Durability Study on Concrete with Partial Replacement of Cement using Bentonite and Silica-Fume
Author(s):
SHRUTHI H, Dr.S.Sundari, Dr.G.Arunkumar
Keywords:
partial replacement by weight of cement, Bentonite, silica fume, durability test, chemical attacks
Abstract
Concrete, one of the most widely used construction materials globally, is known for its environmental impact due to the high carbon footprint associated with cement production. By looking at a partial replacement of cement with two extra components, bentonite and silica fume, this study investigates an environmentally beneficial option. Bentonite, a naturally occurring clay mineral, and silica fume, an industrial waste, both have the ability to improve the characteristics of concrete. In this study, a variety of concrete mixtures were created using different amounts of bentonite and silica fume in place of cement as a partial substitution by the weight of cement. To assess these concrete mixes mechanical, durability properties and environmental sustainability laboratory testing was done. The study evaluated variables like water absorption, flexural strength, compressive strength, and resistance to aggressive chemical attacks. The results of this study showed that concrete mixtures with improved mechanical strength and durability properties can be produced by partially replacing cement with bentonite and silica fume. By adding bentonite, the material became easier to work with, had less permeability, and was more resistant to attacks from sulphates and chlorides. On the other hand, silica fume resulted in decreased porosity and enhanced compressive and flexural strengths. In conclusion, a potential path to create environmentally friendly and sustainable concrete mixtures is the partial replacement of cement with bentonite and silica fume. These combinations have stronger mechanical characteristics and longer endurance while lowering the environmental impact of cement production. This research underscores the potential for eco-conscious construction practices and paves the way for the adoption of alternative materials in the quest for sustainable infrastructure development.
Article Details
Unique Paper ID: 161730
Publication Volume & Issue: Volume 10, Issue 6
Page(s): 123 - 128
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