| 高粘沥青混合料性能研究 |
| 添加时间：2018/4/20 15:06:29 浏览次数： |
| 高粘沥青混合料性能研究 Study on performance of high viscosity asphalt mixture 通过新材料的研发以提高沥青混合料的综合路用性能,延长沥青路面在各种不利环境条件下的使用寿命已成为沥青路面材料领域一个新的发展趋势。而短切玄武岩纤维和高粘度改性沥青因其各自优异的材料特性逐渐成为这一领域内的研究热点。 Through the research and development of new materials to improve the comprehensive pavement performance of asphalt mixture and prolong the service life of asphalt pavement under various unfavorable conditions, it has become a new development trend in the field of asphalt pavement material. Short cut basalt fiber and high viscosity modified asphalt have gradually become the research focus in this field due to their excellent material properties. 短切玄武岩纤维具有高抗拉强度、高弹性模量等优异的力学特性,其显著的增粘、增弹、增强作用可改善沥青的高温流变特性,提高沥青混合料高温抗剪切流动变形能力与抗疲劳性能。高粘沥青是一种新型特种改性沥青,其粘度大,与矿料粘结力强,高粘沥青混合料具有优异的高温稳定性、水稳定性等路用性能,主要应用于排水路面、高性能钢桥面铺装以及湿热地区等对高温稳定性要求较高的特殊路段。 The short cut basalt fiber has excellent mechanical properties such as high tensile strength and high modulus of elasticity. Its remarkable viscosity increasing, projectile increasing and reinforcement can improve the rheological properties of asphalt at high temperature, and improve the shear flow deformation ability and fatigue resistance of asphalt mixture at high temperature. High viscosity asphalt is a new type of special modified asphalt. Its viscosity is large and its cohesive force is strong. High viscosity asphalt mixture has excellent road properties, such as high temperature stability, water stability and so on. It is mainly used in special sections of high temperature stability, such as drainage pavement, high performance steel bridge deck pavement and hot and wet areas. |
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