FIELD: construction industry.
SUBSTANCE: composition meant for interior and exterior architectural work consists of water, burnt plaster and setting inhibitor chosen from the group consisting of polyacrylic acid, polyacrylic acid salt and their combinations, where the composition mass ratio of water to burnt plaster is approximately 0.15 to approximately 0.5, molar weight of the setting inhibitor is about 1800 dalton to about 4500 dalton, the composition viscosity is about 5000 centipoises to about 48000 centipoises; and the above composition comprises connected matrix of hardened plaster when being mixed with the activating agent of calcium sulphate interracting with water thus obtaining hardened plaster. The invention also refers to the set which includes the components packed separately. One of them is the composition containing burnt plaster and polyacrylic acid and/or its salt, and water (optional). The other one is activating agent which, when being mixed with the above composition, contributes to its setting.
EFFECT: increasing lifetime and strength.
41 cl, 4 ex, 4 tbl
