| 摘要 |
FIELD: construction. ^ SUBSTANCE: raw mix that contains -semi-hydrate of calcium sulfate, calcium-containing residue of radio engineering production waste waters dried down to permanent mass, and water, additionally contains modifying additive with specific surface of 500 m2/g, produced by joint grinding of glauconite sand with content of SiO2 87% and superplasticiser C-3 in amount of 1% from mass of sand, at the following ratio of components, wt %: -semi-hydrate of calcium sulfate 55-57, calcium-containing residue of radio engineering production waste waters 5-6, specified additive 10-15, water - the rest. ^ EFFECT: higher compression strength, reduced water absorption and higher water resistance. ^ 3 tbl |
