Accelerated Life Test of Concrete in Chloride Environment

被引：8

作者：

Zhang, Wu-Man ^{[1
,2
]}

Ba, Heng-Jing ^{[3
]}

机构：

[1] Beihang Univ, Sch Transportat Sci & Engn, Beijing 100191, Peoples R China

[2] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

[3] Harbin Inst Technol, Sch Transportat Sci & Engn, Harbin 150006, Peoples R China

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 2011年 / 23卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Concrete; Accelerated life test; Chloride; Service life; SERVICE LIFE; DIFFUSION-COEFFICIENTS; STEEL CORROSION; REINFORCEMENT CORROSION; THRESHOLD LEVEL; MIGRATION TEST; PERFORMANCE; PREDICTION; MODEL; BEAM;

D O I：

10.1061/(ASCE)MT.1943-5533.0000182

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The accelerated life test of concrete in a chloride environment was carried out with chloride ion migration equipment. The time that elapsed before critical chloride concentration led to reinforcement corrosion was defined in this paper as the service life of concrete. The negative logarithm of chloride ion concentration was linear with the electrochemical potential. The chloride concentration in the anode chamber was an approximate linear relationship and increased with the testing time after a different stage. The service life of concrete in a natural diffusion test could be predicted by the accelerated curve. The results show that the service life of 10 mm concrete cover in the chloride environment is between 11.89 and 12.45 years. The experimental value is in good agreement with the Life-365 prediction. DOI: 10.1061/(ASCE)MT.1943-5533.0000182. (C) 2011 American Society of Civil Engineers.

引用

页码：330 / 334

页数：5

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