Still more recently concrete did not involve attention because of the "ёхЁюё=ш". Today he so has learnt to change the appearance that sometimes it is very difficult for distinguishing from a natural stone. Modern concrete is capable to transfer almost any most thin lines, to reproduce a various structure, to be painted in the most different colours. It is capable to simulate boulders, porous drevnevostochnye limestones, yellow-grey sand, smooth cobble-stones, a monolithic rock with cracks and hollows, splinters of a reef and many other things.
It is possible to decorate with Concrete products a building or house facade remarkably: it is decorative enough, rather easy, convenient and simple for installation and has no radioactive background. In addition, it possesses high frost resistance.
The Walls of a building decorated with an artificial stone, receive additional protection against a moisture and become warmer.
Facing by an artificial stone is perfectly combined with other kinds of furnish: a tree (a log, a bar), smoothly plastered surfaces. Various combinations of an artificial stone will well look on one facade: the stones processed and wild, light and dark, large boulders and small pebbles etc.
The Invoice of facing concrete plates depends on a way of their formation and processing. It can be smooth (shlifovannoj), relief and simulating a natural stone. Architectural details of the difficult form, for example capitals, bas-reliefs, make with the smooth invoice.
Today there are some categories into which concrete products depending on the material invoice are subdivided:
Wild butovyj a stone - imitation of the raw stone different in size, with the kept natural drawing. On a wall makes impression of deliberately rough laying.
slightly processed stone - on otesannom the rectangular basis remains volume with a wild surface.
Rough skol simulates primary draught to a stone stump in bruski.
Thin processing - carefully drafted stones.
the River stone - neobkatannye water river stones.
Artificial stones do of cement, mineral napolnitelej, painting pigments, various additives for improvement of technological properties. For manufacturing of plates it is possible to use about the following structure of a concrete mix (mas. ch.): cement of mark 400 - 100, a calcareous flour - 25-50, ohra light 1-5, sand light - 100, a stone crumb - 100-200, water - 60-70. The concrete class should not be more low В25, frost resistance - not less F35.
The Sizes of stones, depending on a plan, can be from 50 X 200 to 100 X 400 mm and thickness of 10-20 mm (simulators of a cobble-stone, a natural stone - to 100 mm). .
At facing of concrete walls for giving of a roughness by it do notches a manual electric hammer. Wooden walls preliminary plaster. For this purpose to a wooden surface beat vertical and horizontal bruski in the thickness of 20-25 mm and width 30-35 mm and attach a roofing felt or roofing material layer. On it beat a metal grid with cells 10 X 10 or 15 X 15 mm. Then put a plaster layer with otnosom in 20-25 mm. Prepared for facing thus, the surface at change of volume of wood keeps normal operation of tiled facing.
That concrete plates were strongly linked to a surface, the back party needs to be notched or planted on grooves (type "ырё=юёъшэ §тюё="). .
For fastening of concrete plates crutches and washers which are inserted into grooves of plates are used. Crutches insert in drilled or punched in a wall shljamburom nests and close up cement.
Fastening of concrete plates with assembly loops is made by means of a wire which twist for loops at plates on the one hand and for the steel cores attached by crutches or for hooks, - on the other hand.
Installation begins with angular plates, then in everyone horizontal to a number stack facing stones from edges to the middle in a direction to the central stone - "чрьъѕ". Correctness of horizontal installation of the first row is supervised by a level, all subsequent numbers - a cord, level and a plumb; marks of horizontal seams are defined on reference points.
The Thickness of seams at the rough invoice should equal about 10 mm, at shlifovannoj - 3 mm, furrowed - no more than 5 mm, at glossy and polished - no more than 1,5 mm. .
At width of seams to 1,5 mm stones are established dry or with lining use rolnogo lead, at width of a seam of 5-10 mm - on a solution layer. Free space between a wall and a facing plate fill in with cement gradually, in process of drying of the last portion. The first pouring should be necessarily executed from more plastic cement mortal at height 10 see