The strength and water-resistance of fly ash anhydrite binder (be called FAB in short).which its main raw materials are desulphogypsum and fly ash ,are higher than those ordinary gypsumpreducts.

• 以脱硫石膏与粉煤灰两种工业废渣为主要原料制得的粉煤灰无水石膏胶结材（以下简称FAB），具有比石膏制品高的强度与耐水性。