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《Petroleum Asphalt》 2020-03
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Development and Performance Evaluation of Anti-Torsion High Viscosity Modified Asphalt

Wang Qiang;Yao Hongru;Li Jian;Niu Xiaowei;Cao Yadong;Shanghai Road and Bridge (Group) Co.,Ltd.;Shanghai Urban Construction NichiReki Special Asphalt Co.,Ltd.;  
The anti-torsion flying ability of drainage asphalt mixture is improved by improving the performance of asphalt cement,due to the anti-torsion flying ability of drainage asphalt pavement is not insufficient.Firstly,combining with the standards of Japanese companies,studying the key technical indexes of cement materials,which affect the anti-torsion performance of drainage asphalt mixtures,anti-torsion modified asphalt with high viscosity(AT-HVMA) is prepared.The turning-wheel rutting test,static torsion test and rutting test are used to evaluate the performance of AT-HVMA.Results showed that the shear stress is the key technical index of asphalt mixture.The dynamic stability of drainage asphalt mixture with AT-HVMA is 2.5 times that of the ordinary high viscosity modified asphalt mixture(HVMA).When the deformation amount reaches the same 8 mm,it needs about 300 min,which is 6 times of HVMA.Results showed that the AT-HVMA has the strong torsion resistance and high temperature stability.
【Fund】: 上海市經信委(上海市企業技術中心協同創新能力專項)(滬J-2018-29);; 上海市科委(世界級生態島生態道路建設技術研究與集成應用示范(19DZ1204200 19DZ1204205);; (科技部政府間國際創新合作重點專項(海綿城市耐久性通水鋪裝建養整套技術示范工程應用及產業化)(2016YFE0108200)
【CateGory Index】: U414
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