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基于酸雨和碳化耦合作用的混凝土耐蚀性能分析

尹健 龚胜辉 张贤超 庞绮玲 宋卫民

铁道科学与工程学报2011,Vol.8Issue(4):28-34,7.
铁道科学与工程学报2011,Vol.8Issue(4):28-34,7.

基于酸雨和碳化耦合作用的混凝土耐蚀性能分析

Analysis of concrete corrosion resistant performance based on the coupled action of acid rain and carbonization

尹健 1龚胜辉 1张贤超 1庞绮玲 1宋卫民1

作者信息

  • 1. 中南大学土木工程学院,湖南长沙410075
  • 折叠

摘要

Abstract

With environment deterioration, the harm of acid rain on the durability of concrete has been paid more and more attention. By optimizing of mix design, this paper researched influence of the variety and content of mineral admixtures on concrete properties, and by variance analysis and regression of extensive quantity of experimental data, the carbon and corrosion law of concrete in acid rain and carbon coupling conditions was studied. The results show that the concrete strength decreases when the concrete is eroded in coupling conditions of acid rain and carbon corrosion, while the depth of neutralization increases with age. For different erosion pattern, the influence law is; S mode <ST mode <TS mode <T mode. Within the eroded specimen, pH value was high in the middle, while it was low on the surface, and the pH value of the same depth decreased when the erosion cycle increased.

关键词

酸雨/碳化/混凝土/耦合作用/耐蚀性能

Key words

acid rain/ carbonation/ concrete/ coupling effect/ corrosion resistance

分类

机械制造

引用本文复制引用

尹健,龚胜辉,张贤超,庞绮玲,宋卫民..基于酸雨和碳化耦合作用的混凝土耐蚀性能分析[J].铁道科学与工程学报,2011,8(4):28-34,7.

基金项目

中央直属高校前沿研究计划重点项目(2010DXPY010) (2010DXPY010)

铁道科学与工程学报

OA北大核心CSCDCSTPCD

1672-7029

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