摘要
以回收沥青路面材料（RAP）为主体，研究了水泥-粉煤灰（C—FA）和再生骨料2个体系之间的适应性．结果表明：随着温度的升高和加载频率的降低，RAP混合料的动态弹性模量随之降低；当mn／ms为1／5～5／5，水泥掺量（质量分数）为2％～6％，粉煤灰掺量（质量分数）为5％～6％时，再生骨料和C—FA体系之间有较好的适应性；当mA／mS为2／5～3／5时，RAP混合料的软化系数大于0．75，具有较好的水稳定性．
Cementitious materials are important to enhance the performance of concrete. The adaptability between cement-fly ash（C-FA） and aggregate（S/A--soil and old asphalt） in recycled asphalt pavement materials（RAP） was studied. The test results show that the dynamic elastic modulus of RAP decreases with increasing temperature and decreasing loading frequency. When maims is 1/5 -5/5, the use level of cement is 2 %- 6 % （by mass）, that of fly ash is 5 %-6 %（by mass）, better adaptability can be achieved be- tween aggregates and C-FA materials. When mA/ms is 2/5 - 3/5, softness coefficient of RAP is over 0.75, better water stability can be obtained.
出处
《建筑材料学报》
EI
CAS
CSCD
北大核心
2014年第1期182-186,共5页
Journal of Building Materials
基金
国家自然科学基金资助项目(51178197)
关键词
水泥-粉煤灰
软化系数
再生沥青路面材料
cement-fly ash
coefficient of softness
recycled asphalt pavement material（RAP）
