The effect of cement paste volume and w/c ratio on shrinkage strain, water absorption and compressive strength of high performance concrete

被引：101

作者：

Piasta, Wojciech ^{[1
]}

Zarzycki, Bartlomiej ^{[1
]}

机构：

[1] Kielce Univ Technol, Fac Civil Engn & Architecture, Tysiaclecia PP 7, PL-25314 Kielce, Poland

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 140卷

关键词：

High-performance concrete; Cement paste volume; w/c ratio; Water absorption; Compressive strength; Shrinkage strain; INTERFACIAL TRANSITION ZONE; AGGREGATE;

D O I：

10.1016/j.conbuildmat.2017.02.033

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Shrinkage strain, compressive strength and water absorption of high performance concrete (HPC) are estimated to high accuracy with linear equations using the w/c ratio and paste volume as variables. A paste volume reduction, thus an increase in coarse aggregate fraction, improves the HPC properties. These changes most likely result from: 1) adsorption of water on a greater surface of aggregate, leading to bulk paste desiccation and densifying and reduction in actual w/c ratio and width of aggregate-cement paste interfacial transition zone; 2) beneficial influence of larger volume of coarse aggregates produced from rocks of high strength and low water absorption. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：395 / 402

页数：8