GYPSUM SET ACCELERATOR AND METHOD OF MAKING THE SAME

摘要

A composition for accelerating the setting reaction of an aqueous calcined gypsum slurry, and a method of making the same are disclosed. The compositio n includes a vibratory ball milled mixture of calcium sulfate dihydrate and a surfactant. The composition is prepared by subjecting the mixture to the hig h- frequency, low-impact grinding action of a vibratory ball mill. The resultan t composition has a potency superior to that of conventional gypsum set accelerators.