Pavement Performance Research on Fly Ash-Carbide Slag Residue Concrete

Large-scale comprehensive utilization of industrial solid waste is a worldwide problem. The application than the fly ash and the carbide slag are used as road construction materials is a comprehensive utilization method of large amount consumption of industrial solid waste. Combined the physical and chemical properties of fly ash and carbide slag, the changes of compressive strength, flexural strength and elasticity modulus of different cement content are studied. Considered the climatic conditions and traffic conditions of rural road in Three Gorges reservoir area, the impermeability, the frost resistance, the wear resistance, the dry shrinkage and the thermal shrinkage of fly ash-carbide slag residue concrete are analyzed. The results indicate that the fly ash-carbide slag residue concrete has good road performance and can meet the requirements of road construction in Three Gorges reservoir area; It provides a new method for the solid waste disposal, the environmental protection and rural road construction in Three Gorges reservoir region.