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Study on concrete resistance to chloride salt corrosion underfull soaking and wet-dry cycling condition(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2017年05期
Page:
666-
Research Field:
Publishing date:

Info

Title:
Study on concrete resistance to chloride salt corrosion underfull soaking and wet-dry cycling condition
Author(s):
Li Jun 12Gao Peiwei 1Liu Hongwei 12Zhang Lifang1
1.College of Aerospace Engineering,Nanjing University of Aeronautic and Astronautics,Nanjing 210016,China; 2.Civil Engineering College,Yancheng Institute of Technology,Yancheng 224051,China
Keywords:
concrete salt expansion chloride salt corrosion mechanical properties microstructure
PACS:
TU528
DOI:
10.14177/j.cnki.32-1397n.2017.41.05.020
Abstract:
The salt expansion damage characteristics of concrete are studied using test methods of the full soaking and the wet-dry cycling.The research result shows that,after the wet-dry cycling of the chloride solution with different chloride concentrations,the compressive strength of concrete decreases slightly and the flexural strength decreases obviously with the wet-dry cycling age increasing.The microscopic analysis also shows that,the solution of the chloride snow-melting agent with the high chloride concentration has more serious effect on the concrete erosion under the wet-dry cycling condition,and the full soaking has little effect on the strength of concrete.

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