水溶出法测定混凝土碱含量的有效性研究  

Study on the Effectiveness of Water Extraction Method for Determination of Alkali Content in Concrete

作　　者：黄姣 刘清波 尹帮达 HUANG Jiao;LIU Qing-bo;YIN Bang-da(Hunan Hydro&Power Design Institute,Changsha 410007,China)

机构地区：[1]湖南省水利水电勘测设计研究总院,长沙410007

出　　处：《建材世界》2020年第6期33-35,共3页The World of Building Materials

基　　金：湖南省水利科技项目(湘水科计[2017]230-23).

摘　　要：采用不同计算总碱量的配合比配制混凝土,在不同龄期采用水溶出法检测混凝土碱含量,探讨龄期和掺粉煤灰对水溶出法测得的碱含量的影响,以及水溶出法测得的碱含量与计算碱含量的关系,分析水溶出法测定混凝土碱含量的有效性,为进一步寻找混凝土有效碱测定方法提供支持。Concrete with different total alkali content calculated from the mix proportions were prepared in this paper,while the water-soluble alkali concentration of which was detected by the water extraction method at different ages.The influence of age and fly ash on the alkali concentration measured by water extraction method and the relationship between the alkali concentration measured by water extraction method and the calculated alkali content were discussed.Besides,the effectiveness of water extraction method in determining the alkali concentration of concrete was analyzed,which provides support for the further search for the testing method of effective alkali concentration in concrete.

关 键 词：有效碱 水溶出法 计算碱含量 

分 类 号：TU528[建筑科学—建筑技术科学]