METHOD OF PRODUCING CONSTRUCTION GYPSUM-BASE ARTIFICIAL STONE

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 to building materials industry, namely the ways of u043fu043eu043bu0443u0447u0435u043du0438u00a0 structural u0442u0435u043fu043bu043eu0438u0437u043eu043bu00a0u0446u0438u043eu043du043du044bu0445 materials based on u0441u0442u0440u043eu0438u0442u0435u043bu044cu043d wow gypsum. purpose u0438u0437u043eu0431u0440u0435u0442u0435u043du0438u00a0 u00a0u0432u043bu00a0u0435u0442u0441u00a0 increased strength and speed of its set. method u0438u0437u0433u043eu0442u043eu0432u043bu0435u043du0438u00a0 artificial u043au0430u043cu043du00a0 based on building gypsum u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 mix sour lime, gypsum, mineral additives, water and u0444u043eu0440u043cu043eu0432u0430u043du0438u0435u043c.the first mix the lime and additive in the ratio of 1: 1 to 1: 9 of 25 - 50 mas.% of the mass of dry u0444u043eu0440u043cu043eu0432u043eu0447u043du043eu0439 mixture with the addition of 60 - 87.5% of water from the municipality of mas. quantity received and u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 grinding suspension or soak in u043fu0435u0440u0435u043cu0435u0448u0438u0432u0430u043du0438u0438 to u0441u0432u00a0u0437u044bu0432u0430u043du0438u00a0 2.5 to 12.5 mas.% lime to the mass of dry u0444u043eu0440u043cu043eu0432u043eu0447u043du043eu0439 mixture.then u0432u0432u043eu0434u00a0u0442 in slurry water, separately heated slurry and gypsum to the temperature of 85 95u0441 and final mixing u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 at the same temperature. the compression strength after 28 days of normal u0442u0432u0435u0440u0434u0435u043du0438u00a0 9.0 - 16.6 mpa, water u0442u0432u0435u0440u0434u0435u043du0438u00a0 8.6 - 14.4 mpa. 2, table 2).