粉煤灰细度对超高韧性水泥基复合材料性能的影响  

Effect of Fineness of Fly Ash on Properties of Engineered Cementitious Composites

作　　者：阚黎黎[1] 陶毅晨 朱瑨[1] 徐超[1] 曹号[1] KAN Lili;TAO Yichen;ZHU Jin;XU Chao;CAO Hao(School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, Chin)

机构地区：[1]上海理工大学环境与建筑学院,上海200093

出　　处：《材料科学与工程学报》2017年第6期934-939,共6页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51508329)

摘　　要：为了探究粉煤灰细度对超高韧性水泥基复合材料(ECC)性能的影响,设计对比三组由不同细度粉煤灰制作的ECC试件的抗拉及抗压试验性能,并进行了灰色关联度分析。结果表明:ECC的拉伸应变与粉煤灰细度之间不呈简单的线性关系;对于ECC的抗压强度,其主导因素并非是粉煤灰的细度,而是粉煤灰的活性。在特定条件下,通过改变粉煤灰的细度,可以在不影响基体强度的情况下改善ECC的延性。In order to study the fineness of fly ash on the properties of engineered cementitious composites（ECC）,the tensile and compressive properties of ECC specimens which were made of three different fineness fly ash were investigated and the grey relational analysis were also performed in this paper.The results show that the tensile strain of ECC does not have a simple linear relationship with the fineness of fly ash,and the fineness is also not the key factor to ECC compression performance,but all of them are dependant on the activity of fly ash.In certain conditions,by changing the fineness of fly ash,the ductility of ECC can be improved without affecting the strength of matrix.

关 键 词：超高韧性水泥基复合材料(ECC) 粉煤灰细度 灰色关联分析 

分 类 号：TQ172.715[化学工程—水泥工业]