CRUDE MIXTURE FOR PROTECTIVE COATING OF SURFACE OF CARNALLITE ROCK

摘要

FIELD: construction.;SUBSTANCE: invention can be used for carnallite rock protection. Crude mixture consisting of Portland cement, aggregate, complex additive and water, aggregate contains micro calcite fraction 100 micron, and complex additive consists of a polymer of vinyl acetate, superplasticizing agent trichloroethylphosphate and polypropylene fibre length of 6 mm, with the following component ratio, wt %: 93.2-94.2; 0.4-0.5; 5.4-6.3 respectively, with following ratio of components, wt %: Portland cement 34.4-36.48 ; said aggregate 43.72-44.82; mentioned additive 6.4-6.9; water 13.4-13.8.;EFFECT: high crack resistance and adhesion strength to the surface of rocks, represented by mixture of potassium, sodium and magnesium.;1 cl, 2 tbl