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Building Materials

August 12, 2017 18:08

Silicate bricks for the construction of self-supporting and non-bearing walls with his own hands

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properties of silica brick

lime brick, along with ceramic, widely used in construction.This is due to its superior performance.Here they are.Firstly, high value strength that exceeds even the performance of some lightweight concrete.The average service life of about 50 years.

Secondly, frost , which allows its use even under harsh temperature changes and unpredictable climatic conditions.In fact, thermal conductivity of sand-lime brick ranges from 0.38 to 0.70 W / m ° C. Thirdly, environmental cleanliness .Create content on the ancient technology of sand and lime.Fourth, good sound insulation, which allows to use it not only in homes but also in the construction of civilian facilities.

Fifth, wide range and various types color allow you to select any kind of a corresponding design.This variety of colors is achieved after the addition of suitable pigments.Especially popular silicate brick red and white.

Sixthly, simplicity of maintenance.This material has resistance to almost any external factors (except water).Over time, he does not lose its marketability and always looks great.And, seventh,

economy .Such ceramic brick is much cheaper.

production of silica brick

this brick is made in two ways: by means of steam or without it.In the first embodiment, it creates a form of quartz sand and air lime in a ratio of 9: 1.Also, there is filled with water and additives (eg, weather-resistant pigments to produce colored bricks).Then this entire structure passes autoclaving, i.e. impact vapor pressure of about 8-12 atm.and a temperature of 170-200 ° C.After it is necessary to dry in the open air for 12 hours.

second manufacturing method is almost identical, only it implies the absence of steam.Mix the water, sand, slaked lime and lasting about 10 hours.Next, make the dry pressing.Producing it in accordance with GOST 379-95, according to which the silicate brick size is 250h20h88 mm 250h120h65 mm.

When interested in other specifications , also often the question arises - how much weight lime bricks?Weight it averages 3.5-3.6 kg (single) and thickened (bastard) - about 4 kg.The compressive strength of both - 15-20 MPa.Frost - about 35 cycles.Density - 1840-1933 kg / m3.With regard to color: white brick can be a silicate, as well as red, brown, orange.

Scope of use of silica brick

As already mentioned, the brick used for the construction of self-supporting and load-bearing walls in multi-storey and single-storey houses and buildings.Also, it is used to create partitions.House of sand-lime brick is extremely durable and reliable, but the walls will have a proper sound and heat insulation.

Especially popular this material and decorative finishes (fences, playgrounds, terraces, architectural buildings).But do not think that it can be applied in all areas.Due to the low corrosion-resistant and waterproof they are not being built plinths of buildings and foundations.It is proved by the fact that the impact of sulfur salts in the groundwater, leading to the destruction of this material.

Also, they can not spread the chimneys and stoves.This is due to the fact that under the influence of temperature this brick begins to collapse: there are even cases where the material is broken, and even explode.Therefore not worth the risk and use it as a decorative stone.

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