沥青混合料水稳定性试验研究  

Experimental study of the water stability of asphalt mixture

作　　者：程新春[1] 章志明[1] 杨树萍[2] 鹿中山[3] 

机构地区：[1]合肥市公路管理局,安徽合肥230022 [2]合肥工业大学土木建筑工程学院,安徽合肥230009 [3]合肥工业大学建设监理有限责任公司,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2003年第4期562-566,共5页Journal of Hefei University of Technology：Natural Science

摘　　要：提高沥青混合料的水稳定性是提高沥青混合料抗水害性能的重要难点之一,在高速公路沥青路面施工中一般采用PA-3等抗剥离剂来提高沥青混合料的水稳定性。在路网改造项目中,从工程造价等方面考虑,如何充分利用当地的材料资源,分析沥青混合料集料的酸碱性及使用石灰、粉煤灰等作抗剥离剂对沥青混合料水稳定性的综合影响,从而有效改善沥青路面的长期使用性能及耐久性能。One of the difficulties in improving the antiwater performance of asphalt mixture is the improvement of its water stability. Some antistripping agents, such as PA3, have been used to improve the water stability of asphalt mixture in the highway asphalt pavement construction. In this paper,lime and fly ash are used as the antistripping agents,and experiments are made to investigate the water stability of asphalt mixture. The comprehensive influences of the acid and alkaline properties of the asphalt aggregate and the lime and fly ash are analyzed. It is found out that the using of lime or fly ash as the antistripping agent can improve the longterm operating performance and durability of asphalt pavement and the engineering cost be saved,and it is thought that lime or fly ash or some other local materials can be used to improve the water stability of asphalt mixture in the projects of highway network reconstruction.

关 键 词：沥青混合料 水稳定性 高速公路 沥青路面 抗剥离剂 酸碱性 集料 用油量 马歇尔试验 

分 类 号：U414.75[交通运输工程—道路与铁道工程] U416.217