What%makes%EME% binder%sodifferent% - aapaqtmr.org · 02#Whatmakes#EME#binder#different–...
Transcript of What%makes%EME% binder%sodifferent% - aapaqtmr.org · 02#Whatmakes#EME#binder#different–...
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 1
What makes EME binder so different
Kanjana Yindee & Iulian Man SAMI Bitumen Technologies
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 2
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 3
European standards for bitumen : main classifica?on
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 4
Requirements for EME binders (Europe)
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 5
Not all hard bitumen fit for purpose!
What is the challenge of EME binder selection?
If the stiffness of bitumen is too high, the stiffness of bituminous mixes increases significantly. The risk of fatigue cracking also increases.
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 6
Performance requirements for EME2
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 7
Source: The modulus and fa?gue values for EME2 in the Colas research database for the period 2003-‐2008 (Colas CST, Europeanroads review 14 , Spring 2009 )
Example: Hard bitumen sources vs Modulus & Fatigue resistance
Modulus at 15 °C, MPa
Fa?g
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0 °C , µstrain
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 8
Main characteris?cs of SAMI EME binder Main characteris?cs of SAMI EME binder
Property 15/25 UK Trial
(TRL Report TRL636)
SAMI EME 15/25
Aus trial-‐Boral)
Spec EN 13924 15/25
PenetraOon at 25 °C, 100g, 5s, dmm 18 19 15 -‐ 25 SoRening Point, °C 66 70.0 55-‐71 Viscosity at 60 °C, Pa.s -‐ 5876 ≥ 550 Viscosity at 135 °C, Mm2/s 1490 1853 ≥ 600 Viscosity at 135 °C, Pa.s 1.535 1.909 -‐ A^er RTFOT PenetraOon at 25 °C , 100g, 5s, dmm 12 16 Report Retained penetraOon, % original 70 84.2 ≥ 55 Loss on HeaOng, mass% 0.07 0.05 ≤ 0.5 Increase in SoRening Point, °C 6 8 ≤ 8 Mix Proper?es Richness Modulus, % 3.65 -‐ ≥ 3.4 % Air Void 1.8 -‐ ≤ 6 Duriez test, RaOo before and aRer water emersion 0.97 -‐ ≥ 0.75 FaOgue Test (10°C, 25Hz, microstrain for 106 cycle) 130 -‐ ≥ 130 Complex modulus (15 °C, 10 Hz), GPa 14.05 -‐ ≥ 14 GPa Ruang test (60°C, 30,000 cycles) 5.8 -‐ ≤ 7.5
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 9
Characteris?cs – Australian EME mix
• Uses a hard grade bitumen 15 -‐25 PenetraOon • High SOffness Modulus • Improved ruang resistance
• Improved faOgue resistance
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 10
Benchmarking against French designed and prepared EME mix
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 11
C170
C320 C600
M1000/pen 43
SAMI EME binder/pen 19
Blown bitumen/pen 18
Mixing and compaction range are recommended by SP-2 and ASSHTO T312: as 0.17 ± 0.02 Pa.s and 0.28 ± 0.03 Pa.s.
Temperature Guides for SAMI EME binder
AR450
Mixing range
CompacOon range
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 12
Quality control of EME binder for this Trial
Method Property SAMI Tank
SAMI Truck
Boral Tank Target
AS 2341.12 PenetraOon at 25 °C, 100g, 5s, pu 19 19 19 15 -‐ 25
AS 2341.4 SoRening Point, °C 69.8 70.5 70.0 55-‐71
AS 2341.2 Viscosity at 60 °C, Pa.s 5800 5793 5876 ≥ 550
AS 2341.4 Viscosity at 135 °C, Pa.s 1.915 1.897 1.909 ≥ 0.6
SAMI’s Tank SAMI’s Truck Boral’s Tank
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 13
1. Not all hard bitumens are suitable for EME 2. EME technology requires a special low PEN binder manufactured to meet the target performance 3. High stiffness combined with good fatigue resistance to be achieved by bitumen processing 4. Mixing and compaction temperature of EME mixes need to be recommended by supplier
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02 What makes EME binder different – Iulian Man & Kanjana Yindee 14
Thank you