CN201794205U - Interlocking-type self-heat-preserving wall body building block with air sandwich layer - Google Patents

Abstract

The utility model relates to an interlocking type self-insulating wall block with an air interlayer, which includes a concrete main body and foamed cement slurry filler. The concrete main body is in the shape of a character, and three cores are arranged on it. In the core hole, the foamed cement slurry filler is poured into the core hole. A rectangular groove is arranged on the top surface of the concrete main body, and an air gap penetrating up and down is arranged in the middle of the groove. The ribs and mortar joints in the middle of the blocks of the utility model are all vertically corresponding to the core hole, and the air interlayer and the foamed cement slurry filler block the heat conduction along the block ribs or mortar joints, the wall structure is more integral, and the wall structure is completely eliminated. The cold bridge maximizes the thermal insulation effect of the block, and the thermal insulation performance is better. The structure is simple and reasonable, the cost is low, the construction speed is fast and the efficiency is high.

Description

Interlocking self-insulating wall blocks with air interlayer

technical field

The utility model relates to a building material, in particular to an interlocking type self-insulating wall block with an air interlayer.

Background technique

At present, wall materials are mainly divided into two categories: blocks and plates. The blocks are mainly: sintered clay porous bricks, hollow bricks, sintered shale bricks, aerated concrete blocks, lightweight aggregate concrete blocks, ordinary concrete blocks, etc.; the boards for external walls are mainly insulation materials and inner sandwich composite walls body. Among them, block material is still the mainstream wall material. At present, the insulation walls used in the project mainly include: ordinary block external insulation system, aerated concrete block external insulation system, ordinary hollow block internal benzene board system, sintered hollow brick system, etc. In new buildings, ordinary blocks plus external insulation system are the most common.

Ordinary blocks are used as wall materials and benzene boards are used as thermal insulation and energy-saving technology. Although the thermal insulation and energy-saving effect is good, there are also the following disadvantages that are difficult to overcome, mainly: (1) The construction operation is complicated and the construction period is long; (2) The construction quality It is also difficult to be guaranteed; (3) there is a fire prevention problem in the outer insulation layer; (4) the cost is high. We also know that the main body structure of traditional blocks is rectangular, with widths of 390mm, 290mm, 240mm, 190mm, etc., and different thicknesses can be designed into single, double or triple rows of holes. There are two deficiencies in the traditional block structure: (1) The connection between blocks forms a cold bridge on the wall, which is unfavorable to the overall thermal insulation performance of the wall. (2) The inside of the block is a cavity, and the temperature difference between the inside and outside of the wall causes the internal air to form convection, which cannot achieve the ideal thermal insulation effect.

The Chinese patent 2009203126025 proposed by the applicant discloses a chain-type self-insulating wall block, which includes a concrete body and foamed cement slurry filler, and the plane of the concrete body is T-shaped or a T-shaped combination, wherein There are several core holes penetrating up and down, and the foamed cement slurry filler is poured into the core holes of the concrete main body. After the foamed cement slurry is hardened, it forms a composite self-insulating block with the main body of the block concrete on the outside. During the masonry, the adjacent blocks are interlocked with each other, and the wall structure has a strong integrity. The heat conduction of the mortar joints eliminates the cold bridge of the wall and improves the insulation effect of the blocks. But the insulation performance still needs to be improved.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the deficiencies of the above-mentioned prior art, and provide a chain-type self-insulating wall masonry with air interlayer with simple and reasonable structure, low cost, fast construction speed, high efficiency, and excellent thermal insulation performance. piece.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: an interlocking self-insulating wall block with an air interlayer, which includes a concrete main body and foamed cement slurry filler. There are three core holes penetrating up and down on it, and foamed cement slurry filler is poured into the core holes. It is characterized in that: a rectangular groove is provided on the top surface of the concrete main body, and an air gap penetrating up and down is provided in the middle of the groove.

Said groove of the utility model runs through along the axial direction of the wall body on the top surface of the concrete main body, and its width is 20-35mm, and its depth is 5mm.

The said character-shaped concrete main body of the utility model is made up of two cuboids, large and small, and a strip-shaped boss is vertically provided on the inner side of the big cuboid.

The two ends of the large cuboid of the character-shaped concrete main body of the utility model are vertically provided with strip-shaped bosses, so that the end faces form a groove.

In the utility model, an air gap is added in the middle part of each concrete main body, and the thermal insulation performance is better; when building masonry, the adjacent blocks are interlocked with each other, and the inner block and the outer block of the wall are separated by means of strip-shaped protrusions on the inner side of the large cuboid. The platform also forms an air gap, and the interior of the entire wall forms a discontinuous air interlayer along the axis of the wall in the vertical direction. Perpendicular to the axis of the wall, the end face of the large cuboid is in contact with the end face of the small cuboid, and the mortar is only laid along the strip-shaped boss. The blocks form cavities, which also form air interlayers. Compared with the prior art, the ribs and mortar joints in the middle of the blocks of the utility model are vertically corresponding to the core hole, and the air interlayer and the foamed cement slurry filler block the heat conduction along the block ribs or mortar joints, and the wall structure is more integral. The cold bridge of the wall is completely eliminated, the thermal insulation effect of the block is improved to the greatest extent, and the thermal insulation performance is better. The structure is simple and reasonable, the cost is low, the construction speed is fast and the efficiency is high.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a schematic top view of FIG. 1 .

Fig. 3 is a schematic diagram of masonry combination connection of the present invention.

