Binder for interior plaster.

摘要

A binder for internal plaster is based on calcium sulphate capable of binding with water. A fine particulate residue contg. essentially calcium sulphate from exhaust gas desulphurisation in coal-fired combustion plants with a specific surface area according to the Blaine method of greater than 10,000 cm<2>/g in an amt. of 10-80 pts.wt. dependent on the surface area of the calcium sulphate present in an amt. of 20-100 pts.wt. and whose surface area is in the region of ca. 1,000-10,000 cm<2>g/g is contained to set a water requirement of the plaster in the region of 0.4-0.7.