| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to special concrete compositions and can be used in the industry of structural materials in producing radiation-proof concrete, including concrete for "dry protection" of a nuclear power plant reactor. The radiation-proof concrete composition contains inorganic binder, serpentinite chips with particle size of 5-20 mm, serpentinite peebles, water, the composition being characterised by that it further contains a superplasticiser, calcium oxide, magnesium oxide, barium oxide or mixtures thereof, with the following ratio of components, wt %: inorganic binder 5.0-20.0; serpentinite chips with particle size of 5-20 mm 31.0-55.0; serpentinite peebles 6.0-30.0; alkali-earth metal oxides 8.9-10.0; superplasticiser 0.1-1.0; water 4.0-8.0.EFFECT: high quality of concrete as a result of improved workability and reduced demixing when applying the concrete mixture due to reduced water segregation and mortar segregation, as well as faster drying of the concrete.2 cl, 1 tbl |
