摘要
为改善胶粉改性沥青的存贮稳定性。依据沥青混合料实验规范,选取存储48h后的软化点之差,作为评定标准。通过控制变量的对比分析,对影响胶粉改性沥青存贮稳定性的各种因素进行评估。结果表明,较好的沥青品种,较大的胶粉目数,较低的胶粉掺量,较高的搅拌温度,较长的搅拌时间以及经过高速剪切,均可增加胶粉改性沥青的存储稳定性。
In order to improve the storage stability of rubber modified asphalt.Based on asphalt mixture experimental regulation,this paper selected softening point difference after storage 48 hours,as the evaluation standard.Base on the comparison of the controlled variables,one can have an evaluation on factors that may impact the storage stability of rubber modified asphalt.Good asphalt varieties, finer rubber powder,the lower addition amount of rubber,higher mixing temperature,a long time after mixing and high-speed shear,all can increase the rubber modified asphalt's storage stability.
出处
《上海公路》
2012年第1期53-55,14,共3页
Shanghai Highways
基金
国家自然科学基金(50308021)
关键词
胶粉改性沥青
存储稳定性
离析
软化点之差
Rubber Modified Asphalt
Storage Stability
Segregation
Softening Point Difference
