Main Article Content
Conservation of natural resources and preservation of environment is the essence of any development. The problem arising from continuous technological and industrial development is the disposal of waste material. Due to growing environmental awareness, as well as stricter regulations on managing industrial waste, the world is increasingly turning to researching properties of industrial waste and finding solutions on using its valuable component parts so that those might be used as secondary raw material in other industrial branches. If some of the materials are found suitable in concrete making not only cost of construction can be put down, but also safe disposal of waste materials can be achieved. Although cast iron slag is still today considered as waste and is categorized in industrial waste catalogues in most countries in the world, it is most definitely not waste, neither by its physical and chemical properties nor according to data on its use as valuable material f or different purposes. Our study is to preserve the environment by replacing sand partially with cast iron slag in concrete. After the moulding of cast iron, the dust surrounding the cast iron specimens are collected which are named here as cast iron slag. In our project, these fine particles are used to replace sand in concrete of grade M30. The cast iron slag and river sand are tested for analysing their physical properties. Fresh concrete is prepared for various percentage replacements in concrete grade of M30 and their workability is analysed. The replacement is done at the rate of 0% to 15% in the increment of 5. Various cubes are casted by replacing river sand with cast iron slag in concrete and compressive strength is determined after 7 and 28 days of curing. Finally, the optimum percentage replacement of cast iron slag in concrete is determined.