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


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Study on concrete resistance to chloride salt corrosion underfull soaking and wet-dry cycling condition
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
concrete salt expansion chloride salt corrosion mechanical properties microstructure
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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