Influence of weather and global warming in chloride ingress into concrete: A stochastic approach

被引：86

作者：

Bastidas-Arteaga, E. ^{[1
,2
]}

Chateauneuf, A. ^{[3
]}

Sanchez-Silva, M. ^{[2
]}

Bressolette, Ph. ^{[3
]}

Schoefs, F. ^{[1
]}

机构：

[1] Univ Nantes, CNRS, GeM Res Inst Civil & Mech Engn, UMR 6183, F-44322 Nantes 3, France

[2] Univ Los Andes, Dept Civil & Environm Engn, Bogota, Colombia

[3] Univ Clermont Ferrand, LaMI, F-63174 Aubiere, France

来源：

STRUCTURAL SAFETY | 2010年 / 32卷 / 04期

关键词：

Global warming; Stochastic modeling; Reliability; Chloride ingress; Corrosion; Reinforced concrete; INDUCED CORROSION; REINFORCED-CONCRETE; SATURATED CONCRETE; CLIMATE-CHANGE; RELIABILITY; DIFFUSION; ADSORPTION; ISOTHERMS; BINDING; PASTES;

D O I：

10.1016/j.strusafe.2010.03.002

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Reinforced concrete (RC) structures are subjected to environmental actions affecting their performance, serviceability and safety Among these actions, chloride ingress leads to corrosion and has been recognized as a critical factor reducing service life of RC structures This paper presents a stochastic approach to study the influence of weather conditions and global warming on chloride ingress into concrete The assessment of chloride ingress is carried out on the basis of a comprehensive model that couples the effects of convection, chloride binding, concrete aging, temperature and humidity. A simplified model of temperature and humidity including seasonal variations and global warming is also proposed in this work Three scenarios of global warming are defined based on. gas emissions, global population growth, introduction of new and clean technologies and use of fossil sources of energy The proposed approach is illustrated by a numerical example where the preliminary results indicate that climate changes may yield to significant lifetime reductions (C) 2010 Elsevier Ltd All rights reserved

引用

页码：238 / 249

页数：12

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