CN202644775U - Prefabricated sandwich external wall panel with thermal insulation concrete - Google Patents

Abstract

The utility model discloses a prefabricated sandwich thermal insulation concrete exterior wall panel, which adopts a composite wall panel integrating wall body, thermal insulation and architectural decoration from inside to outside, the wall body is a load-bearing concrete structure layer, and the middle part is The thermal insulation board, the outermost is the building decoration external hanging board, the three floors are connected into a whole through the insulation connector, and it is applied to the assembly of the integral shear wall structure or the assembly of the integral frame-shear wall structure and meets the requirements of building energy saving and fire prevention Composite exterior wall panels. The product is prefabricated in the factory and installed on site, with high production and construction efficiency and guaranteed quality; energy saving and environmental protection, fire prevention and heat preservation, and significant comprehensive benefits.

Description

A prefabricated sandwich thermal insulation concrete exterior wall panel

technical field

The utility model relates to a prefabricated sandwich thermal insulation concrete exterior wall panel, in particular to a composite exterior panel which is applied to assemble an integral shear wall structure or an integral frame-shear wall structure and meets building energy saving and fire prevention requirements. wall panels.

technical background

The current situation of my country's real estate development: First, 90% of the buildings are high-energy buildings with poor insulation and heating, and construction has become one of the industries with the largest energy consumption; second, with the acceleration of urbanization, the speed of construction is required to be accelerated accordingly. Therefore, adopting industrial production technology with energy-saving and environmental protection functions should be the development direction of the real estate industry in the future.

So far, there are many technologies in external wall insulation. The patent 200920052366.8 "a new type of composite building structure board" announced on February 17, 2010 is two pressure fiber cement boards and a lightweight material core placed between the two pressure fiber cement boards. The composite board cannot be used in the shear wall structure. Patent No. 200910017529.3 published on January 13, 2010 "A method for making thermal insulation exterior wall panels" is mainly applicable to on-site construction. The thermal insulation layer is sprayed on the inner surface of concrete with inorganic thermal insulation materials such as foamed cement and expanded perlite. Insulation connectors, the surface of the insulation layer is sprayed with a mortar layer. The patent 200720187544.9 announced on October 22, 2008 "Heat and sound insulation steel wire mesh cage concrete load-bearing shear wall" has the same concrete structure layers on both sides of the insulation layer, both of which are load-bearing structures, while the inner wall of the present invention is a load-bearing structure, and the outer It is an external hanging board and can be used as a decorative surface.

After a fire broke out in the teacher's apartment on the 28th floor of Jiaozhou Road in Shanghai in 2010, the Ministry of Public Security and the Ministry of Housing and Urban-Rural Development issued the "Interim Regulations on Fire Protection of Civil Building External Thermal Insulation Systems and External Wall Decoration", which stipulated the requirements for the thermal insulation materials used in different buildings. Combustion performance puts forward clear requirements. It is required that the external thermal insulation system should use non-combustible or flame-retardant materials as the protective layer, and the protective layer should completely cover the thermal insulation material. Therefore, it is the future development trend of the construction industry to look for a kind of heat preservation and fireproof outer envelope structure.

Contents of the invention

In the prior art, there are problems such as poor thermal insulation performance, cumbersome process and difficulty in guaranteeing construction quality in on-site construction of building envelope structures. The purpose of this utility model is to provide a new type of composite exterior wall panel with a decorative surface that can meet the requirements of heat preservation and energy saving, and can be used to assemble an integral shear wall structure or an integral frame-shear wall structure. The product is prefabricated in the factory, installed on site, with high production and construction efficiency and guaranteed quality.

The purpose of this utility model is achieved through the following measures:

The utility model prefabricated sandwich thermal insulation concrete exterior wall panel is designed in this way: From the inside to the outside, a composite wall panel integrating wall-insulation-building decoration is used. The wall is a load-bearing concrete structure layer, the middle is a thermal insulation board, and the outermost is a building decoration external hanging board. The three layers are connected into a whole through thermal insulation connectors. It is used to assemble integral shear wall structures or assemble integral frames. - Composite exterior wall panels with shear wall structure and meeting building energy-saving requirements.

The thickness of the prefabricated sandwich heat-insulating concrete outer wall panel is 150-200mm, and the reinforcement cage is pre-embedded in the wall.

Water and electricity pipelines, metal embedded parts and switch sockets can be pre-embedded in the prefabricated sandwich thermal insulation concrete exterior wall panel.

The insulation board materials in the prefabricated sandwich insulation concrete exterior wall panels should be light and efficient insulation materials such as extruded polystyrene board (XPS), rigid polyurethane foam (PUR), and the thickness of the insulation board is 30-50mm.

The thickness of the external hanging panels in the prefabricated sandwich thermal insulation concrete external wall panels is 50-100mm, and ordinary concrete, fine stone concrete or mortar can be used, and steel wire mesh sheets are pre-embedded inside.

