Effects of calcined perlite powder as a SCM on the strength and permeability of concrete
作者： A.A. Ramezanianpour , S. Mahmoud Motahari Karein , Payam Vosoughi , Amirreza Pilvar , Soroush Isapour
DOI: 10.1016/J.CONBUILDMAT.2014.05.086
关键词:
摘要: Abstract The use of Supplementary Cementitious Materials (SCMs) has been developed to reduce the environmental pollution and consumption precious natural resources in concrete industries. Furthermore, these materials usually reduces cost enhances durability concrete. Perlite, as a glassy volcanic rock, is easily accessible most parts world; besides, previous studies have demonstrated that Calcined Perlite Powder (CPP) could be used an effective SCM. However, few investigated impact it on different properties In this study, influence partial replacement Ordinary Portland Cement (OPC) with CPP compressive strength resistance chloride ions ingress investigated. For purpose, eight concretes by two w / b ratios three levels OPC were cast, cured, tested at 7, 28 91 days. Results reveal although insignificantly decreases concrete, permeability highly improved. Besides, was known surface resistivity simple non-destructive test, even containing CPP, reliably predict rapid migration coefficient
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