Analysis of rheological characteristics of cement mortar based on microstructure Online publication date: Mon, 16-May-2022
by Huan Liu; Zhan-zhan Zheng; Quan-sheng Yang
International Journal of Materials and Product Technology (IJMPT), Vol. 64, No. 3/4, 2022
Abstract: In order to solve the problems of low precision of rheological characterisation and large error of characteristic analysis existing in traditional analysis methods of rheological properties of cement mortar, a new method of rheological properties analysis of cement mortar based on microstructure is proposed in this paper. According to Bingham fluid, power law fluid and Carson fluid equation, the rheological characteristics of cement mortar are obtained. According to the microstructure of cement mortar, the evaluation model of rheological properties of cement mortar is constructed. The internal structure relationship of cement mortar is determined by grey correlation method, and the damage variables of cement mortar are obtained to complete the rheological properties analysis of cement mortar. The experimental results show that the highest accuracy of the proposed method is about 95%, and the error of rheological property analysis is always less than 2%.
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