大流动性水泥净浆与砂浆流变参数的测定方法

New Method to Evaluate Rheological Behavior of High Fluidity Cement Paste and Mortar

设计了U型流动仪以测定大流动性水泥净浆与砂浆的流变学特性 ,并通过改变水灰比、减水剂掺量、骨料与浆体的质量比等参数 ,检验了该流动仪的有效性、敏感性及其适用范围 .结果表明 ,U型流动仪适用于测定大流动性水泥净浆与砂浆的流变参数 .

A new U type flow meter was used to evaluate the rheological behavior of cement paste and mortar with high fluidity, and the experiment was mainly carried on the flow time of the mortar. By changing water cement ratio, the content of superplasticizer and the mass ratio of the aggregate to the paste, the validity, sensitivity and scope of this method were tested. A new method to evaluate rheological behavior of high fluidity cement paste and mortar is proposed in this paper.