Hollow building block

FIELD: construction.

SUBSTANCE: hollow building block, which has two side and two end walls, and at least one link parallel to end walls, which separates the block cavity. Its hollowness makes from 20% to 60%, and it is made of a mixture, which contains cement, swollen perlite sand, a solid filler with hardness of at least 1.25 and water with the following content of components, wt %: cement of grade 400 or 500 - 38-42%; swollen perlite sand of fraction 0.63…5 - 12-15%; solid filler of fraction 0…5 or 0…10 - 32-38%, water - 14-17%.

EFFECT: invention provides for strength without loss of heat insulation and weight characteristics of perlite concrete, reduced load at structures during cast-in-place concrete house building.

3 cl, 2 dwg

 

The invention relates to construction materials, in particular structural thermal insulation products, and can be used in the manufacture of wall or prostenochnyj hollow blocks.

Known construction element, which may have voids (hollow building block), which has a regular geometric shape in the form of a spatial polyhedron, and the composition of its construction parts in a mixture wt.% consists of volcanic ash 5-32, perlite sand 0-32, limestone 45-75, Portland cement-400 - 10, water - the rest (Russian Federation Patent for the invention №2173374, IPC E04C 1/00, E04C 1/40, E04C 1/41, C04B 28/00, C04B 28/04, publ. 10.09.2001).

However, the known hollow building block due to the fact that the basis of it is clay that has conductivity and physico-chemical indicators lower than the perlite, it is heavier, its surface is not ideal, i.e. the sealing of the shortcomings of the walls requires a significant plastering before putty.

The technical problem of the invention is to improve a hollow building block, which has two side and two end walls and at least one parallel to the side walls of the jumper, which divides the cavity of the block by performing block with voidness from 20% to 60% and making it out of the mixture, which contains cement, in peceny perlite sand, solid filler with hardness not less than 1,25 fraction 0...5 or 0...10, in particular screenings of building materials such as granite, basalt, limestone, etc. fractions of 0...5, or waste steel production non-ferrous metals, namely granulated slag ferronickel production, fraction of 0...5 or 0...10, and water with the following composition in wt.%: cement grade 400 or 500 - 38...42, expanded perlite sand fraction 0,63...5 - 12...15, a solid filler - 32...38, water - 14...17.

Manufacture of hollow building block it is from such a mixture provides strength without loss of thermal insulation and weight characteristics of the perlite-concrete. This enables to produce hollow articles with a volume of voids from 20% to 60%, assists in receiving high-quality surface.

Hollow building block has two side and two end walls and at least one parallel to the side walls of the jumper, which divides the cavity of the block, its voidness (volume of voids) is from 20% to 60%, and it is made from a mixture which contains cement, expanded perlite sand, particulate filler with hardness not less than 1,25 fraction 0...5 or 0...10, in particular screenings of building materials such as granite, basalt, limestone, etc. fractions of 0...5, or waste steel production non-ferrous metals, namely Gran is profiled the ferronickel slag production, fraction 0...5 or 0...10, and water with the following composition in wt.%: cement grade 400 or 500 - 38...42, expanded perlite sand fraction 0,63...5 - 12...15, a solid filler - 32...38, water - 14...17.

In mass (weight) nominal 1 m3the mixture has the following composition: cement - 185-195 kg perlite - 60-60 kg; solid filler - 156-176 kg; water - 100-110 kg In volume 1 par value in m3the mixture has the composition: cement - 0.24 to 0.29 to m3the perlite - 0,52-0,64 m3solid , filler - 0,28-0,35 m3water - 0,10-0,11 m3; i.e. the basis for volumetric index - perlite - 52-68%. The mixture provides strength without loss of thermal insulation and weight characteristics of the perlite-concrete.

In figure 1, 2 - flashy dvukhmotorny building block, respectively views in plan and side view.

Dvukhmotorny building block has two side walls 1, two end walls 2 and parallel to the side walls 2 jumper 3; voidness (volume of voids 4) unit ranges from 20% to 60%; the block is manufactured from a mixture, which contains cement, expanded perlite sand, particulate filler, namely screenings of building materials such as granite, limestone, etc., fraction 0...5 and waste steel production non-ferrous metals, namely granulated slag ferronickel production, fraction of 0...5 or 0...10 and water with the following composition in wt.%: cement grade 400 Il is 500 - 38...42, expanded perlite sand fraction 0,63...5 - 12...15, a solid filler - 32...38, water - 14...17.

Hollow building blocks are made by mixing the components of the mixture loaded into the press-form, further pressing and drying.

Made of the proposed mixture dvuhmestnye perlite blocks (wall, pristenochnye), voidness (volume of voids) which ranges from 20% to 60%, certified according to DSTU BW-7-94, DSTU BW-7-95 and GOST 21520-89 as hollow.

According to test reports, the actual characteristics of the products exceed the requirements of GOST, DSTU: the average density of the unit in a dry condition according to DSTU BW-7-94, BW-18-95 - 600 kg/ m3and test results - 402 kg/m3tested by the method GOST 12730.1-85; the deviation from straightness of edges and the flatness of the faces according to DSTU BW-7-94, BW-18-95 - not more than 6 mm, according to test results - 1 mm), tested according to the methods GOST 26433.1-89; strength of blocks in compression (wait 28 days) according to GOST 8462-85 not less kgf/sq M-25, according to test results - M-26; thermal conductivity of materials by the method according to GOST 12852.5-77 - is 0.102.

The net effect of all these parameters is the following: blocks of regular geometric shape, which gives the opportunity to lay the walls and piers are no disadvantages on the plane and length. The surface of the b blocks have small pores, which allows you to use coating without surface preparation. The surface has such training, in which the plastering for sealing defects of the walls is smaller, the surface immediately spalletta. The insulating material in the first place, lightweight, environmentally safe.

The conditional weight of a cube of material is 410-450 kg, a reduction of the loads on the structure when the monolithic frame construction. For modern gas-aerated concrete products, the average is 490-620 kg

The blocks are used as a filler in a high-rise building, without incurring the load, wall - as fencing, pristenochnye - as or intra interroom partitions. The blocks are easily cut cutting range for size reduction (if necessary), and to route the transaction. Blocks laid in cement mortar or adhesive cement.

The blocks have dimensions (mm): wall - 400×195×140, pristenochnye - 500×195×140. The possible release of sizes, which depends on the matrix and wishes of customers.

1. Hollow building block, which has two side and two end walls, characterized in that it has at least one parallel to the side walls of the jumper, which divides the cavity of the block, its voidness is from 20% to 60%, and it is made from a mixture which contains cement, in peceny perlite sand, solid filler with hardness not less than 1.25 and water with the following composition, wt.%:

cement grade 400 or 50038...42
expanded perlite sand fraction 0,63...512...15
solid filler fraction 0...5 or 0...1032...38
water14...17

2. Hollow building block according to claim 1, characterized in that it is made from a mix, which as a solid filler includes screenings of building materials such as granite, basalt, limestone, etc. fractions of 0 to 5.

3. Hollow building block according to claim 1, characterized in that it is made from a mix, which as a solid filler contains waste from steel production non-ferrous metals, namely granulated slag ferronickel production, fraction of 0...5 or 0...10.



 

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