掺偏高岭土活性粉末混凝土的试验研究  

The Experimental Research on Metakaolin Reaction Power Concrete

作　　者：郑居焕[1] 

机构地区：[1]福建工程学院土木工程系,福州350007

出　　处：《建筑科学》2008年第5期47-49,46,共4页Building Science

基　　金：福建省自然科学基金计划资助项目(2007J0163);福建工程学院科技计划项目(GY-Z0546)

摘　　要：针对我国自然资源的现状,探讨采用化学组成与硅灰相似的偏高岭土配置活性粉末混凝土(RPC),进行了约150组掺偏高岭土活性粉末混凝土的立方抗压强度试验。结果表明:偏高岭土性能与硅灰相近,能较明显提高混凝土的抗压强度,同时偏高岭土与其它活性矿物掺合料能产生良好的复合效应,可以部分或全部替代硅灰配制活性粉末混凝土;通过调整配合比,用细砂亦可配制出强度较高的活性粉末混凝土。Be aimed at the current natural resources in China,the thesis puts forward the proportioning formula of RPC by using metakaolin as the main ingredient,a material sharing similar functions of silica fume.Based on the cubic compressive strength tests of 150 groups of RPC materials mixed with metakaolin,the test results prove that the Metakaolin,sharing the similar functions of silica fume,can obviously increase the compressive strength of the concrete.It can partly or completely replace silica fume as a good ingrediant for compounding RPC.By adjusting the formula index,the fine sand can also be used to compound the Metakaolin RPC with good strength.

关 键 词：偏高岭土 活性粉末混凝土 抗压强度 

分 类 号：TU528.44[建筑科学—建筑技术科学]