Paper Key : IRJ************177
Author: Abhay Sharma,Rohit Sharma,Panshul Jamwal
Date Published: 04 Nov 2024
Abstract
This study explores the development of a sustainable fly ash (FA) and cold-setting resin composite with enhanced mechanical properties, designed specifically for construction applications where durability and environmental impact are key considerations. As fly ash is a byproduct of thermal power plants and widely available at low cost, its utilization addresses both economic and environmental issues associated with its disposal. However, fly ash in its raw form often lacks the necessary mechanical strength for direct application in construction. By incorporating a cold-setting resin, this study aims to overcome these limitations, leveraging FA as a primary component in a high-performance composite material.The study involved creating various compositions of FA and resin, with FA proportions ranging from 75% to 85% by weight, to determine the optimal balance for achieving maximum compressive strength, hardness, water resistance, and thermal insulation. Each composite was carefully tested for its physical and thermal properties, simulating the conditions required for construction materials. Results demonstrated that an FA composition of 85 wt.% achieved the highest compressive strength and hardness values, along with improved density and moderate water absorption. These qualities suggest that FA-resin composites could perform well as load-bearing materials in both structural and insulation applications.To gain a deeper understanding of the composite's structural characteristics, microstructural analyses were conducted using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). SEM imaging revealed uniform particle distribution and bonding within the composite, with minimal voids and fractures, which are essential for structural integrity. XRD analysis identified the presence of calcium silicate hydrate (CSH) and calcium aluminate silicate hydrate (CASH) phases in the cured samples, phases known to enhance the mechanical strength and durability of cementitious materials. FTIR provided insight into the chemical bonds within the composite, especially the formation of stable Si-O and Al-O bonds, which further contribute to the material's durability and thermal resistance.The findings indicate that incorporating FA as the primary component in construction materials can significantly reduce reliance on traditional clay and other natural resources, making FA-resin composites a viable eco-friendly alternative. Additionally, the low thermal conductivity of these composites makes them suitable for use in insulation, contributing to energy efficiency in buildings. By developing a composite that not only meets the mechanical demands of construction but also provides environmental benefits, this study highlights the potential of fly ash composites to advance sustainable building practices.Keywords: Fly Ash (FA), Cold-Setting Resin, Composite Materials, Mechanical Properties, Sustainable Construction, Environmental Impact, Compressive Strength, Hardness, Water Resistance, Thermal Insulation, Microstructural Analysis, Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Calcium Silicate Hydrate (CSH), Calcium Aluminate Silicate Hydrate (CASH), Eco-Friendly Materials, Energy Efficiency, Structural Integrity, Material Durability
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