocHE 20.7125/2:2001-0536-2864)U.S. Dept of Health and Human Services
U.S. Dept. of Health and Human Services, Public Health Service, Centres for Disease Control and Prevention, National Institute for Occupational Safety and Health National Technical Information Service, distributor
Crumb rubber asphaltCrumb rubber asphalt
Port HedlandPort Hedland
HazelmereHazelmere DubboDubbo
McGrathMcGrath’’s Hills Hill
GeebungGeebung
KempseyKempsey
LavertonLaverton
MilduraMilduraWaggaWagga
WestallWestallLangwarrinLangwarrin
BrooklynBrooklyn
GeelongGeelongWarnamboolWarnambool
WollongongWollongongAlexandriaAlexandriaWallgroveWallgroveDoyalsonDoyalson
WauchopeWauchope
TamworthTamworthLismoreLismore
Bald HillBald HillMarsdenMarsdenToowoombaToowoomba
GladstoneGladstone
MackayMackayEmeraldEmerald
LongreachLongreachAlice SpringsAlice Springs
ProserpineProserpine
TownsvilleTownsville
CairnsCairns
DarwinDarwin
HazelmereHazelmere
BunburyBunburyMile EndMile End
Asphalt PlantsAsphalt Plants
RutherfordRutherford
Papua Papua
New GuineaNew GuineaSolomonSolomon
IslandsIslands
Hong KongHong Kong
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