FIELD: construction industry; methods of manufacture of the wall products made out of the light concretes with the facial surface finish layer.
SUBSTANCE: the invention is pertaining to the field of construction industry, in particular, to the method of production of the wall products made out of the light concretes, which may be used at erection of the external walls of the buildings and structures. The technical result of the invention consists in the capability of production of the wall products from the light concretes having the high compression strength, the low thermal conductivity, the qualitative facial finish layer, and also the sufficient degree of fastness of cohesion between the layers excluding the possibility of destruction caused by delamination or spalling. The method of production of the wall products made out of the light concretes with the facial surface finish layer providing for preparation of the molding mass, its piling into the mold and the bilayered molding differs by the fact, that the molding mass for the facial surface finish layer is prepared from the cement-sand admixture with addition of the ferric oxide pigments of different colors, and the molding mass for the primary layer is prepared from the light-concrete mixture including the natural or artificial porous fillers, which is placed in the mold in the form of collapsible or detachable formwork with the mounted in it plug-in technological molding bed. Then exercise compaction by light pressure of the light-concrete admixtures and, in the mold volume formed after the compaction of the light-concrete admixture place the layer of the cement-sand admixture with the added the ferric oxide pigments, on which the upper punch with lower die, the dimension and the form of which are identical to the formwork and the mounted in it the plug-in technological pan, then, exercise the molding with the simultaneous compression and the vibration compaction of the layers being in the mold.
EFFECT: the invention ensures production of the wall products made out of the light concretes having the high compression strength, the low thermal conductivity, the qualitative facial finish layer, the sufficient degree of fastness of cohesion between the layers excluding destruction caused by delamination or spalling.
3 cl, 3 tbl, 1 dwg, 1 ex
