Effect of Chloride and Sulphate Attack in Concrete Containing Biomass Ash and Silica Fumes

Concrete is unique among the foremost multi-purpose building materials generally used for nearly an era now. It was designed to be durable and essential requiring only minor repair, but in severely destructive atmospheres, it needs specific improvements. A destructive condition causes concrete structures to degrade; thus, engineers estimate the loss in advance to take appropriate precautions to ensure concrete buildings' required durability. The compounds contained in cement concrete are attacked by various salt solutions in most concrete constructions. This study examined how chloride and sulphate attacks of varied severity affected the compressive strength of concrete containing biomass ash and silica fumes after 28 days in normal water and 6 months in a salt solution. The results demonstrate that the durability of concrete including biomass ash and silica fumes improves as the percentage of cement added by biomass ash and silica fumes grows to 15% and 7.5%, then progressively declines as the percentage of biomass ash and silica fumes with cement increases. Also, because of its later age strength, the compressive strength of biomass ash and silica fume concrete increases with age, so the durability of concrete improves when biomass ash and silica fumes are added as a partial addition of cement. During this study, the compressive strength and rapid chloride permeability test of biomass ash and silica fume concrete suffered less chemical damage than standard concrete when exposed to destructive situations such as sulphate and chloride attack. As proof, this scanning electron morphology and its spectrum have been analysed.