FIELD: building materials, in particular aerated concrete of non-autoclaving curing.
SUBSTANCE: claimed raw mixture contains (mass %): fly ash 35.6-36.5; Portland cement 10.3-11.84; microsilica with specific surface of > 250000 cm2/g, containing 90-95 % of amorphous SiO2, 3.32-3.4; gypsum 1.8-1.82; detergent as air-entraining agent 0.06-0.07; foaming agent 2.12-2.37; and water 54.0-45.8. Method of invention includes preparation of said raw mixture by two-stage porization: in the first one dry components are tempered with aqueous solution of air-entraining agent and agitated in high-speed blender by 2-3 min, and in the second one foam obtained by barbotage is blended with porizated mineral slurry; as well as formation; and steam curing.
EFFECT: increased raw base; material with reduced cost.
1 ex, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| MOULDING MIX FOR PREPARATION OF FOAM CONCRETE | 2022 |
|
RU2802407C2 |
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| METHOD OF MAKING NON-AUTOCLAVE AERATED CONCRETE | 2009 |
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| RAW MIX TO PRODUCE EFFECTIVE FOAM CONCRETE | 2014 |
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| RAW MEAL FOR MANUFACTURING ELEVATED-POROSITY CERAMIC MATERIALS | 2002 |
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| RAW MIXTURE FOR PREPARATION OF A FOAMED CONCRETE | 2002 |
|
RU2228315C2 |
| RAW MIXTURE AND METHOD FOR MAKING FOAM CERAMIC ARTICLES | 2002 |
|
RU2235699C2 |
