高钛重矿渣混凝土的工作性能研究  

Research on the working performance of high titanium heavy slag concrete

作　　者：江海民[1] 牟廷敏[2] 丁庆军[1] 

机构地区：[1]武汉理工大学教育部硅酸盐重点实验室,湖北武汉430070 [2]四川省交通厅公路规划勘察设计研究院,四川成都610041

出　　处：《混凝土》2011年第5期125-127,共3页Concrete

基　　金：国家重点基础研究发展计划(973计划)(2009CB23201)

摘　　要：高钛重矿渣是一种强度高、化学稳定性好和多孔形貌的石质材料,利用高钛重矿渣为集料配制高性能泵送混凝土,研究高钛重矿渣预湿时间、渣粉含量及减水剂组成对混凝土性能的影响。试验结果表明：预湿时间对混凝土工作性能及体积稳定性影响明显,预湿时间12 h,混凝土物理力学性能最佳,渣粉含量在10%~15%之间,可以明显改善混凝土的工作性能与包裹性能,采用复配高性能外加剂能够有效改善混凝土的工作性能。High titanium heavy slag is a kind of high strength,chemical stability and morphology of porous stone material.The effect of pre-wet time,slag powder content and the composition of water reducing agent on the performance of concrete that prepared by using the high titanium heavy slag as aggregate is researched.The results show that pre-wet time are obvious impacted on the working performance of concrete and the volume stability.The physical and mechanical properties of concrete are best when the pre-wet time reached 12h.As the slag powder content are between 10% and 15%,the working and binding performance of concrete can be effectively improved.And the use of complex high-performance concrete admixtures can improve the working performance of concrete.

关 键 词：高钛重矿渣 泵送 工作性能 收缩率 

分 类 号：TU528.53[建筑科学—建筑技术科学]