PROPERTIES OF PORTLAND CEMENT-SILICA FUME PASTES .1. POROSITY AND SURFACE-PROPERTIES

被引：64

作者：

FELDMAN, RF

CHENGYI, H

机构：

[1] Natl Research Council of Canada, Div, of Building Research, Ottawa, Ont,, Can, Natl Research Council of Canada, Div of Building Research, Ottawa, Ont, Can

来源：

CEMENT AND CONCRETE RESEARCH | 1985年 / 15卷 / 05期

关键词：

CEMENT - Additives - CONCRETE - Porosity - CONCRETE AGGREGATES - Fly Ash - MATERIALS SCIENCE;

D O I：

10.1016/0008-8846(85)90141-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Studies of portland cement-silica fume mortars show that the sand-matrix interface has a definite effect on pore-size distribution, porosity, and mechanical properties. Further work has demonstrated that the hydration rate of these mortars, in relation to that of pastes, is affected and that freeze-thaw resistance is improved by the addition of silica fume. The objective is to gain a basic understanding of the structure of the pastes and clarify these observations. Several surface chemical properties of the system, a portland cement-silica fume blend, during the hydration reaction in paste form were measured.

引用

页码：765 / 774

页数：10