氟石膏水泥与混凝土外加剂适应性研究  

Study on the adaptability of cement and concrete admixture in the production of fluorine gypsum

作　　者：陈建武 杨新亚[2] 徐松梅 CHEN Jianwu;YA NG Xinya;XU Songmei(Hunan Nonferrous Environmental Protection Building Material Co. Ltd.,Xiangxiang 411400, China;Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]湖南有色环保建材有限公司,湖南湘乡411400 [2]武汉理工大学,湖北武汉430070

出　　处：《新型建筑材料》2018年第5期26-29,共4页New Building Materials

基　　金：国家科学技术部科技型中小企业技术创新基金项目(14C26214302506)

摘　　要：对以氟石膏作水泥缓凝剂生产的水泥与混凝土泵送剂、减水剂等外加剂的适应性进行了研究,以凝结时间、流动度、经时损失、强度等为考察指标。研究结果表明,采用氟石膏作缓凝剂生产的水泥适应性比天然石膏生产的水泥更好,流动度经时损失更小。配制的混凝土坍落度正常,力学性能稳定,28 d抗压强度均超过设计强度25%以上。The adaptability of cement produced by using fluorine gypsum as a cement retarder and concrete pumping agent, water reducing agent and other admixtures was studied. The setting time, fluidity,loss over time,and strength were taken as index- es. The results of the study indicate that the adaptability of cement produced with fluoro-gypsum as retarder is better than that using natural gypsum as retarder,which has a smaller loss of fluidity over time. The prepared concrete has a normal slump and stable mechanical properties. The 28-day compressive strength exceeds the design strength by more than 25%.

关 键 词：氟石膏 缓凝剂 混凝土外加剂 适应性 

分 类 号：TU528.042[建筑科学—建筑技术科学]