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    Permeable epoxy coating with reactive solvent for anticorrosion of concrete

    Year: 2018

    Journal: Prog. Org. Coat., Volume 117, APR, page 29–34

    Authors: Zhang, Guoliang; Xie, Qingyi; Ma, Chunfeng; Zhang, Guangzhao

    Organizations: National Natural Science Foundation of China [21234003, 51303059, 51573061, 51673074]

    Keywords: Concrete; Epoxy; Reactive solvent; Anticorrosion; Wettability

    Concrete usually suffers from deterioration caused by ions and water soaking in the cracks, pores and other defects. We have prepared epoxy solution with carbonyl solvent, where the solvent and epoxy can react with amine (curing agent) to form network. The epoxy solution has remarkable wettability on concrete surface, and it can even permeate into the pores or defects in concrete. After coating with the epoxy solution, the strength of the concrete can be improved to above 9.3 MPa. Particularly, the coated concrete exhibits excellent anticorrosion performance with total charge passed in chloride permeability as low as 130 C.
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