Experimental study of the fatigue performance of open-graded asphalt mixture friction course

2015 ◽  
Vol 19 (sup5) ◽  
pp. S5-464-S5-468 ◽  
Author(s):  
B. Yang ◽  
B. Xiong ◽  
Y. Ji ◽  
G. Ban
Keyword(s):  
Experimental Study ◽  
Asphalt Mixture ◽  
Fatigue Performance

Experimental Study of Typical Graded Asphalt Mixture about Dynamic Stability at High Temperature

2016 ◽  
Vol 858 ◽  
pp. 300-304
Author(s):  
Zhen Fu Chen ◽  
Dan Wu ◽  
Qiu Wang Tao ◽  
Yuan Chu Gan
Keyword(s):  
Experimental Data ◽  
Experimental Study ◽  
High Temperature ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Specimen Thickness ◽  
High Temperature Stability ◽  
Change Trend ◽  
Comparison And Analysis ◽  
The Stability

The high temperature stability of AC-16, AC-13, AC-20 under specimen thickness of 5cm and 6cm is studied through indoor asphalt mixture high rutting test, Through comparison and analysis about experimental data, it is found that the stability of AC-16, AC-13, AC-20 asphalt mixture at high- temperature decreases in turn. It is shown that thickness changes did not affect the change trend of the high temperature stability under gradation change, and the stability of AC-16 at high-temperature is the best, the AC-13 is second and the AC-20 is less.

Experimental study on warm mix technology of rubber modified asphalt mixture

2016 ◽  
pp. 349-354
Author(s):  
Aihong Kang ◽  
Mingbu Yao ◽  
Xueyang Jiu ◽  
Peng Xiao
Keyword(s):  
Experimental Study ◽  
Asphalt Mixture ◽  
Modified Asphalt

Experimental Study of Asphalt Mixture with Acetate Anti-Icing Filler

2021 ◽  
Author(s):  
Sen Han ◽  
Yuanyuan Yin ◽  
Biao Peng ◽  
Shihao Dong ◽  
Song Wu
Keyword(s):  
Experimental Study ◽  
Asphalt Mixture

Experimental study on fatigue performance of Q460 and Q690 steel bolted connections

2019 ◽  
Vol 138 ◽  
pp. 243-251 ◽  
Author(s):  
Hongchao Guo ◽  
Kuanhong Mao ◽  
Yunhe Liu ◽  
Gang Liang
Keyword(s):  
Experimental Study ◽  
Fatigue Performance ◽  
Bolted Connections

scholarly journals Adhesion between Asphalt and Recycled Concrete Aggregate and Its Impact on the Properties of Asphalt Mixture

Materials ◽  
2018 ◽  
Vol 11 (12) ◽  
pp. 2528 ◽  
Author(s):  
Yueqin Hou ◽  
Xiaoping Ji ◽  
Jia Li ◽  
Xianghang Li
Keyword(s):  
Free Energy ◽  
Surface Energy ◽  
Asphalt Mixture ◽  
Recycled Concrete ◽  
Fatigue Performance ◽  
Concrete Aggregate ◽  
Water Stability ◽  
Recycled Concrete Aggregate ◽  
Adhesive Energy ◽  
Natural Aggregates

To study and evaluate the adhesion between recycled concrete aggregate and asphalt, the contact angles (CAs) between droplet (water and ethanol) and recycled concrete aggregate (RCA), natural aggregates, and solid bitumen (matrix asphalt, SBS modified asphalt) were tested via the sessile drop method with an optical microscope. The surface free energy was then calculated. The CAs between hot asphalt and RCA and natural aggregates were tested via the hanging slice method. The adhesive energy between asphalt and RCA and natural aggregates were calculated based on the test results of the surface free energy and CAs. Then, the influence of RCA on the water stability and fatigue performance of the asphalt mixture was analyzed by testing the water stability and fatigue properties of hot mix asphalts containing RCA (HMA-RCA) with different aggregates and RCA dosages. The surface energy of the various aggregates and the CAs between aggregates and asphalts were sorted as follows: Granite > RCA > serpentinite > limestone. The surface energy and CA of RCA were very close to that of serpentinite. The adhesive energy between various aggregates and asphalt were sorted as follows: Limestone > serpentinite > RCA > granite. The adhesive energy between RCA and asphalt was also very close to that of serpentinite. The residual Marshall stability, tensile strength ratio, and fatigue performance of the HMA-RCAs were gradually reduced along with the increasing RCA dosage. This effect may be attributed to the fact that the adhesive energy between the RCA and the asphalt was less than that of water and that the asphalt was easily stripped from the RCA surface. Excessive RCA content in the aggregate can lead to excessive porosity of the HMA-RCA. The CAs and adhesive energy between RCA and asphalt showed significant effects on the water stability and fatigue performance of HMA-RCA.

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