Effect of Fly Ash Addition on the Properties of Fired Clay

Abstract

The disposal of industrial wastes becomes one of the primary environmental problems in the world as these residues make the environment unfriendly and becoming toxic. Fly ash is one of the many substances that causes air, water and soil pollution. It also contains high amounts of toxic metals that might have negative consequences on human health. This waste material to be disposed of is a matter of great concern from the viewpoint of the environmental and ecologic system. Hence, it becomes crucial to reuse the vast amount of fly ash. A lot of research has been done on recycling and how the waste can be reused that we produce in our daily experiences. In order to save the precious land and soil from being used in manufacturing building bricks and to save the environment from the waste, this project work emerges. In this project, the experiment has been done to know whether fly ash addition alters the properties of fired clay or not. Different batches have been made by changing the fly ash percentage which varied from 0% to 80%. After preparation of green bodies drying shrinkage, rolling limits of different batches are analysed. Then products were fired following to that the characterizations i.e. apparent porosity, water absorption, bulk density and firing shrinkage were done. These properties are studied with respect to temperature and fly ash content.