Percolation of capillary pores in hardening cement pastes

被引：139

作者：

Ye, G ^{[1
]}

机构：

[1] State Univ Ghent, Dept Struct Engn, Magnel Lab Concrete Res, B-9052 Ghent, Belgium

来源：

CEMENT AND CONCRETE RESEARCH | 2005年 / 35卷 / 01期

关键词：

cement paste; porosity; permeability; percolation; modelling;

D O I：

10.1016/j.cemconres.2004.07.033

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a study of the pore structure and permeability of hardening cement pastes. Cement pastes with water/cement (w/c) ratio 0.4, 0.5 and 0.6 from 1 up to 28 days of age were tested with mercury intrusion porosimetry. In parallel, the water permeability was measured. With the help of a numerical simulation model, correlations between pore structure and permeability were found. Water permeability is related more to the pore size distribution and to the effective porosity than to the total porosity of the pastes. No depercolation of the capillary pores was evident neither in the experiments nor in the numerical simulations during the first 28 days after casting. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：167 / 176

页数：10

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