FIELD: building materials industry.
SUBSTANCE: invention can be used for fire protection of concrete, reinforced concrete and metal structures. Fire-retardant dry raw mix for the manufacture of plaster includes, wt.%: Portland cement 34.0-52.0, expanded vermiculite with a bulk density of 150 kg/m3 and with a maximum grain size of 2.5 mm 13.6-28.0, volcanic ash fraction up to 0.63 mm 26.7-46.0, complex modifying additive D-5 1.0-1.2.
EFFECT: increased flexural and compressive strength.
1 cl, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2594493C1 |
