FIELD: chemistry.
SUBSTANCE: invention relates to the field of construction materials, in particular to compositions of additives, used in the production of precast reinforced concrete and commercial concrete. A complex additive for concretes contains a superplasticiser based on naphthalenesulphonates, a setting retarder based on hydroxycarboxylic acids and a nitrogen-containing component based on alkanolamines with the following ratio (wt %): naphthalenesulphonates - 75-95, setting retarder - 2-10, nitrogen-containing component - 3-15. The invention developed in dependent items of the invention formula.
EFFECT: invention provides a possibility of regulating kinetics of concrete structure-formation and hardening.
4 cl, 3 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPLEX ADDITIVE FOR CONCRETES AND MORTARS | 2012 |
|
RU2528342C2 |
| COMPLEX CONCRETE MIXTURE ADDITIVE | 2022 |
|
RU2795636C1 |
| COMPLEX ADDITIVE FOR CONCRETE MIXES AND WATER MORTARS | 2007 |
|
RU2342339C1 |
| ANTI-FROST COMPLEX ADDITIVE AND METHODS TO PRODUCE DRY FORM OF ADDITIVE (VERSIONS) | 2012 |
|
RU2543230C2 |
| COMPLEX ADDITIVE FOR CONCRETES AND MORTARS (VERSIONS) | 2012 |
|
RU2527435C2 |
| MIXTURE FOR PRODUCING FINE-GRAINED STEEL FIBRE CONCRETE BASED ON QUARTZITE SANDSTONE GRINDING SCREENINGS | 2011 |
|
RU2467972C1 |
| POLYFUNCTIONAL SUPERPLASTICISER FOR CONCRETE MIXTURE AND MORTAR | 2009 |
|
RU2405747C1 |
| COMPLEX MODIFICATION ADDITIVE FOR MANUFACTURE OF FAST-HARDENING PORTLAND CEMENT CONCRETES | 2002 |
|
RU2232144C2 |
| COMPLEX ADDITIVE FOR CONCRETE, MORTAR AND CEMENT COMPOSITES (VERSIONS) AND METHOD OF PRODUCING SAID ADDITIVE | 2011 |
|
RU2467968C1 |
| SUPER-PLASTICIZER RETARDING SETTING | 2003 |
|
RU2262490C2 |
