A Comprehensive Meta-Analysis of Recent Advances in Fly Ash Utilization for Improving Compressive Strength of OPC Grade 43 Concrete
Keywords:
Fly ash, OPC grade 43 concrete, Compressive strength, SustainabilityAbstract
This review paper offers a comprehensive analysis of recent research on the use of fly ash as an additive for enhancing the compressive strength of OPC grade 43 concrete. The study examines multiple experimental investigations that have explored the effects of fly ash on various aspects of concrete, including its microstructure, mechanical properties, and sustainability. The research indicates that adding fly ash can lead to several significant benefits, such as increased compressive strength, reduced porosity, and improved interlocking between particles. Studies show that fly ash can significantly improve the mechanical properties of concrete, making it more durable and resistant to damage. Additionally, the use of fly ash in construction materials leads to more sustainable practices by reducing the carbon footprint of the industry. This paper presents valuable insights into the use of fly ash in enhancing concrete properties, which can be useful for both researchers and practitioners in the construction industry. By summarizing the latest advancements in fly ash utilization, the meta-analysis can provide an overview of the potential benefits of incorporating fly ash in future construction projects. Researchers can use this information to develop new and improved building materials that incorporate fly ash and optimize its benefits. The study also emphasizes the importance of sustainable construction practices and how fly ash can contribute to reducing waste generation and promoting the reuse of industrial byproducts. Concrete is a versatile construction material and is an integral composite material in modern building construction. No construction is feasible without the use of concrete. Cement is the main constituent of concrete which is the major binding material. Manufacturing of cement imbibes lot of energy consumption and release of carbon emissions. So secondary cementitious material is used. Fly ash which is abundantly available as by-product from thermal plants and is to reduce the problem of pollution due to its disposal on land in ash ponds, fly ash is made suitable for ordinary Portland cement due to its pozzolanic properties. The percentage of fly ash used in concrete varies with grades of cement, temperature, moisture content, heat of hydration, age of concrete etc. For different mix of concrete with fly ash, compressive strength decreases with increases in percentage of fly ash and it was found that for 15%-30% the value of compressive strength increases for 28 days and for higher percentage it goes on decreasing . The study highlights the advantages of using fly ash in construction materials and stresses the importance of sustainable practices in the construction industry. This paper can be beneficial to anyone interested in developing more sustainable and durable building materials, providing valuable insights into the latest research and advancements in fly ash utilization.
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