FIELD: construction.
SUBSTANCE: plasticising additive for concrete includes technical lignosulphates and formaldehyde, specified components are contained at the following ratio, wt %: technical lignosulphates - 28-49.5, formaldehyde - 1-7, balance - water up to 100%, at the same time the method to produce an additive includes mixing of initial components of the additive for 360-720 minutes and heating of the mix at the temperature of 65-75°C.
EFFECT: increased mobility of a concrete mix, increased concrete strength, cement saving.
2 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| CONCRETE MIX FOR HYDROINSULATION AND METHOD OF PREPARING CONCRETE MIX FOR HYDROINSULATION | 1998 |
|
RU2132828C1 |
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| COMPLEX ADDITIVE | 2012 |
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| METHOD FOR PRODUCTION OF PLASTICIZER FOR CEMENT-CONCRETE MIXES | 1992 |
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RU2039720C1 |
| METHOD FOR TWO-STEP PRODUCTION OF POLYFUNCTIONAL COMPLEX ADDITIVE FOR CONCRETE AND MORTAR AND POLYFUNCTIONAL COMPLEX ADDITIVE | 2007 |
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RU2478591C2 |
| CONCRETE MIXTURE | 2004 |
|
RU2282601C2 |
| METHOD OF PRODUCING PLASTICIZING ADDITIVE | 0 |
|
SU1548171A1 |
