水泥石强度分析与孔隙率强度模型构造

Research on Relationship of Porosity-strength of Cement-based Materials and Construction of Porosity-strength

通过对水泥石中孔状态的分析,认为水泥石中孔已在三维空间出现渗流,孔的渗流会强烈影响水泥石宏观力学性能,据此建立了一个基于孔渗流的孔隙率强度模型,并设计实验对模型进行了验证。结果显示,在设计实验的65组数据中,该文建立的孔隙率强度模型拟合的相关性均优于目前国内外引用最多的3种孔隙率强度模型。

Based on pore characteristic analysis, the paper indicates that pore percolation process has appeared in three- dimensional space of cement paste and has big influence on paste strength. The paper constructs a kind of porosity - strength model based on pore percolation, and designs a group of experiments to detect the precision of the model. The results indicate that, the relativity of regression curve of the model constructed excels that of other three similar models quoted most currently in national and international in designed experiment.