Enhancing the Characteristics of Fly Ash Based Composite Material
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 7
Abstract
Coal is one of the primary sources of energy all over the world. About 70% of the total energy consumption in the country is fulfilled by coal. India has one of the largest reserves of coal in the world. Indian coal has high ash content and low calorific value. The energy derived from coal in India is about twice that of energy derived from oil, as against the world, where energy derived from coal is about 30% lower than energy derived from oil. Thermal power stations produce large quantities of fly ash. High ash content coal contributes to large volumes of fly ash. The current production of fly ash is about 120 Million tonnes per year and is expected to reach around 170 Million tonnes by 2012 A.D. This has posed a serious disposal and ecological problem in addition to occupying a large tract of scarce cultivable land. The country’s dependence on coal for power generation is increasing and so the production of fly ash will be more. Fly ash causes air, water and soil pollution when it is exposed to environment. This project is an attempt to find a suitable utilization for a particular fly ash sample. The area required for disposing fly ash will be minimised and so damage to the environment will be minimum. In this project various experiments were carried out on fly ash samples. Based on the results obtained from these experiments, a suitable use for the fly ash is ascertained. The main constituents of the composite are: 1. Fly ash 2. Lime 3. Gypsum 4. Cement Different samples were taken with different lime proportions (0, 2, 4 and 6) % of fly ash (by weight), percentages of gypsum were (0, 1, 2, 3, and 4 and 5) % of fly ash (by weight) and that of cement were (0, 2, 4, 6, 8 and 10) % of fly ash (by weight) and their properties were studied. The results from these above experiments helped in determining the potential of the fly ash for use, in making composite materials. Composite material made of fly ash is subject to a variety of different loading conditions, and so different types of stresses develop. Based on the different strength of composites it can be used in various geotechnical applications like construction of roads, Embankment, dams and reservoirs and mine filling.
Authors and Affiliations
Abhishek Arya, Naveen Hooda
Keywords
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