FIELD: construction.
SUBSTANCE: mortar includes Portland cement, sand and brucite burnt at 1000°C during 10 minutes. It contains 97-99 wt % magnesium oxide, which is milled to specific surface 290-310 m2/kg at the following ratio of components, wt %: Portland cement 22.50-24.75, sand 67.50-74.25, the above brucite 1-10.
EFFECT: increased stability of salt efflorescence generation.
1 tbl, 5 ex
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