Probabilistic considerations on the effect of specimen size on the critical chloride content in reinforced concrete

被引：60

作者：

Angst, Ueli ^{[1
]}

Ronnquist, Anders ^{[1
]}

Elsener, Bernhard ^{[2
,3
]}

Larsen, Claus K. ^{[1
,4
]}

Vennesland, Oystein ^{[1
]}

机构：

[1] NTNU Norwegian Univ Sci & Technol, Dept Struct Engn, N-7491 Trondheim, Norway

[2] ETH, Inst Bldg Mat IFB, ETH Honggerbreg, CH-8093 Zurich, Switzerland

[3] Univ Cagliari, Dept Inorgan & Analyt Chem, I-09142 Cagliari, Italy

[4] Norwegian Publ Rd Adm, N-0033 Oslo, Norway

来源：

CORROSION SCIENCE | 2011年 / 53卷 / 01期

关键词：

Steel reinforced concrete; Pitting corrosion; THRESHOLD VALUES; PITTING CORROSION; STEEL; DEPASSIVATION; MECHANISM;

D O I：

10.1016/j.corsci.2010.09.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A probabilistic model was used to predict the critical chloride content (C-crit.) for reinforcement corrosion as a function of specimen size The specimen size is likely to be a reason for the large scatter of C-crit values as well as for the high threshold levels often observed in laboratory setups Regarding test methods It is discussed that the common combination of small specimens and low numbers of parallel samples results in poor reproducibility If experimental data is to be used for service life modelling the geometrical dimensions of the specimens on which C-crit was measured have to be taken into account (C) 2010 Elsevier Ltd All rights reserved

引用

页码：177 / 187

页数：11

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