Center for By-Products Utilization PROPERTIES OF CONCRETE CONTAINING SCRAP TIRE RUBBER – AN OVERVIEW

Solid waste management is one of the major environmental concern in the United States. Over 5 billion tons of non-hazardous solid waste materials are generated in US each year. Out of which more than 273 million scrap tires (approximately 3.6 million tons) are generated each year. In addition to this, about 3 billion tires are stockpiled. Several studies have been carried out to reuse scrap tires in a variety of rubber and plastic products, thermal incineration of waste tires for production of electricity, or as fuel for cement kilns, and use in asphalt concrete. Studies in this direction show that workable rubberized concrete mixtures can be made with appropriate percentages of tire rubber. This paper presents an overview of the research carried out in an effort to utilize scrap tires in portland cement concrete. The benefits of using magnesium oxychloride cement as binder for rubberized concrete mixtures are presented. The paper also details the likely uses of rubberized concrete.