摘要
介绍了水泥基材料受限收缩的试验方法与影响水泥基材料收缩的因素,采用限制收缩中的轴向约束试验方法,研究了不同矿物掺合料和水胶比的水泥基材料受限开裂敏感性。结果表明较大的水胶比、较高的磨细矿渣和硅灰掺量会增大水泥浆体的开裂敏感性,粉煤灰对水泥浆体的限制收缩开裂敏感性具有降低作用。
The influence factors and testing methods of restricted shrinkage of cement-based material are introduced. The cracking sensitivity of cement-based material with different mineral admixtures and the water to binder ratio is studied by the restricted shrinkage testing. The results indicate that , the water to binder ratio and amount of ground blast furnace slag or silica fume increase the sensitivity of cracking of cement paste, but the fly ash reduces the cracking sensitivity.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2014年第2期406-410,共5页
Bulletin of the Chinese Ceramic Society
基金
国家科技支撑项目(2011BAE27B04-7)
教育部“新世纪优秀人才支持计划”项目(NCET-12-0605)
北京自然基金重大课题(8100001)
973计划资助项目(2009CB23201)
关键词
水泥基材料
受限收缩
开裂敏感
水胶比
矿物掺合料
cement-based material
limiting the shrinkage
the cracking sensitivity
water-binder ratio
mineral admixture
