The influence of accelerated curing on the properties used in the prediction of chloride ingress in concrete using a Nernst-Planck approach

被引：10

作者：

Bu, Y. ^{[1
]}

Spragg, R. ^{[2
]}

Villani, C. ^{[2
]}

Weiss, J. ^{[1
,2
]}

机构：

[1] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA

[2] Purdue Univ, Sch Civil Engn, W Lafayette, IN 47907 USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 66卷

关键词：

Concrete; Accelerated aging; Pore-size distribution; Transport property; Service life prediction; HEAT-TREATMENT; CEMENT; TEMPERATURE; SHRINKAGE; HYDRATION; SILICATE; BEHAVIOR; PASTES;

D O I：

10.1016/j.conbuildmat.2014.04.138

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper examines the use of accelerated aging as an expedited method to determine the material property inputs for service life modeling. When the samples are cured in saturated lime water, it is noticed that accelerated aged specimens at 50 +/- 2 degrees C consistently showed higher porosity, a greater chloride diffusion coefficient, and greater permeability. Service life predictions modeled using material properties of specimens when aging was accelerated could result in the prediction of corrosion initiation at a time that was up to 30% earlier than using properties of conventionally cured specimens at the same equivalent age. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：752 / 759

页数：8

共 42 条

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