Durable Glass Fiber Reinforced Concrete with Supplimentary Cementitious Materials

Authors

Civil Engineering Department, NIT, Raipur, India

Abstract

Durability of concrete structure in marine environments is a big issue for many decades due to chloride attack. Chloride penetrates the concrete structure and accelerates the corrosion process of reinforcement which decreases the life of those structures. Also shrinkage cracks in concrete play main role for chloride penetration through concrete surface.  Many researchers tried to find easy and economical ways to obtain durable concrete in such marine region by use of supplementary cementitious material with proper curing regime. Also use of fiber in concrete may arrest the shrinkage cracks, decreasing the chloride permeability and increasing the durability of concrete. Durability of concrete with glass fiber and by replacement of cement and sand partially by supplementary cementitious material such as fly ash and pond ash, respectively is measured by conducting shrinkage test, bulk electrical resistivity, SEM and ultrasonic pulse velocity test. Based on various test result present research proposes an economical durable concrete with desired compressive strength by use of glass fiber and supplementary cementitious material.

Keywords


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