INFLUENCE OF WASTE MATERIALS ON CONCRETE MIXES PROPERTIES

Abstract

Summary: This study examines the influence of two types of waste materials: (The first is the tyre waste while the second is the toner waste) used in the mortar mixes as replacement of fine grains aggregates. Several properties of the mixes are measured such as the compressive strength of the different mixes, the influence of adding these waste materials on the unit weight of the mixes, and the workability of the mixes. Possible applications of these mixes are also proposed. According to the results obtained from the current study, it could be concluded that Indian slag gives more compressive strength than the Egyptian slag which means that local slag should be exposed to some specific processes to give better performance. The highest compressive strength was obtained by utilizing Indian slag with the mixture of color and black waste toner. It was also concluded that the mixture of black and color toner (1:1weight ratio) gave higher compressive strength than the case of black waste toner. The tyre mixes according to the results of this study have the lowest compressive strength compared with the compressive strength of the toner waste either for Indian and Egyptian slag.