Why the street rainwater branch groove and inspection wells around the application of lime soil and lime fly ash gravel filled
Fly ash is one of the industrial waste residue with large displacement in our country. With the development of power industry, the amount of fly ash discharged from coal-fired power plants is increasing year by year. A large amount of fly ash not treated, will produce the dust and air pollution; if into the water system will cause the blockage of river, and one of the toxic chemicals will cause harm to human and biological. In addition, fly ash can be used as admixture of concrete.
Fly ash is a kind of fine ash collected from the flue gas after coal combustion, and the fly ash is the main solid waste discharged from coal-fired power plants. The main oxides of fly ash in China's thermal power plants are SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2 and so on.
Because around the branch groove and inspection wells while the compaction degree is not up to, with lime or lime fly ash gravel filled with high strength, but also can resist subsidence.
