FIELD: manufacturing technology.
SUBSTANCE: invention relates to production of heat-insulating materials. Charge for producing foamed heat-insulating material comprises, wt%: amorphous siliceous rock – 50–52, sodium hydroxide – 14–16, calcined dolomite flour – 4–6, water – 26–28.
EFFECT: increased water resistance, a more uniform, strong and rigid structure are provided.
4 cl, 1 tbl, 5 ex
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