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 antiwater performance of asphalt mixture is the improvement of its water stability. Some antistripping agents, such as PA3, 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 antistripping 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 antistripping agent can improve the longterm 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.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2003年第4期562-566,共5页
Journal of Hefei University of Technology：Natural Science