The thermal insulation connectors in the prefabricated sandwich thermal insulation concrete exterior wall panels should adopt non-metallic connectors with good thermal resistance.

The prefabricated sandwich insulation concrete exterior wall panels can pre-embed doors and windows, so that the doors, windows and exterior wall panels are integrated.

The interface between the wall body of the prefabricated sandwich thermal insulation concrete exterior wall panel and the cast-in-place concrete is a water-washed exposed aggregate surface.

The surface of the prefabricated sandwich heat-insulating concrete exterior wall panel can be decorated with paint, colored concrete, brick or stone.

The utility model and the prior art have the following beneficial effects:

①The quality of prefabricated sandwich insulation concrete exterior wall panels is better than that of on-site construction, because the production is completed in the factory, the mold making precision is high, the error is small, the size is more standard, the binding and positioning of steel bars, concrete pouring, embedded parts and water and electricity pipelines The installation can be accurate; the doors and windows are embedded in the exterior wall panels, and the doors, windows and exterior wall panels are integrated into one, which has the characteristics of waterproof and anti-leakage, avoiding most of the "common quality problems" of construction, making the construction quality easier control.

②The prefabricated sandwich insulation concrete exterior wall panels can ensure the same lifespan of the insulation layer and the structure, and the insulation connectors can avoid thermal bridge effect and improve the effect of heat preservation and energy saving.

③ Prefabricated sandwich thermal insulation concrete exterior wall panels are used to assemble integral shear wall structures or integral frame-shear wall structures, and have good seismic effects, especially better than traditional "big board houses".

④ Concrete is used as the protective layer on both sides of the insulation board in the prefabricated sandwich insulation concrete exterior wall panel. The protective layer completely covers the insulation board, which has a good fireproof function, and the combustion performance grade of the outer wall board can reach Class A.

⑤ Factory prefabrication, production is not affected by time and weather; on-site installation, construction efficiency is improved, and environmental pollution is reduced at the same time, with significant comprehensive benefits.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a composite exterior wall panel of the present invention.

Figure 2 is a schematic diagram of the connection between the insulation board and the wall and the external hanging board.

Figure 3 is a schematic diagram of the structure inside the wall.

Detailed ways

The utility model prefabricated sandwich thermal insulation concrete exterior wall panel adopts a composite wall panel integrating wall body, thermal insulation and architectural decoration from the inside to the outside. The wall 1 is a load-bearing concrete structure layer, the middle is a thermal insulation board 2, and the outermost is a building decoration external hanging board 4. The three layers are connected into a whole through thermal insulation connectors, and it is used in the assembly of integral shear wall structures or assembly A composite exterior wall panel with an integral frame-shear wall structure and meeting building energy-saving requirements.

The wall body 1 of the prefabricated sandwich heat-insulating and heat-insulating concrete exterior wall panel has a thickness of 150-200mm, and a reinforcement cage 14 is pre-embedded in the wall body.

Water and electricity pipelines, metal embedded parts and switch sockets can be pre-embedded in the wall body of the prefabricated sandwich heat-insulating and heat-insulating concrete exterior wall panel.

The insulation board 2 in the prefabricated sandwich insulation concrete exterior wall panels should be made of lightweight and high-efficiency insulation materials such as extruded polystyrene board (XPS), rigid polyurethane foam (PUR), and the thickness of the insulation board 2 is 30-50mm.

The prefabricated sandwich thermal insulation concrete exterior wall panel 4 has a thickness of 50-100 mm, and ordinary concrete, fine stone concrete or mortar can be used, and steel wire mesh sheets 3 are pre-embedded inside.

The thermal insulation connector 8 in the prefabricated sandwich thermal insulation concrete exterior wall panel should adopt a non-metallic connector with good thermal resistance.

The prefabricated sandwich insulation concrete exterior wall panels can pre-embed doors and windows 13, so that the doors, windows and exterior wall panels are integrated.

The interface between the wall body of the prefabricated sandwich insulation concrete exterior wall panel and the cast-in-place concrete is the water-washed exposed aggregate surface 5 .

The surface of the building decoration external wall panel 4 of the prefabricated sandwich thermal insulation concrete external wall panel can be finished with paint, colored concrete, or with brick or stone.

The utility model is produced by the following methods:

1. Clean the mold table. The surface of the mold table is required to be smooth and flat, without rust, and the residual cement slurry should be removed with metal tools.

2. Side mold installation. After the mold table is cleaned, install it to ensure that the fixed magnetic box can be effectively absorbed. Check whether the formwork table is in effective contact with the side formwork (9) to prevent grout leakage; then apply concrete washing agent on the contact surface between the side formwork (9) and the concrete, and brush the mold release agent on the formwork platform. the

3. Fabrication and installation of reinforcement cage (14). The steel bar of component is made according to the figure, is tied up, directly hangs to formwork table installation after forming the reinforcement cage (14) integral body. For the reinforcing bar (10) that protrudes from the mould, it can be temporarily fixed during binding, and then fixed and bound after passing through the hole of the side mold (9).

