Pore Size Distribution in Cement Pastes in Relation to Freeze-Thaw Distress

被引：13

作者：

Zhang, Jiake ^{[1
]}

Taylor, Peter C. ^{[2
]}

机构：

[1] Hunan Univ, Coll Civil Engn, Changsha 410082, Hunan, Peoples R China

[2] Iowa State Univ, Natl Concrete Pavement Technol Ctr, Ames, IA 50010 USA

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 2015年 / 27卷 / 03期

关键词：

Pore size distribution; Freeze and thaw; Cement; Freezing and thawing; Mercury intrusion porosimetry; MERCURY INTRUSION POROSIMETRY; IMAGE-ANALYSIS;

D O I：

10.1061/(ASCE)MT.1943-5533.0001053

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The pore size distributions of hardened cement pastes were studied in the research reported in this paper in order to investigate whether there was a relationship with the risk of freeze thaw related distress. Mercury intrusion porosimetry (MIP) and cyclic freezing and thawing tests were used to assess cement pastes with different water-to-cement (w/c) ratios and supplementary cementitious materials. Typical pavement mixtures contain a range of pore sizes similar to those in aggregate prone to D-cracking. Such pore sizes are reported to resist drying, thus they may increase saturation and so the risk of damage under freezing and thawing.

引用

页数：6

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