PROCESS OF MANUFACTURING FACING SLAB Russian patent published in 1994 - IPC

FIELD: manufacture of building materials. SUBSTANCE: 3.5-4.5 % by weight of bensoyl peroxide based on polyester resin is dissolved in acetone in the 1:1.6-1:2.5 ratio. The resulting solution is mixed together with polyester resin, and the resulting mixture is allowed to stand for 20-28 h. Thereafter, to the mixture a filling material is added under careful stirring. The obtained resin concrete material is placed into a mold treated with an antitacking agent. The mold is placed to a drying heated stove at 100-120 C for 30-60 min. The facing slab is released from the mold after cooling it. EFFECT: increased compression strength. 1 cl, 1 tbl