CN201416227Y - Core foam concrete self-insulation broken bridge block - Google Patents

Abstract

This utility model relates to exterior wall bricks for construction engineering, specifically core foam concrete self-insulation broken bridge blocks, including hollow cylindrical composite concrete shells with transparent bottoms and bottomless upper and lower ends and filled with cylindrical cavities. Cement fly ash foam. The block is in the shape of a cuboid, which is divided into three sides of length, width and height. The bottom surface where the long side and the wide side of the shell are located is inlaid with an insulating plate along the direction of the long side. On the left side where the wide side and the high side of the shell are located And/or the right side is inlaid with a thermal insulation plate along the high side direction. The utility model ends the phenomenon that the original block-type masonry ash hole penetrates through the straight seam and causes serious heat loss, and has a good heat preservation effect, and has low cost, a hundred-year service life, and extremely high energy-saving, saving, and waste-use effects. , is an ideal substitute for energy-saving and thermal insulation wall materials.

Description

Core foam concrete self-insulation broken bridge block

technical field

The utility model relates to exterior wall bricks for construction engineering, in particular to a core-core foamed concrete self-insulating broken bridge building block.

Background technique

Existing external walls of construction projects, in recent years, generally adopt the construction method of slag slag concrete hollow blocks and external wall polystyrene board insulation, there are many common problems, the main manifestations are: slag hollow blocks contain carbon High weight, fast aging, large shrinkage, low strength, extremely poor frost resistance and impermeability, weak combination of blocks and surface mortar, inability to paste the outer surface layer, serious hollowing cracks, and wall cracks increase year by year , There is too much damp and mold in the interior walls and door and window openings. In addition, underground coal combustion contains different radioactive substances. In the remaining 10 tons of slag after every 100 tons of coal is burned, radioactive substances are highly concentrated, and some products can cause harm to the human body. Due to the cracks in the slag brick wall and the shrinkage of the polystyrene board of the external wall insulation layer, the adhesion is not firm, the strength of the surface layer of glass fiber mesh is low, the weather resistance of light radiation is poor, and the original block-type masonry ash hole runs through the straight seam, resulting in heat loss. Serious and other reasons, the external thermal insulation surface of the external wall appears in a short period of time: serious cracks, leakage, reduced thermal insulation effect, falling off year by year, the bottom layer and the external thermal insulation layer of the door and window openings are easily broken, falling off and hurting people, flammable and toxic, construction Complexity, high cost, high maintenance and replacement costs and many other disadvantages,

People in the industry and experts agree that: the outer wall of the slag hollow brick and the original block shape have proved to have many disadvantages in practice, especially the petrochemical insulation material used for the outer wall is used for composite insulation (polystyrene board insulation), and its service life is short. 1. It needs to be repaired every few years, and it needs to be dismantled and replaced in more than ten years, resulting in the waste of a lot of funds and resources and the serious aftermath left by the discharge of toxic waste. There is no ideal substitute for bitterness.

Utility model content

In order to completely solve the above problems, the purpose of this utility model is to provide a new type of concrete self-insulation broken bridge block with broken bridge, heat preservation, high strength and good application effect, which is an ideal substitute for the existing external wall and thermal insulation wall .

In order to achieve the above object, the technical solution adopted by the utility model is:

The core foam concrete self-insulating broken bridge block includes a hollow cylindrical composite concrete shell with transparent upper and lower ends without a bottom and a cement fly ash foam body filled in the cylindrical cavity. The block is a cuboid Shape, divided into three sides of length, width and height;

Insulation plates are inlaid along the direction of the long sides on the bottom surface where the long sides and wide sides of the housing are located, and insulation panels are inlaid along the direction of the high sides on the left side and/or right side where the wide sides and high sides of the housing are located.

The insulation board is a strip polystyrene board, and the strip polystyrene board is laid flat on the shell, a part is embedded in the shell, and the remaining part protrudes from the surface of the shell; the width of the strip polystyrene board is 40-80mm; The part of the strip-shaped polystyrene board inlaid in the shell, and the two end faces corresponding to the width direction of the shell are respectively provided with concave slots, and the shell that is in contact with it is provided with symmetrical convex ribs. The benzene board and the shell are fixed in the form of concave-convex grooves to form a broken bridge layer, and the foam is firmly attached to the composite concrete shell; the grooves and ribs are triangular or U-shaped.

The cement fly ash foam body filled in the cylindrical cavity is horizontally and/or longitudinally provided with support layers or reinforcing ribs made of the same material as the shell from top to bottom as intervals.

