With the acceleration of construction, highways, railways, bridges and other infrastructure construction and urbanization, rapid development of urban renovation and construction industries, a number of old buildings, structures, urban infrastructure service life expires removed, will produce increasingly more construction waste. Currently the vast majority of construction waste without any treatment, by the construction unit shipped…

Introduction of limestone Limestone, limestone as the commodity name of mineral raw materials, a wide range in our country, is abundant, the road is an important building material, is also a raw material calcined lime, cement of calcium carbide, is an indispensable solvent limestone in metallurgical industry, high-quality limestone writing after ultra-fine grinding, is widely…