摘要
通过对砂率为35%、39%、43%、47%、51%的煤矸石粉混凝土进行试验,研究掺加煅烧煤矸石粉的情况下,砂率对混凝土和易性及7、28、60 d抗压强度的影响。煤矸石粉取代水泥掺入混凝土中,取代率为20%。研究结果表明:与基准组混凝土相比,砂率对煤矸石粉混凝土和易性及强度的影响趋势较平缓;煤矸石粉掺入混凝土后混凝土的整体强度降低,但能一定程度改善混凝土的保水性及黏聚性。
Experimented on the waste glass powder concrete with the sand ratio of 35%, 39%,43%,47%, 51% respectively.And anal- ysed the effects of sand ratio on the workability and the compressive of 7,28,60 d of coal gangue powder concrete.The results show that the influence of the sand ratio on the workability and compressive strength of coal gangue powder concrete is gentle when compared with the control group concrete.The compressive strength of coal gangue powder concrete is reduced, but the water-retaining property and adhe- siveness is improved.
出处
《混凝土》
CAS
北大核心
2016年第8期133-135,共3页
Concrete
基金
国家自然科学基金项目(51378247)
湖南省科技计划资助项目(2009Ck4020)
湖南省教育厅(JG2012B033)
关键词
砂率
煤矸石粉
泵送混凝土
坍落度
抗压强度
sand ratio
coal gangue powder
puming concrete
slumps
compressive strength
