粉煤灰再生粗集料混凝土基本性能研究  

Basic behaviors of recycled coarse aggregate concrete with fly ash

作　　者：余斌[1] 熊进刚[2] 扶名福[2] 宋固全[2] 

机构地区：[1]江西工业工程职业技术学院,江西萍乡337055 [2]南昌大学,江西南昌330031

出　　处：《混凝土》2008年第9期67-69,共3页Concrete

摘　　要：由于粉煤灰的形态效应、微集料效应和火山灰效应,选择粉煤灰对再生粗集料混凝土进行改性,研究粉煤灰不同掺入方式对再生粗集料混凝土坍落度、强度、弹性模量及弹强比的影响,得出粉煤灰的不同掺入方式对再生粗集料混凝土的性能影响各不相同,30%外掺法是粉煤灰掺入再生粗集料混凝土的较佳方案的结论。Based on the influence of fly ash, microaggregate and pozzolana,recycled coarse aggregate concrete is modified by fly ash.The influence of different mixing ways of fly ash on strength, collapse, elastic modulus and elastic modulus-to-strength ratio of recycled coarse aggregate concrete is studied and concluded, and concludes, among the different adding methods of fly ash, that 30% adding method has the best efficiency.

关 键 词：粉煤灰 再生粗集料混凝土 强度 弹性模量 弹强比 

分 类 号：TU528.041[建筑科学—建筑技术科学]