Plaster works Works shtukatura Shtukaturu Shtukaturu for work

Stone plasters

IS DECORATIVE

For this kind of decorative furnish preparatory operations are conducted in the usual way, as for high-quality plaster.

Beacons rub from this a solution what will be used for a ground. It is a usual cement mortal with sand where for plasticity add limy milk.

The Ground put in 2 layers. For the first in the thickness to 5 mm take slightly razzhizhennyj a solution. When the first layer will seize, impose the second layer (thickness of 10 mm) a solution of normal density. A ground moisten 4... 7 days 2... 4 times a day. Only for the seventh-tenth day make nakryvku a decorative solution: the first layer - from more liquid solution, to the second - from more dense solution put through 1... 2 ch. Drawing and bolshego numbers nakryvochnyh layers Sometimes is required. All condense them and level.

Bucharda

a Fig. 65. Bucharda

Decorative rocks split up in special crushers and sort on two grades with krupnostju grains 0,6... 2,5 and 2,5... 5 mm.

The Limy dough dilute with water to a consistence of limy milk. Thus it is necessary to watch, that the consistence was a constant during all time of works for the given object.

Components load in rastvoromeshalku in such order: fill in limy milk, fall asleep cement and mix them 2... 3 minutes Then fall asleep a crumb, a marble flour and all mix yet less than 5 minutes

Nakryvochnyj a layer should harden reliably, after all processing by percussion instruments is necessary to it. Nakryvku during 5... 7 days some times a day moisten with water, protect from the sun.

It is possible to start impressive processing only when at trial nakovke slices are chopped off with a sonorous sound. Publish a deaf sound - still early. Plaster under the sharp tool is rumpled, grains are painted - still early.

Nakovka urged to remove a film formed knitting, to cause game of crystals of a crumb of a natural stone from a surface of plaster. This effect is reached in the various ways.

It is possible to receive the fine-grained or coarse-grained invoice, applying accordingly buchardy with a great number of teeths - 36, 64 or smaller - 16, 25 (fig. 65).

The processing method "яюф °ѕсѕ" Is known widely; and "яюф fragmentary ърьхэі" when into plaster hammer shpunty or skarpeli, and then lateral blow of a hammer break away pieces of the fallen asleep finishing weight. As such large skolki leave deep "Ёрэ№" on planes, a thickness of a finishing layer in this case it is necessary to lead up to 30... 40 mm, and into a filler to enter to 30% of a crumb krupnostju 5 and even 7 mm.

Skolki of the smaller size beat off also shpuntom or skarpelju at surface processing "яюф tesanyj ърьхэі". Here the thickness of a finishing layer is equal 20 mm, and as a filler the crumb krupnostju 2,5 serves... 3 mm.

If to use trojankoj (fig. 66) with teeths of different size and the form, it is possible to receive the various shaded surface. Small trojankoj, conducting nakovku it in one direction, in parallel, create melkoshtrihovannuju a surface. Larger and with a different configuration of teeths trojanki allow to receive furrowed or zhelobkovuju the invoice.

Trojanka

a Fig. 66. Trojanka

For processing of architectural details and the surfaces broken into stones, apply smooth nakovku with the allocated edges. At first notch stone edges. Skarpel put so that strokes laid down perpendicularly to edges. Beginning processing of a smooth field, it is necessary to take care of that buchardoj not to spoil an edge. For this purpose a notch near them begin trojankoj, directing blows from edges. Only after that undertake for buchardu.

For bolshej expressiveness, relefnosti the processed plane sometimes pickle hydrochloric acid. Its concentration is defined by the project depending on a kind of decorative plaster. After protravlivanija it is necessary to wash out a wall well water.

So arrive, in particular, at furnish of interiors and facades the decorative plaster simulating natural breeds of stones.

Technology here other, than at usual stone plasters. On the prepared surface under a rule or on beacons put the first levelling layer from a cement-sandy solution.

The Second - spreading - a layer put through 2... 3 days. A solution prepare from the cement of mark 400 dissolved with water to smetanoobraznogo of a condition. The second layer put in the thickness 3... 4 mm on small zahvatkah - 2... 5 m 2 . It is necessary to have time to put a decorative layer on a fresh covering.

The Third - decorative - a layer put a solution of such structure: cement of mark 400, a stone crumb (in the ratio 1:5 or 1:6), shut by water with small addition of the crushed mica. This solution a plaster shovel press into spreading layer. Having waited 30... 40 mines, wash out a trimmed site water from kraskopulta. Do it cautiously, conducting kraskopult from top to down and moving it across.

Processing by a special stamp (fig. 67) Further follows. Its cloth from stainless steel in the size 110X80 the mm has teeths 8X8 or 10X10 mm

Punching

a Fig. 67. Punching

Having finished punching, once again wash out a plane water and leave on 2... 3 days. Final operation - protravlivanie 7... 10%-s' solution of hydrochloric acid and washing by water.

The mechanised way of impressive furnish of concrete surfaces for structures with a marble and glass crumb Is known.

Ogruntovochnyj a layer consists from vodoemulsionnoj paints of mark ВА-17 dissolved with water to viscosity 34... 40 with (it is measured viskozimetrom ВЗ-4). It put on the dry, cleared surface by means of the fur platen or a pistol-spray.

On the dried up ground fur platens put gluing structure from integral polivinilatsetatnoj paints of mark ВА-17 (viscosity not less than 80. Use and other gluing structure is possible: paint ВА-17, marshalit (pylevidnyj quartz) and white cement in the ratio 2:1:1.

It is necessary to put Gluing structure zahvatkami in 2... 3 m 2 .

Nakryvochnyj a layer from a marble crumb with the size of grains 2... 3 mm are put on a fresh layer of gluing structure. For this purpose to the dresser it is necessary kroshkomet (fig. 59 see).

Kroshkomet represents the unit, with which help a dry crumb under the pressure of 0,15... 0,2 MPa it is put on gluing structure.

Kroshkomet has the bunker in capacity 2. „3,5 l to which air from the compressor is brought. The air line at the bottom of the bunker comes to an end with an atomizer with an external nozzle and a nozzle for crumb dispersion.

Kroshkomet keep at distance 6,4... 0,5 m from a finished surface. A crumb put movements from top to down. On finished zahvatke on border from the following leave not covered crumb a glutinous strip in width of 0,5 m - it will be covered by glue and a crumb at processing following zahvatki.

Having given it is good to dry out to a decorative covering, it cover from a pistol-spray with a protective layer - waterproof kremnijorganicheskim a varnish "Ршышъюэ-4" or akrilnym varnish АК-113.