RESEARCH ON CONCRETE EXPANSION BEHAVIOR SUBJECTED TO CHLORIDE CORROSION AND ALKALI-AGGREGATE REACTION

Zhan Binggen; Sun Wei; Xu Zhongzi; Deng Min

doi:10.13204/j.gyjz200502021

Volume 35 Issue 2

Dec. 2014

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Zhan Binggen, Sun Wei, Xu Zhongzi, Deng Min. RESEARCH ON CONCRETE EXPANSION BEHAVIOR SUBJECTED TO CHLORIDE CORROSION AND ALKALI-AGGREGATE REACTION[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(2): 77-80. doi: 10.13204/j.gyjz200502021

Citation:

Zhan Binggen, Sun Wei, Xu Zhongzi, Deng Min. RESEARCH ON CONCRETE EXPANSION BEHAVIOR SUBJECTED TO CHLORIDE CORROSION AND ALKALI-AGGREGATE REACTION[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(2): 77-80. doi: 10.13204/j.gyjz200502021

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RESEARCH ON CONCRETE EXPANSION BEHAVIOR SUBJECTED TO CHLORIDE CORROSION AND ALKALI-AGGREGATE REACTION

doi: 10.13204/j.gyjz200502021

1.
1. Department of Material Science and Engineering,Southeast University Nanjing 210096;
2.
2. College of Material Science and Engineering,Nanjing Polytechnic University Nanjing 210018

Received Date: 2004-06-20
Publish Date: 2005-02-20

Abstract

Abstract

Concrete expansion test was conducted under the actions of sodium chloride and alkali-aggregate reaction,whose aim was to study the rule of alkali-aggregate reaction in the presence of sodium chloride.The concretes with high and low alkali contents were used for the test.1N NaOH, 1N NaOH+3% NaCl and 1N NaOH+7% NaCl were all used as the soak, and the ambient temperature of the reaction was 38℃.The results show that under all soaks the expansions of the high-alkali concrete are higher than those of the low-alkali concrete.At the period of low-alkali concrete, the expansion by 1N NaCl soak is higher than that by 1N NaOH, and a further lower expansion can be produced by NaOH+NaCl soak, yet at the late stage the results are exactly opposite; whereas at the early and late stages of high-alkali concrete, the expansion by 1N NaCl soak is lower than that by 1N NaOH, a further higher expansion can be produced by NaOH+NaCl soak.
- chloride corrosion,
- alkal-iaggregate reaction,
- concrete,
- reliability

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References(17)

References

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