FIELD: chemistry.
SUBSTANCE: invention relates to compositions of crude mixtures used in making bricks for low-height construction. The crude mixture for making bricks contains the following in wt %: phosphogypsum 45.0-52.0; fuel ash 47.0-50.0; glass fibre cut to 3-10 mm pieces 1.0-5.0.
EFFECT: high water resistance of bricks.
1 tbl
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