The Analyse of the Long-Term Action Mechanism of High Viscosity Slip-ResistantEncapsulated Thin Layer and Asphalt Pavement
WANG Zhaolun1,2, LIU Zhaohui1, GAO Jianhua2
1 School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha 410076; 2 Highway Institute, Henan College of Transportation, Zhengzhou 450006
Abstract: In order to improve the long-term performance of asphalt pavement against sliding, a new kind of high viscosity anti-sliding encapsulating thin layer material was developed. Through theoretical analysis and indoor Kentucky dispersion test, flexural and compressive strength test, adhesion test, static modulus test and small load test. The results show that the developed high viscosity anti-slip packaging thin layer has a flexural and tensile strength standard value greater than 5.0 MPa, which meets the requirements of heavy traffic.It has good adhesion with asphalt pavement, and the shear stress of 28 d oblique shear test can reach 0.89 MPa, which is 1.8 times of the shearing strength of asphalt pavement. -10 ℃, 15 ℃ and 60 ℃ three test temperature static modulus measurements of 28 d are about 8 000 MPa, resistant to vehicle on-board and temperature stress; after 180 000 times of loading, the pendulum value still reached 51BPN, far higher than the 42BPN required by the code.Conclusion: the developed high viscosity anti-skid encapsulation thin layer has strong abrasion resistance, shear resistance and static modulus. Through synergistic action with asphalt pavement, the anti-skid performance of pavement can be improved and the long-term anti-skid mechanism of asphalt pavement can be comprehensively improved.
王兆仑, 刘朝晖, 高建华. 高粘度抗滑封装薄层沥青路面长效协同作用机理分析[J]. 材料导报, 2019, 33(Z2): 242-246.
WANG Zhaolun, LIU Zhaohui, GAO Jianhua. The Analyse of the Long-Term Action Mechanism of High Viscosity Slip-ResistantEncapsulated Thin Layer and Asphalt Pavement. Materials Reports, 2019, 33(Z2): 242-246.
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2019, Vol. 33 
