Effects of fly ash admixture on the mechanical behaviour of silty clay

The significant part of the electrical power in Turkey is produced in coal consuming thermal plants. Coal-based power plants takes the first order in producing the electrical power. About 15 million tons of fly ash is produced as by-product solid waste while the annual total cement production is about 25 million tons. As the other industrial wastes, it leads to stocking and environmental problems. Low-cost availability and chemical properties of the fly ash give opportunity to reach economical solutions in the geotechnical engineering field and to minimize the hazard to the environment. In this study, the effect of the fly ash admixture on the strength of silty clay has been experimentally investigated and the possibility of employing fly ash in road construction is discussed.