The utility model has the following advantages:

1. High strength. The 2cm ultra-thin outer shell of the core foamed concrete self-insulating broken bridge block of the utility model is made of c25 grade high-strength and high-density concrete. The inner hole is made of cement and fly ash through physical foaming, and the density is 200kg. /m ³ , high-tech ultra-light foamed thermal insulation concrete; it has many advantages that other wall materials cannot match, such as hard appearance, load-bearing, lifespan of a hundred years, and no aging of inner core insulation. It is a major innovation and breakthrough in the combination of production technology and wall material quality and performance. It is the same material as the concrete used in the main engineering structure, which ensures that the building structure and the wall are under natural conditions. The synchronization of expansion and contraction changes in temperature and humidity differences It provides a high-quality foundation and quality assurance for the finishing project.

2. Broken bridge, good heat preservation effect and low cost. Self-insulating broken bridge blocks, the left and right ends and the bottom surface are inlaid with polystyrene plates with a width of about 40-80mm, which are higher than the shell and block the outer walls of the two sides of the block and the mortar of the masonry wall. The thermal bridge of the opening fundamentally solves the situation that the heat loss of the original block type is as high as about 25% caused by the upper and lower, vertical ash openings in the masonry. On the basis of the existing energy-saving products, the energy-saving product is improved by about 20%, which ensures its own quality and makes the wall thinner, increases the usable area, and reduces the cost of products and projects.

Description of drawings

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

Figure 2 A-A sectional view of Figure 1.

Detailed ways

Example 1

As shown in Figure 1-2, the core foamed concrete self-insulating broken bridge block is an ultra-thin concrete shell 1. The upper and lower sides are transparent and bottomless, and the cavity is cylindrical. The foamed concrete insulation slurry is filled in the hollow to form cement fly ash foaming. Body 2, the fly ash cement foam inner layer is a honeycomb structure with holes.

The block is in the shape of a cuboid, which is divided into three sides of length, width and height. The bottom surface where the long side and the wide side of the shell 1 are located is inlaid with an insulating plate 3 along the long side direction, and the wide side and the high side of the shell 1 are located The left side and the right side are inlaid with thermal insulation panels 3 along the high side direction; the thermal insulation panels are strip polystyrene boards with a width of 40-80 mm, and the strip polystyrene boards are laid flat on the shell 1, and a part is embedded in the Inside the shell 1, the remaining part protrudes from the surface of the shell 1;

The part of the strip-shaped polystyrene board embedded in the shell 1 and the two end faces corresponding to the width direction of the shell 1 are respectively provided with a triangular concave slot, and the shell 1 in contact with it is provided with a symmetrical triangular Convex ribs, strip-shaped polystyrene boards are firmly connected to the shell 1 in the form of concave-convex grooves to form a bridge-breaking layer, and the foam body is firmly attached to the composite concrete shell; when in use, it can effectively block the loss of heat.

In order to increase the strength of the block, the cement fly ash foam body 2 filled in the cylindrical cavity is horizontally and vertically provided with a composite concrete support layer or reinforcing layer of the same material as the shell from top to bottom as a spacer. ribs.

During production, the composite concrete is first put into the mould, and the outer surface is formed by mechanical extrusion to form a longitudinally hollow brick composite concrete outer layer 1, with a pressure above 12-15 MPa, and a crushed stone concrete shell; both ends of the shell and The polystyrene board at the bottom is combined with the shell at one time during production; then the slurry is made of fly ash and cement through physical foaming, and then the slurry is poured into the shell, and after steam curing, a micro The fly ash cement foam inner layer 2 with a closed hollow honeycomb structure, the fly ash cement foam inner layer 2 is firmly combined with the composite concrete outer layer 1, and the broken bridge layer of polystyrene board and the composite concrete outer layer are tightly embedded in the Together to form core foam concrete self-insulation broken bridge blocks.

(1) The weight composition of composite concrete shell raw materials can adopt the following range: 20% of ordinary Portland cement, 20% of sand, 60% of crushed stone, and 5% of the total weight of the above three raw materials;

First, the raw materials of the composite concrete shell are evenly stirred and put into the mould, and the exterior is mechanically extruded to form a longitudinally hollow brick composite concrete shell 1;

(2) The range that the cement fly ash foam body 2 raw material weight forms can adopt is: ordinary portland cement 40%, fly ash 40%, foaming agent 20%; Mixed into cement fly ash foam body 2 During the foaming slurry, the weight content of water in the foaming slurry body is 80%;

Foaming agent weight composition: 3% rosin, 2.4% vegetable oil and/or animal oil, 2.4% caustic soda, 2.6% bone glue or skin glue, 2.2% waterproofing agent, 2.4% foam stabilizer, 1.9% latex white glue, 0.1% water-soluble Resin (such as phenolic resin), 3% crop waste (such as: straw, corn stalks);

The use of the above-mentioned foaming agent solves the problems of expansion, cracking and collapse caused by pouring the foaming thermal insulation slurry concrete into the core after the thermal insulation block can be formed, so that the product can be formed at one time during production.

