摘要
为了对稳定型橡胶改性沥青混合料AC-13的级配范围进行优化,本研究在中国交通公路科学研究所《公路沥青路面施工技术规范》推荐的AC-13级配范围的基础上,首先初步确定合适的级配研究区间,然后将这一区间近似均分成一定数目的小区间,从而得到一系列级配,进而通过马歇尔方法成型试件,通过体积指标和其他技术指标的测定,分析各个级配的优缺点并进行微调,最终选出两条最优级配范围,并进行了路用性能的检验。性能试验结果表明,优选出的两条级配可以作为稳定型橡胶改性沥青混合料AC-13的级配上下限。
With the purpose of optimizing the gradation range of stabilized rubber modified asphalt mixtures AC - 13 in this paper, the suitable gradation interval was firstly determined on the basis of the scale recommended in the ＂standard＂, secondly, a series of gradations were obtained by dividing it into a number of inter- cell. According to these gradations, specimens were fo and other technical indicators were measured. We analyzed the and fine - tuned. Eventually carried out. The test results of stabilized rubber modified a pair of optimal gradations were rmed by the method of Marshall. Void volume advantages and disadvantages of each gradation chosen, and pavement performance tests were showed that the two - level optimization could be used as the gradation boundaries asphalt mixtures AC - 13.
出处
《石油沥青》
2012年第2期1-5,共5页
Petroleum Asphalt
关键词
稳定型橡胶改性沥青
级配
空隙率
路用性能
stabilized rubber modified asphalt
gradation
void volume
pavement performance
