In recent years, as the pace of reform and opening up accelerates, the national environmental protection circular economic development accelerates, and the comprehensive utilization and development of resources have achieved remarkable results. The output of desulfurized gypsum and phosphogypsum has accounted for more than 80% of the total industrial by-product gypsum, and the industrial gypsum resources are increasingly rich.
Due to the progress of science and technology, the production technology of gypsum has been improved, and the output and quality of industrial by-product gypsum have been increasing and improving. Through deep processing of various modified gypsum in the field of construction is increasingly popular and extensive application, not only limited to the building wall surface finishing project, but also extended to the deeper level of the building project. Now the application area is not only the former northern region, but also in the southern region quite popular.
In recent three years, the sales volume of all kinds of gypsum mortar construction machinery in Wenzhou Construction Machinery Co., Ltd. has exceeded the 20% growth rate. Especially after the epidemic prevention and control has eased this year, the sales volume of gypsum mortar spraying machine after the resumption of work and production has increased significantly compared with that of last year, which is enough to show that industrial by-product gypsum in the construction industry is no longer the building materials industry that stood out in the past. It is equal to the field of construction.
Gypsum mortar as a new green building material, its gypsum as the base material has good workability, water retention, cohesiveness, slurry hydration is sufficient, good at different base materials solid bonding, physical properties can be comparable to cement based mortar, and the operability is higher than cement based mortar.
At present, the gypsum based mortar produced by by-product gypsum is mainly used in the field of building construction, such as plaster gypsum mortar, floor gypsum mortar and high strength gypsum mortar.
