摘要
石料的酸碱性直接影响到沥青混合料的水稳定性,如果石料选择不当,很难得到水稳定性能良好的沥青混合料。通过对不同SiO2含量的10种石料所得的沥青混合料水稳定性回归分析比较,得出沥青混合料水稳定性随SiO2含量的增加呈线性衰减的趋势,提出当SiO2含量超过一定限度后,其所对应的沥青混合料将不能满足水稳定性的要求,并建议了其含量的上限值,为石料的选择提供了一定的依据。
The acid/alkalescence of the aggregate effects the water stability of asphalt mixture directly. It is difficult to acquire asphalt mixture with good water stability if the aggregate is unsuitable. In this article, through the analysis of influence of aggregates with ten different contents of SiO2 on the water stability of asphalt mixture, the water stability of asphalt mixture is degressed with the increase of SiO2 contents. When the SiO2 contents oversteps a certain cost, the asphalt mixture will can not satify the demand, the high-point of content is adviced, which offered some evidence for the choice of aggregate.
出处
《交通科技与经济》
2007年第2期9-10,共2页
Technology & Economy in Areas of Communications