After mixing the raw materials of the foaming agent, add water 10 times the weight of the foaming agent therein, and stir it into a solution at 80°C; 80% of the final total weight of the cement fly ash foam body 2 is the water agent, and the ordinary silicon 40% salt cement, 40% fly ash and the remaining water after foaming agent are stirred into cement fly ash slurry, and the foaming agent solution is poured into the cement fly ash slurry under the condition of high-speed shearing machine stirring Form the foaming slurry of the cement fly ash foamed body 2 in the middle.

The core foam concrete self-insulation broken bridge block of the utility model can prevent cold, fire prevention, seepage prevention, heat preservation and load bearing. It is the last reform of the wall block structure. There are energy-saving standard requirements, and the main common problems are: low strength, below 5MPa, high water absorption, poor frost resistance, leakage, peeling of the external wall, shrinkage cracks, no heat preservation, and external wall insulation is required; horizontal mortar joints on the wall, due to hollow reasons , The contact area is small and the cold, penetration, earthquake resistance, peeling, etc.; bring difficulties to property management and high maintenance costs and other disadvantages.

The characteristics of the core core foamed concrete self-insulating broken bridge block of the utility model are: high strength, above 15MPa, improved earthquake resistance level, broken bridge (blocking the horizontal and vertical gray joints of the wall body), antifreeze, impermeability, cold protection, heat preservation ( No need to do any heat preservation treatment), aging resistance, permanent performance, easy construction, completely change the common problems of the original standard bricks and other hollow blocks. At the same time, it solves the problems of energy saving and heat preservation. It is an incomparable new product for the original wall materials.

In a word, the utility model changes the structural characteristics of blocks and solves the common problems of traditional blocks, uses fly ash and broken bridge layers to solve wall insulation, save energy, and the price is far lower than the cost of external wall insulation; increase the use of external walls Long life, beautify the environment, fast construction, low cost and many other advantages.

Claims (6)

1. core foamed concrete self-heat conserving bridge cut-off building block, the hollow tube-shape composite concrete shell (1) and the interior cement fly ash foaming body (2) of filling of tubular cavity that comprise the penetrating no end of upper/lower terminal, it is characterized in that: described building block is a rectangular shape, is divided into length three limits;

Be inlaid with insulation plate (3) on long limit of shell (1) and the residing bottom surface of broadside along long side direction, be inlaid with insulation plate (3) at shell (1) broadside and the high edge direction of residing left surface of flash and/or right flank upper edge.

2. according to the building block of the described core foamed concrete of claim 1 self-heat conserving bridge cut-off, it is characterized in that: described insulation plate is the strip polyphenyl plate, the strip polyphenyl plate is tiled on the shell (1), and a part is embedded in the shell (1), and remaining another part protrudes in the surface of shell (1).

3. according to the building block of the described core foamed concrete of claim 2 self-heat conserving bridge cut-off, it is characterized in that: described strip polyphenyl plate width is 40-80mm.

4. according to the building block of the described core foamed concrete of claim 2 self-heat conserving bridge cut-off, it is characterized in that: described strip polyphenyl plate is embedded in the interior part of shell (1), is respectively equipped with the draw-in groove of indent corresponding to two end faces of shell (1) broadside, the corresponding shell (1) that contacts with it is provided with the fin of symmetry, strip polyphenyl plate and shell (1) are affixed with the tongue and groove form, form the bridge cut-off layer, foaming body is firm is attaching the composite concrete shell.

5. according to the building block of the described core foamed concrete of claim 4 self-heat conserving bridge cut-off, it is characterized in that: described draw-in groove and fin are triangle or U-shaped.

6. according to the building block of the described core foamed concrete of claim 4 self-heat conserving bridge cut-off, it is characterized in that: cement fly ash foaming body (2) intermediate lateral of filling in the described tubular cavity and/or be vertically arranged with from top to bottom conduct at interval with supporting layer or the reinforcing rib identical material of shell.

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