| The difference in strength modulus between the semi-rigid base course and the asphalt surface layer of the highway is relatively large.If the interlayer treatment is not in place,it will become a weak link in the road structure layer and cannot withstand large shear forces,thus displacing the asphalt pavement.Packages and other diseases.By providing a transparent layer between the base layer and the surface layer to improve the adhesion between the base layer and the surface layer,the shear strength and the bond strength between the semi-rigid base asphalt surface layers of the road can be effectively improved,and the road can have a better structure.Durability and bearing capacity.In this paper,in-depth investigation of the application of semi-rigid base asphalt pavement in China and in-depth analysis of the existing domestic and foreign research conclusions,and based on the analysis of asphalt material properties and the causes of asphalt pavement,based on the analysis,the high rigidity and permeability of semi-rigid base asphalt pavement The layer material technology is mainly studied,and the penetration depth and bond strength are the directions of research.The matrix asphalt,emulsifiers,stabilizers,and tackifiers and their compatibility ratios are determined through experiments.High-permeability and high-viscosity layer materials with good permeability and adhesion properties,and then the shear strength and bond strength between the semi-rigid base asphalt surface layer as the object of study.Layer materials are compared with commonly used kerosene dilute asphalt,emulsified asphalt,and other translucent materials.The analysis shows that the high-permeability and high-viscosity materials are superior to other translucent materials used in the project.Then,the best spraying amount and construction technology of high-permeability and high-viscosity layer materials were determined through experiments. |
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