A multiscale model for effective moduli of concrete incorporating ITZ water-cement ratio gradients, aggregate size distributions, and entrapped voids

被引：76

作者：

Nadeau, JC ^{[1
]}

机构：

[1] Duke Univ, Dept Civil & Environm Engn, Durham, NC 27708 USA

来源：

CEMENT AND CONCRETE RESEARCH | 2003年 / 33卷 / 01期

关键词：

interfacial transition zone; elastic moduli; micromechanics; modeling; mortar; concrete;

D O I：

10.1016/S0008-8846(02)00931-6

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper develops a model for the effective elastic properties of concrete, which is a function of the volume fractions, size distributions, and elastic properties of fine aggregate (FA) and coarse aggregate (FA) and entrapped voids. Furthermore, the model is a function of the overall water-cement ratio and specific gravity of cement. Explicitly modeled are the water-cement ratio gradients through the interfacial transition zone (ITZ), which, in turn, affect the variation of the cement paste elastic properties through the ITZ, while maintaining the total fractions of cement and water consistent with the overall water-cement ratio. The ITZ volume is also conserved. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：103 / 113

页数：11

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