Study of Utilisation of Hypo Sludge in High Performance Concrete

Abstract

Population scenario came towards India by means of increasing industries. More than 200 million tonnes of agriculture and industrial waste is produced every year .Hypo sludge produced by mills is posing major economic and environmental problem .The main recycling and disposal routes for paper sludge includes land spreading over croplands and disposal into farmlands or to landfills which gives rise to contamination of soil. Since energy plays a crucial role in growth of developing countries like India and with low availability of non-renewable energy resources linked with the requirement of large quantities of energy for building materials like cement the re-use of by products or wastes produced in nay industrial process is a high priority today and one way of recycling these materials is to seek concrete applications with compatible use and the same characteristics. The published work shows that paper industry is one of the better sectors to get environmental objectives since raw materials are renewable, its products and wastes are recyclable and production processes are capable of technological improvements to protect the environment. The paper presents the overview of published work on utilisation of hypo sludge with high performance concrete, exploring its pozzolanic properties, mechanical properties like compressive strength, splitting strength, modulus of elasticity, water absorption test, sorptivity and cost analysis are presented.