FIELD: construction materials.
SUBSTANCE: light-coloured ceramic mixture for face brick contains dolomite clay with dolomite content of not less than 20%, neogene clay of chemical composition, wt.%: SiO2 65.51, Al2O3 13.99, TiO2 0.85, Fe2O3 4.84, CaO 0.99, MgO 1.58, SO3 0.15, Na2O 0.71, K2O 2.29, P2O5 0.1, MnO 0.03, technical dispersed chalk. Ratio of components is as follows, wt.%: said dolomite clay 66.0–76.0; said neogene clay 14.0–22.0; technical dispersed chalk 10.0–12.0.
EFFECT: increased ultimate compression and bending strength.
1 cl, 3 tbl, 3 ex
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