| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to compositions of putty for levelling surfaces of concrete articles. The putty contains the following in wt %: cement 28.0-32.0; clay, which is burnt before sintering and ground to specific surface area 4500-5000 cm2/g, 37.0-46.0; water 24.0-28.0; 7% solution of a polyvinyl acetate dispersion 2.0-3.0. ^ EFFECT: high strength of adhesion of the putty with concrete surface. ^ 1 tbl |
