Half dry gypsum plaster preparation technologyApplicability:Apply to semi-dry method etc.for stone series products. Such as the standard brick, block, a board, partition panel, ceiling, gypsum board, decorating plate, etc. Production technology of the current international and domestic gypsum block are pouring method, water paste than the average of 0.8-0.9, to remove gypsum hydration water 16%, excess free water (60-70%) need artificial or natural drying, extend the delivery time, increase the production cost, restrict the development of stone) block.
The reaction mechanism:Semi-dry method of gypsum block and the method of pouring gypsum block are hydration reaction, but water paste ratio of only 0.3. In order to make full hydration reaction. Optimizing SK additives, its comprehensive performance is: 1 the crystal, 2, 3 the coagulation, 4 adjustable, 5 waterproof. According to the different material of building gypsum powder, choose different SK additives, in order to meet the technical quality requirements. Block after testing the indicators meet or exceed national standard and European standard requirements.Efficacy:Semi-dry method of gypsum block high hydration heat, generally a die every 5 to 6 minutes. Hydration the mold cooling package after 2 hours. High production efficiency, without drying.
Advantage:Comprehensive production cost and energy consumption is far lower than the casting method. Shaping up to 1 days after laying standards can be sent to the site. Block grip of strong, can be directly, nail has woodiness feeling, waterproof. High density of 1200 kg/m3 or above. Good sound insulation, high strength.
