Influence of Permeated Crystalline Materials on Durability of Hydraulic Concrete

Abstract:

Influence of permeated crystalline materials on durability of hydraulic concrete was studied by impermeability test methods after sulfate attack and freeze-thaw cycling. Microstructure of concrete was analyzed and characterized with SEM and MIP. The results showed that impermeability pressure of concrete with permeated crystalline materials was more than that of standard concrete after sulfate attack and freeze-thaw cycling. Permeated crystalline materials improved on performance of concrete for sulfate attack and freeze-thaw, because that microstructure of interfacial transition zone of concrete with permeated crystalline materials was compact and its pore size distribution was more than that of standard concrete. There were more content of less harmful pore with diameter 20nm~100nm and less content of harmful pore with diameter100nm~200nm and more than 200nm in concrete with permeated crystalline materials than in standard concrete.

• Periodical: Advanced Materials Research (Volumes 450-451)
• Pages: 1522-1527
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.450-451.1522
• Online since: January 2012
• Authors: Ke Liang Wang, Ting Zheng Hu, Ling Liu
• Keywords: Durability of Concrete, Impermeability of Concrete, Microstructure, Permeated Crystalline Materials

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