Improvements in and relating to the manufacture of light building slabs and of filling material or aggregates adapted for use in their production

摘要

Filling materials or aggregates for use in the production of light weight building slabs are made by impregnating organic material such as woodwool, sawdust reeds, and straw with a mixture of waterglass, glycerine, and hydrochloric acid, preferably at a temperature of about 15 DEG C. In an example, the impregnating mixture comprises 1000 c.c. of a solution of waterglass of 4 DEG B., 50 c.c. of hydrochloric acid and 200 c.c. of glycerine. The treated material is mixed with a suitable binder such as cement to form slabs.