EXPERIMENTAL STUDY ON THE ANTI-CHLORIDE ION PERFORMANCE OF CONCRETE IN SALT SPRAY ENVIRONMENT

Wang Jianmin; Liu Guanguo; Lei Xiao; Li Di; Ma Hu

doi:10.13204/j.gyjz201311020

Volume 43 Issue 11

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2013 > 43(11): 89-91,125

Wang Jianmin, Liu Guanguo, Lei Xiao, Li Di, Ma Hu. EXPERIMENTAL STUDY ON THE ANTI-CHLORIDE ION PERFORMANCE OF CONCRETE IN SALT SPRAY ENVIRONMENT[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 89-91,125. doi: 10.13204/j.gyjz201311020

Citation:

Wang Jianmin, Liu Guanguo, Lei Xiao, Li Di, Ma Hu. EXPERIMENTAL STUDY ON THE ANTI-CHLORIDE ION PERFORMANCE OF CONCRETE IN SALT SPRAY ENVIRONMENT[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 89-91,125. doi: 10.13204/j.gyjz201311020

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EXPERIMENTAL STUDY ON THE ANTI-CHLORIDE ION PERFORMANCE OF CONCRETE IN SALT SPRAY ENVIRONMENT

doi: 10.13204/j.gyjz201311020

1.
1. College of Civil and Transportation Engineering,Hohai University,Nanjing 210098,China;
2.
2. Jiangsu Transportation Ｒesearch Institute Co. Ltd,Nanjing 211112,China

Received Date: 2013-08-30
Publish Date: 2013-11-20

Abstract

Abstract

The coastal concrete structures in the salt spray environment are suffered from chloride ion,which produces greatest risk to the structural durability and safety and leads to the destruction of the structure just within the design reference period. Based on the construction of high-grade highway structures in coast of Jiangsu province,the effect of the content of mineral admixtures on the durability of concrete under the salt spray environment was studied.Coastal environment was simulated by salt spray wet and dry circle. And five concrete specimens with different contents of fly ash and slag were analyzed in the corrosion test. The results show that the mineral admixtures in concrete can effectively fill the concrete pores,reduce porosity and improve the ability of concrete to resist the chloride ions ingress. When the fly ash and slag account for 25% of total cementing materials respectively,the diffusion coefficient of chloride ion of the sample is the smallest,which better performance of resistance to chloride ion erosion.
- salt spray environment,
- concrete,
- mineral admixtures,
- diffusion of chloride ion,
- durability

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References(15)

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