4. Window formwork (13) is installed. Window mold (13) is made up of two molds with different sizes and distinct slopes. The two molds are fixed by four-corner through-hole screws. The bottom and the contact surface of the mold table are fixed by a magnetic box. In order to prevent gaps, a layer of foam tape can be pasted on the bottom of the window mold.

5. Embedded parts (11), (12) are placed and holes are reserved. Wall panel embedded parts and reserved holes include: edge component steel mold connection sleeve (12), temporary support sleeve, vertical lifting sleeve, reserved opening for switch socket, reserved opening for junction box of wall skirting pipe, distribution box The hole is reserved, the water and electricity inlet wall pipe (11) is reserved, and the vertical electric pipe and water pipe (11) are pre-buried.

6. Wall (1) Concrete pouring. Horizontal movement and uniform material distribution can be realized by driving. The speed of manual feeding should be controlled evenly. The driving movement should be stable until the surface of the component is basically flat. Then start the vibrator attached to the mold table to vibrate, and fill the missing material until the surface is flooded and no longer until there are bubbles. the

7. Place the XPS insulation board (6) and the insulation connector (8).

①External wall XPS insulation board (6) must be connected into a body with adhesive tape in advance to prevent the bottom cement slurry from seeping through the upper surface. the

② Coat the XPS thermal insulation board (6) with a layer of tile bonding agent, paste the surface coated with the tile bonding agent on the concrete, and then install the thermal insulation connector (8) according to the layout requirements of the thermal insulation connector (8). Insert the XPS insulation sheet (6). the

③ Vibrate evenly with a flat vibrator to drive away the air under the insulation board, so that the concrete and tile adhesive can be completely combined. Simultaneously with the vibration, the connector (8) will also be inserted in place, so that the thermal insulation connector (8) is effectively connected with the concrete. the

④Apply a layer of tile bonding agent on the surface of the insulation board (6). After the concrete pouring of the protective layer is completed, do not open the vibrator attached to the mold table to avoid the extreme vibration that will cause the insulation board (6) to float and shift. the

⑤ The concrete of the protective layer is vibrated by a plate vibrator until the surface is flooded and no air bubbles are released.

8. Production of decorative panels (4):

①Colored concrete finish. Place steel mesh sheet (3) on insulation board (6), pour 50-100mm thickness concrete, make concrete coarse aggregate with particle size 5-10mm colored stones. When the bleeding on the upper surface of the concrete is about to dry, it can be sprayed with water detergent. After the concrete is solidified, the concrete surface where the agent is sprayed is washed with water to expose the colored aggregate.

② Brick or stone veneer. Place the reinforced mesh (3) on the insulation board (6), and pour concrete with a thickness of 50-100mm. Before the concrete reaches the initial setting, the upper brick or stone can be pasted.

9. The wall panel is demoulded. Wall panels should be demoulded vertically. Before demoulding, remove the surrounding molds, straighten the steel bars (10) protruding from the wall and pass through the side molds (9), and then use tools to slowly demould them horizontally. Pay attention to the protection of the walls. Corners and steel bars protruding from the wall (10). Immediately after demoulding, rinse the washing agent on the interface between the wall and the cast-in-place concrete to expose the rough surface of the concrete (5). After demoulding, place the finished wallboard on a temporary stacking rack for further maintenance.

Claims (8)

1. prefabricated sandwich thermal-insulating concrete side fascia, adopt from the inside to the outside the integrated compound wallboard of body of wall-insulation-architectural decoration, it is characterized in that body of wall (1) is the concrete structure layer of load-bearing, the centre is heat insulating board (2), outermost is architectural decoration cladding panel (4), is linked to be an integral body to three layers by thermal-insulation connecting piece (8).

2. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 1 is characterized in that described body of wall (1) thickness 150-200mm, embedded bar cage (14) in the body of wall.

3. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 1, it is characterized in that described warming plate (2) material should adopt the efficient and light weight heat insulating materials such as extruded polystyrene plate (XPS), hard-foam polyurethane (PUR), warming plate thickness 30 ~ 50mm.

4. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 1 is characterized in that described cladding panel (4) thickness 50 ~ 100mm, can adopt ordinary concrete, pea gravel concreten or mortar, inner pre-buried steel silk netting (3).

5. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 1 is characterized in that thermal-insulation connecting piece (8) should adopt the nonmetal connector that hinders good in thermal property in the described sandwich side fascia.

6. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 1 is characterized in that described side fascia can pre-buried door and window (13), makes door and window and side fascia integration.

7. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 2, the interface that it is characterized in that described body of wall and cast-in-situ concrete are washing undisguised charge levels (5).

8. a kind of prefabricated sandwich thermal-insulating concrete side fascia according to claim 5 is characterized in that described architectural decoration cladding panel (4) surface can adopt coating ornamental surface, and the colour concrete facing also can adopt face brick or stone facing.

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