橡胶颗粒沥青混合料的成型及性能研究

Effects of Granulated Crumb Rubber on the Properties of Asphalt Mixture

由于橡胶颗粒具有较大的弹性变形能力,所以用橡胶颗粒代替部分集料而铺筑的路面具有良好的除冰融雪性。本研究主要从级配、混合料拌和工艺、橡胶颗粒弹性模量对混合料性能的影响等方面,对橡胶颗粒沥青混合料进行了研究,确定并验证了橡胶颗粒沥青混合料的级配和拌和工艺,同时研究也表明橡胶颗粒沥青混合料的空隙率和回弹率都和橡胶颗粒的弹性模量具有良好的线性关系。

Due to the superior elastic deformation of rubber particles, part of aggregates can be replaced with rubber particles for a better pavement with properties of deicing and snow melting. In this paper the granulated crumb rubber asphalt mixture is studied from gradation, blending craft and the properties of the rubber particles. From the investigates, the gradation and blending craft are fixed and verified, and it shows that void fraction and resilient rate of asphalt mixture with rubber particles have a good linear relationship with elastic modulus of rubber particle.