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In this section, you can access to the latest technical information related to the FUTURE project topic.
Performance analysis of different type preventive maintenance materials for porous asphalt based on high viscosity modified asphalt
Porous asphalt has been widely used all over the world. Nevertheless, as porous asphalt is a large-porosity and stone-on-stone interlocked structure, disasters in porous asphalt are typically presented in the form of raveling, cracking or a combination of them. Aiming to study and solve those problems, properties of four different types of preventive maintenance materials (reduced material RJ, the type of polymerizing GL1, CEM bonding enhanced material, emulsified asphalt EA) were analyzed. And then the four different types of preventive maintenance materials were used on a porous asphalt section which has been built for nine years. The performances of the porous asphalt before and after the curing were evaluated. It was found that CEM material increased the surface roughness, improving the skidding resistance of the pavement; GL1 and RJ can significantly improve the raveling resistance and the low-temperature cracking resistance of the mixture. Therefore, it is recommendable to take into account the apparent viscosity, cohesion and adhesion of the material when choosing a preventive maintenance material for porous asphalt pavement.
» Author: Bin Xu, Mingliang Li, Shaohua Liu, Jing Fang, Runduo Ding, Dongwei Cao
» Reference: 10.1016/j.conbuildmat.2018.10.004
» Publication Date: 10/12/2018
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