硅藻土改性OGFC沥青混合料的性能与应用

Performance and Application of Diatomite Modified OGFC Asphalt Mixture

硅藻土是一种新型沥青路面改性剂,在用SBS改性沥青配制的OGFC混合料中,将部分矿粉替换为等质量的硅藻土作为填料,然后对改性后的混合料进行试验分析。结果显示:掺入适量的硅藻土,可显著降低OGFC混合料的析漏损失和飞散损失,提高混合料的水稳定性,并改善其高低温性能。

Diatomite is a new type of asphalt pavement modifier.In the OGFC mixture prepared with SBS modified asphalt,part of the ore powder was replaced by equal mass of diatomite as a filler.The results showed that the addition of an appropriate amount of diatomite can significantly reduce the leakage loss and scattering loss of the OGFC mixture,improve the water stability of the mixture,and improve its high and low temperature performance.