Durability Test On Concrete With Partial Replacement Of Cement With Metakaolin And Silica-Fume
Author(s):
HARINI P, Dr.S.Sundari, Dr.G.Arunkumar
Keywords:
cement replacement, Metakaolin, silica fume, durability test
Abstract
The partial replacement of conventional Portland cement with supplementary cementitious materials (SCMs) such as metakaolin and silica fume has emerged as a promising strategy to address the sustainability and performance challenges in the construction industry. This research explores the effects of incorporating metakaolin and silica fume, individually and in combination, as partial replacements for cement in concrete mixtures. The results demonstrate that the addition of metakaolin and silica fume leads to improved compressive and flexural strengths, especially at early ages. These SCMs also enhance the durability of concrete by reducing permeability and enhancing resistance to aggressive chemical attacks. Achieving the ideal balance between enhanced characteristics and practical application requires workability considerations and mix optimisation. Additionally, silica fume and metakaolin used together have a synergistic impact that improves strength and durability even more than when used alone. This result highlights the potential for a more environmentally friendly and high-performing concrete by carefully mixing various SCMs. The research emphasises the environmental advantages of less cement consumption in the context of sustainability, helping to cut carbon emissions and support resource conservation. Overall, this study provides insightful information about the partial substitution of cement with metakaolin and silica fume, demonstrating their potential to improve the qualities of concrete while promoting sustainability goals. These findings have implications for the construction industry, encouraging the adoption of more sustainable and resilient concrete mixtures in future infrastructure projects.
Article Details
Unique Paper ID: 161731

Publication Volume & Issue: Volume 10, Issue 6

Page(s): 129 - 135
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