| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to preparations used for increasing water resistance of concrete, namely to elaboration of novel concrete-colmating (imperforating concrete pores) composition. In basic version composition represents mixture of salts, formed by metals from the group: sodium, potassium, calcium, aluminium, and acids from the group: nitric, formic, sulfuric, carbonic, with the following ion ratio (ion weight in composition, g)/(100 g of composition): sodium 5.6-32, calcium 0.4-17.2, potassium 1.5-27.2, aluminium 0.5-7.6, nitrate 4.1-62.1, formiate 0.6-29.7, sulfate 10.3-54.7, carbonate 1.1-29.7, as well as complex-forming additives (such as, for instance, carbamide, nitryltriacetic acid, imino-N,N-diacetic-N-methylene phosphonic acid; glycin-N,N-di(methylene phosphonic) acid, iminodi(methylene phosphonic) acid; diaminopropanol- N,N,N',N'-tetraacetic acid; 2-hydroxypropylene diamine- N,N,N',N'-tetra(methylene phosphonic) acid; 2,3-dihydrobutylene-1,4-diamine- N,N,N',N'-tetra(methylene phosphonic) acid; 2,3-dihydroxybutylene-1,4-diamine- N,N,N',N'-tetraacetic acid; nitryl-tri(methylene phosphonic) acid; 1-hydroxyethylene diphosphonic acid; ethylenediamin- N,N,N',N'- tetra(methylene phosphonic) acid; ethylenediamine-N,N,N',N'- tetraacetic acid; in amount not more than 20% of colmating composition weight.EFFECT: extension of arsenal of preparations, used to increase concrete water resistance.5 cl, 3 tbl |