The symbols in the figure are: 1. Concrete body, 2. Foamed cement slurry filler, 11. Groove, 12. Air gap, 13. Boss, 14. Boss.

Detailed ways

It can be seen from Fig. 1 and Fig. 2 that an interlocking self-insulating wall block with an air interlayer includes a concrete main body 1, foamed cement slurry filler 2, etc., and the concrete main body 1 is in the shape of a character The structure is provided with three core holes penetrating up and down, and the foamed cement slurry filler 2 is poured into the core holes to form a composite self-insulating block. The material used for the concrete body 1 is: Portland cement with a strength grade of 42.5 or 32.5 (Portland cement, ordinary Portland cement, slag Portland cement, fly ash Portland cement, pozzolan silica salt cement) as the cementitious material, use broken construction waste as coarse and fine aggregate to replace or partially replace natural sand and stone materials, or use expanded perlite to replace or partially replace sand and gravel aggregate to form lightweight concrete blocks main body. In addition, there are water and admixtures. Among them, the admixture is a high-efficiency water reducer and early strength agent available in the market. The concrete is mixed in a forced mixer and pressed into shape with a block forming machine. After the product is formed, it is put into the curing kiln together with the pallet for steam curing. Said foamed cement slurry filler 2 is first made into a solution with foaming agent and water, and the process of making foam is completed by a foaming machine. The slurry foam made by foaming is poured into the core hole of the block concrete main body 1 with a supporting plate, and the internal foamed cement slurry filler is cured under normal temperature conditions. After the internal foamed cement slurry filler is hardened, the A foamed cement slurry composite concrete insulation block is formed. Adjacent blocks are interlocked and interlocked during masonry, and the ribs and mortar joints in the middle of the blocks are vertically corresponding to the core hole. The foamed cement slurry filler blocks heat conduction along the block ribs or mortar joints, eliminating the cold bridge of the wall. Improve the insulation effect of the block.

The utility model is characterized in that: the top surface of the concrete main body 1 is provided with a rectangular groove 11, and in the middle of the groove 11 is provided with an air gap 12 penetrating up and down. Said groove 11 of the utility model runs through along the wall axis direction on the concrete main body 1 top surface, and its width is 20-35mm, and depth is 5mm. When laying masonry, place expanded polystyrene (EPS) slats of corresponding width and thickness of 10-20mm in the groove 11. Seam heat conduction eliminates horizontal seam cold bridges. Said character font concrete main body 1 of the utility model is made up of two cuboids, big and small, and vertically is provided with strip boss 13 on the big cuboid inner side. During masonry, the adjacent blocks are interlocked with each other, and air gaps are also formed between the inner block and the outer block of the wall by means of the strip-shaped boss 13 on the inner side of the large cuboid, and each block concrete body 1 With the air gap 12 provided, a discontinuous longitudinal air interlayer is formed inside the entire wall along the axis of the wall in the vertical direction, and the thermal insulation performance is better. As shown in Figure 3.

The said product type concrete main body 1 of the utility model is vertically provided with strip boss 14 on both ends of the big cuboid, and the end faces form grooves. In this way, the end of the block is designed as a groove, and the mortar is only laid vertically along the strip boss 14, so that most of the vertical mortar joints remain cavities, and an air interlayer is also formed perpendicular to the axis of the wall. As shown in Figure 3.

The interior of the core hole of the block concrete main body of the utility model is filled with foamed cement slurry filler with excellent thermal insulation performance. After the foamed cement slurry is hardened, it forms a composite self-insulating block with the outer block concrete main body. The ribs and mortar joints in the middle of the block are uniform. Corresponding to the core hole vertically, the air interlayer and the foamed cement slurry filler block the heat conduction along the block ribs or mortar joints, the wall structure is more integral, the cold bridge of the wall is completely eliminated, and the block's thermal conductivity is maximized. Thermal insulation effect, thermal insulation performance is better. The structure is simple and reasonable, the cost is low, the construction speed is fast and the efficiency is high.

The overall dry volume density of the utility model is ≤ 950kg/m ³ ; the grade of compressive strength of the main body of the block is C5-C30; the grade of the compressive strength of the composite block is MU2.5-MU20; the porosity of the main body of the blocks of different specifications is 50 %~60%, the heat transfer coefficient is 0.38W/m ² ·K for 290mm thickness, 0.55W/m ² ·K for 240mm thickness, and 0.72 W/m ² ·K for 190mm thickness, which is far less than the national energy-saving building design standards meet the requirements of the relevant national standards on energy saving of 65%.

Claims (4)

1. A chain-type self-insulating wall block with an air interlayer, which includes a concrete main body and foamed cement slurry filler, and the concrete main body is a character-shaped structure, which is provided with three core holes connecting up and down, The foamed cement slurry filler is poured into the core hole, and the feature is that: the top surface of the concrete main body is provided with a rectangular groove, and an air gap penetrating up and down is provided in the middle of the groove. 2. The interlocking type self-insulating wall block with air interlayer according to claim 1, characterized in that: said groove runs through the top surface of the concrete body along the axis of the wall, and its width is 20-35mm. The depth is 5mm. 3. The interlocking type self-insulating wall block with air interlayer according to claim 1, characterized in that: strip-shaped bosses are vertically provided on the inner side of the large rectangular parallelepiped of the said character-shaped concrete main body. 4. The interlocking type self-insulating wall block with air interlayer according to claim 1, characterized in that: strip bosses are vertically arranged on both ends of the large rectangular parallelepiped of the said character-shaped concrete main body.

Images