The first production of silica brick was founded in the late XIX century in Germany. In Russia, the first factories were running at the beginning of the XX century. Over the years, improved quality and quantity for the production of calcium silicate bricks , Thanks to scientists working in the production of binders and building materials. Silicate brick – an environmentally friendly building material. Its component parts: lime, sand, water. He is very widely used in developed countries due to its characteristics: stability, accuracy in the geometric dimensions, aesthetic appearance, a small cost and ease of use.
Manufacturing technology of silicate Brick is as follows: lime-sand mixture, consisting of burnt lime, silica sand and water, is placed in an autoclave (an apparatus for processing products with steam under high pressure), where under the influence and pressure temperature forms a silicate compound. It is now widely used by different dyes, which give a wide range of brick colors and shades, as well as the addition of modifiers, which give the silicate brick increased strength, frost and other species number is very large brick – brick is made even yellow, blue and pink. Closed Joint-Stock Company "VKSM" (formerly "VZSK") was founded in 1955. For his half-century of existence has become a leader in building materials. At this time, the company produces silicate bricks and stones. These materials are made Pressed wet mixture, consisting of natural sand and lime, followed by curing in an autoclave (termovlazhnostnaya treatment under saturated vapor pressure).
Calcium silicate bricks and stones used for masonry bearing walls, facing them, and wall coverings made of other materials, as well as for reconstruction of residential and public buildings. Building bricks are made with through hollow (perforated) or non-through (pyatistenny) cavities located perpendicular to their beds. Single brick has a size or 250x120h65 250h120x88 mm, and the Bastard – 250x120x103 mm. Volumetric weight (gross) hollow brick is divided into two classes: B – with density 1300 kg / m, B – with density 1300 – 1450 kg / cu.m. Y pyatistennogo brick surround gross weight must not exceed 1500 kg / cu.m. Water absorption brick not less than 6% (by weight), and frost for at least 15 cycles. In laying out pyatistennogo brick is formed of vertical holes, and the existing closed cavities improve the thermal insulation properties of masonry. Perforated brick and pyatistenny used along with ordinary. Do not use perforated brick masonry foundations and underground Parts of the walls, stoves and flues. Bricks are used for masonry low-rise buildings, the upper floors of tall buildings. You may not use the brick masonry foundations, bases below waterproofing layer, furnaces and flues. The relatively low weight and reduced thermal conductivity of bricks can facilitate weight of the structure as possible to reduce the thickness of the walls and the number of bricks in masonry. silicate brick