Abstract
The effect of plasticizers based on sulfonated melamine formaldehyde (Melment F 15 G) and polycarboxylate (Melflux 5581 F, Sika ViscoCrete-G2) on the properties of molding plaster consisting of α-calcium sulfate hemihydrate was studied. The concentrations of additives that increase the strength in compression of molding plaster samples by factor of 1.5 – 2 were determined on the basis of the results of this work.
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