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Experimental Research on Performance of Anti-corrosion Coating Against Chloride Ion Ingress into Concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2009年02期
Page:
26-31
Research Field:
Publishing date:
2009-06-20

Info

Title:
Experimental Research on Performance of Anti-corrosion Coating Against Chloride Ion Ingress into Concrete
Author(s):
ZHAO Yu-xi;  DU Pan-feng;  JIN Wei-liang
Institute of Structural Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China
Keywords:
concrete;  anti-corrosion coating;  chloride ion;  ingress depth;  dry and wet cycling;  evaluation criterion
PACS:
TU375
DOI:
-
Abstract:
The performance of anti-corrosion coating against chloride ion ingress into concrete was studied by using both ASTM C1202 and dry and wet cycling method of salt solution. Based on the electricity pass ratios of ASTM C1202 test and 18 dry and wet cycling method tests for chloride penetration depths, an applicable engineering evaluation criterion was established to classify the performance of anti-corrosion coating against chloride ion ingress into concrete. The results show that the performance of anti-corrosion coating of concrete can be evaluated by electricity pass ratios from ASTM C1202 and chloride penetration depths from dry and wet cycling method. The dry and wet cycling method can reveal the degradation trend of anti-corrosion coating, while ASTM C1202 can not. The experimental work also shows that the mixed anti-corrosion coating is more effective than single anti-corrosion coating, and the film-forming coating is better than single penetration coating.

References:

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Last Update: 2009-06-20