Asphalt Mixtures Containing RAS and/or RAP: Relationships Amongst Binder Composition Analysis and Mixture Low Temperature Cracking Performance

2020 ◽  
Author(s):  
MINKYUM KIM ◽  
SAMUEL B. COOPER, JR. ◽  
LOUAY MOHAMMAD ◽  
GAYLON L. BAUMGARDNER
Keyword(s):  
Low Temperature ◽  
Asphalt Mixtures ◽  
Composition Analysis ◽  
Cracking Performance ◽  
Low Temperature Cracking ◽  
Binder Composition

Evaluation of Low-Temperature Cracking Performance of Warm-Mix Asphalt Mixtures

2012 ◽  
Vol 2294 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Brian Hill ◽  
Behzad Behnia ◽  
Salman Hakimzadeh ◽  
William G. Buttlar ◽  
Henrique Reis
Keyword(s):  
Low Temperature ◽  
Warm Mix Asphalt ◽  
Asphalt Mixtures ◽  
Cracking Performance ◽  
Low Temperature Cracking

Asphalt mixtures containing RAS and/or RAP: relationships amongst binder composition analysis and mixture intermediate temperature cracking performance

2016 ◽  
Vol 18 (sup1) ◽  
pp. 209-234 ◽  
Author(s):  
Samuel B. Cooper ◽  
Ioan Negulescu ◽  
Sreelatha S. Balamurugan ◽  
Louay Mohammad ◽  
William H. Daly ◽  
...  
Keyword(s):  
Asphalt Mixtures ◽  
Intermediate Temperature ◽  
Composition Analysis ◽  
Cracking Performance ◽  
Binder Composition

scholarly journals Study on Low-Temperature Cracking Performance of Asphalt under Heat and Light Together Conditions

Materials ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1541 ◽  
Author(s):  
Limin Li ◽  
Zhaoyang Guo ◽  
Longfei Ran ◽  
Jiewen Zhang
Keyword(s):  
Low Temperature ◽  
Early Stage ◽  
Asphalt Pavement ◽  
Climatic Conditions ◽  
Asphalt Binders ◽  
Composition Analysis ◽  
Cracking Resistance ◽  
Modified Asphalt ◽  
Cracking Performance ◽  
Low Temperature Cracking

The low-temperature cracking performance of asphalt is considered one of the main deteriorations in asphalt pavements. However, there have been few studies on the low-temperature cracking performance of asphalt under heat and light together. Hence, the ductility test, bending beam rheometer (BBR) test, and asphalt composition analysis test are combined to investigate the low-temperature cracking performance under heat and light together based on the climatic conditions of China. The styrene–butadiene–styrene block copolymer (SBS)-modified asphalt binders were prepared with different modifier types and base asphalt in this research. The results show that the low-temperature cracking resistance of asphalt reduces under heat and light together. It is obviously reduced at the early stage, and it becomes worse with the increase of the aging time, temperature, and ultraviolet (UV) intensity. The asphalt composition has a significant impact on its low-temperature cracking performance, and the SBS modifier can improve the low-temperature cracking resistance of asphalt. The rational selection of base asphalt and modifier can improve the low-temperature cracking performance of asphalt. Under heat and light together, whether base asphalt or modified asphalt, the change trends of their ductility and component content are similar. Therefore, to improve the anti-cracking ability of the asphalt pavement, it is suggested to use the ductility of asphalt aged by heat and light together for 15 days as the evaluation index of the low-temperature cracking performance of asphalt, and asphalt should be selected according to the temperature and UV intensity of the asphalt pavement use area.

Low-Temperature Cracking of Recycled Asphalt Mixtures

2012 ◽  
pp. 1261-1270 ◽  
Author(s):  
N. Tapsoba ◽  
C. Sauzéat ◽  
H. Benedetto ◽  
H. Baaj ◽  
M. Ech
Keyword(s):  
Low Temperature ◽  
Asphalt Mixtures ◽  
Recycled Asphalt ◽  
Low Temperature Cracking

Influence Analysis of Performance on Sasobit Warm Mix Asphalt with Salinity

2014 ◽  
Vol 490-491 ◽  
pp. 138-141
Author(s):  
Kun Wang ◽  
Jing Ya Chen ◽  
Xiang Qu
Keyword(s):  
Low Temperature ◽  
Environmental Benefits ◽  
Fatigue Performance ◽  
Test Results ◽  
Temperature Performance ◽  
Cracking Performance ◽  
Low Temperature Cracking ◽  
Short And Long Term ◽  
Analysis Of Performance

Sasobit warm mix drainage asphalt pavement has become increasingly popular due to its environmental benefits and comfortable using effect. However, test results show that its low-temperature and anti-fatigue performance have a certain degree of reduced. To improve the performance of asphalt four different doses (1%, 3%, 5% and 7%) of salt are added to the Sasobit asphalt. Laboratory tests were used to simulate short and long term aging asphalt in the process of construction and using pavement. A series of binder tests including bending beam rheometer (BBR), dynamic shear rheometer (DSR) and Brookfield viscosity tests were conducted. Results show an increase of rutting performance for warm mix binders with Sasobit while asphalt with salt has similar high temperature performance to original asphalt. Unlike Sasobit which has a decrease of cracking performance for asphalt at low-temperature, salinity can greatly improve the Low-temperature performance. And the low-temperature cracking performance and anti-fatigue performance presents a tendency of climbing up first and then declining with the increase of salinity. The figure of viscosity-temperature curve shows that the optimum of salinity is 5%.Further more, asphalt with Sasobit and salt can gain better performance and same mixing and compaction effect in lower 20°C than hot mix asphalt without it.

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