INFLUENCE OF SELF-HEALING ON CHLORIDE ION INGRESS IN CRACKED CONCRETE

Yan Yongdong; Jin Weiliang; Wang Hailong

doi:10.13204/j.gyjz201105002

Volume 41 Issue 5

Dec. 2014

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Yan Yongdong, Jin Weiliang, Wang Hailong. INFLUENCE OF SELF-HEALING ON CHLORIDE ION INGRESS IN CRACKED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(5): 6-9. doi: 10.13204/j.gyjz201105002

Citation:

Yan Yongdong, Jin Weiliang, Wang Hailong. INFLUENCE OF SELF-HEALING ON CHLORIDE ION INGRESS IN CRACKED CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(5): 6-9. doi: 10.13204/j.gyjz201105002

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INFLUENCE OF SELF-HEALING ON CHLORIDE ION INGRESS IN CRACKED CONCRETE

doi: 10.13204/j.gyjz201105002

1.
Zhejiang University,Hangzhou 310058,China

Received Date: 2010-05-25
Publish Date: 2011-05-20

Abstract

Abstract

Cracking and self-healing are inevitable phenomenon for concrete structures.Three types of concrete specimens with multi-pre-cracks are designed for the test.Then the specimens were exposed to 6% NaCl solution for 40 d and 160 d.At last the self-healing area fraction in cracks' surface and chloride concentration in concrete near cracks were detected by RCT methods.Results show that self-healing area is increased with exposure time and the value of W/C, it decreases the crack surface and chloride ion in the crack, which makes the chloride ion ingress into concrete through crack surface be less than that through exposed surface.
- concrete,
- pre-crack,
- chloride ion,
- self-healing

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References

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