DESTRUCTION OF POLYMERCEMENT PLASTER COATING DURING OPERATION OF WALL STRUCTURE

The disadvantage of limesand, limecement and cementlime plaster mortars is the intensive formation cracks during hardening operation, which leads to rapid destruction coating, its detachment from masonry, causes increased humidity loss heat through it, as well reducing service life wall structure.The main reason for this choosing components mixture their quantity without taking into account processes occurring curing coating "work" part structure operation.To solve problem, should be considered a system that includes associated with masonry contact area. composition soluble must prescribed hardening operation structure, stresses occur in it. It necessary choose quantity, so ensure reduction zone values, less than destructive. This will increase construction.Since properties polymercement mortar are determined by achieve these goals, possibility managing them purposeful selection was analyzed. For purpose, redispersible polymer powders (RPP), fiber, cellulose esters, fine filler low modulus elasticity were used.Studies have shown use has changed nature destruction, reduced number formed mortar, slowed down development structure.