中低热微膨胀水泥混凝土性能试验研究  

The experimental study on performance of expansive cement concrete

作　　者：王述银[1] 董维佳[1] 王迎春[1] 严建军[1] 

机构地区：[1]长江科学院材料结构所,湖北武汉430010

出　　处：《水利学报》2000年第4期24-28,共5页Journal of Hydraulic Engineering

基　　金：国家自然科学基金!委员会;中国长江三峡工程开发总公司资助

摘　　要：本文应用新研制的中低热膨胀水泥拌制混凝土 ,进行混凝土的拌合物性能、力学性能、变形性能、热学性能和耐久性试验 ,以确定该水泥能否满足水电工程大体积混凝土的要求 .试验结果表明 ,混凝土的上述性能基本满足设计要求 ,尤其是它的膨胀性能明显优于单一的氧化镁膨胀或硫铝酸钙膨胀 ,具有明显的技术优势和经济效益 .In this paper, the mixture properties, mechanical performances, distortion, calorific performance and durability of concrete from two types of expansive cement are experimentally studied in order to confirm if these cements are suitable for mass concrete dam. The results show that the concrete performance accord with the needs of mass concrete, especially, its expansion performance is evidently better than that of cements simply added with magnesia or ettringite.

关 键 词：微膨胀水泥 混凝土 氧化镁 疏铝酸钙 膨胀率 

分 类 号：TU528.55[建筑科学—建筑技术科学] TV431.9[水利工程—水工结构工程]