CN201190339Y - Insulation structure for outer wall of building - Google Patents

Abstract

A building exterior wall insulation structure, comprising an insulation layer arranged on the surface of the exterior wall, an anti-crack layer is provided on the surface of the insulation layer, and a mesh-shaped steel wire layer is also arranged between the insulation layer and the anti-crack layer, and the steel wire layer is expanded by The bolts are fixedly connected to the external wall. There is a steel wire layer in the structure of the utility model, which improves the bonding firmness between the anti-cracking layer and the thermal insulation layer, not only improves the crack resistance performance, but also the steel wire layer is fixedly connected with the outer wall, so that the overall strength and bearing capacity of the thermal insulation structure The ability is greatly improved, and it is completely feasible to install stone materials as the outermost decorative layer. Moreover, the addition of the steel wire layer makes the construction of the external wall thermal insulation structure quick and flexible. It can be cast-in-place for a large area at one time, and can also be installed in the form of prefabricated thermal insulation boards. The efficiency is high, the thermal insulation and energy-saving effect is reliable, and the cost of the project is reduced.

Description

Building exterior wall insulation structure

Technical field:

The utility model relates to a thermal insulation structure for the outer wall of a building.

Background technique:

Now in order to make buildings more energy-efficient, many buildings need to be provided with thermal insulation structures on the exterior walls to prevent heat transfer. The usual thermal insulation structure is to manually smear polymer particles on the outer wall of the building to form an insulation layer, and then apply an anti-crack layer on the surface of the insulation layer. However, the insulation layer formed by this multiple cast-in-place construction is uneven and prone to Cracks, unreliable thermal insulation effect, poor combination of anti-crack layer and thermal insulation layer, low construction efficiency of the overall thermal insulation structure, increased construction period, and high overall cost. Moreover, many buildings will add decorative layers such as stone materials on the surface of the anti-crack layer, but the overall strength and bearing capacity of the thermal insulation structure are very poor, and it is very easy to be damaged during the construction of the decorative layer, which will limit the choice of exterior wall decoration of the building. The promotion of building insulation structures has also been affected.

Invention content:

Aiming at the deficiencies of the prior art, the utility model provides a building exterior wall heat preservation structure with high overall strength and rapid construction.

The utility model comprises an insulation layer arranged on the surface of the outer wall, an anti-crack layer is arranged on the surface of the insulation layer, and a mesh-shaped steel wire layer is arranged between the insulation layer and the anti-crack layer, and the steel wire layer is fixedly connected to the outer wall by expansion bolts. superior.

There is a steel wire layer in the structure of the utility model, which improves the bonding firmness between the anti-cracking layer and the thermal insulation layer, not only improves the crack resistance performance, but also the steel wire layer is fixedly connected with the outer wall, so that the overall strength and load-bearing capacity of the thermal insulation structure can be improved. The ability is greatly improved, and it is completely feasible to install stone materials as the outermost decorative layer. Moreover, the addition of the steel wire layer makes the construction of the external wall thermal insulation structure quick and flexible. It can be cast-in-place for a large area at one time, and can also be installed in the form of prefabricated thermal insulation boards. It has high efficiency, reliable thermal insulation and energy-saving effects, and reduces the cost of the project.

Further illustrate the utility model below in conjunction with accompanying drawing and embodiment.

Description of drawings:

Fig. 1 is the main structure schematic diagram of embodiment 1;

Fig. 2 is the front elevation schematic diagram of steel wire layer;

Fig. 3 is the schematic diagram of expansion joint;

Fig. 4 is the main structure schematic diagram of embodiment 2;

Figure 5 is a schematic diagram of the main structure of the prefabricated insulation board;

Fig. 6 is the overlapping schematic diagram of the edge of the steel wire layer of the prefabricated insulation board;

Fig. 7 is a schematic cross-sectional view of the overlap of prefabricated insulation boards.

Embodiment 1: As shown in Figure 1 and Figure 2, the insulation layer 1 is arranged on the surface of the outer wall 4, and the surface of the insulation layer 1 is provided with an anti-crack layer 2, and a mesh is also arranged between the insulation layer 1 and the anti-crack layer 2. Shaped steel wire layer 3, and the steel wire layer 3 is fixedly connected to the outer wall 4 by expansion bolts 5. The insulation layer 1 is made of polymer particles, generally polystyrene particles mixed with glue slurry, and the thickness of about three centimeters can better insulate heat. The polystyrene insulation layer 1 of this embodiment is tested and found to have a thermal conductivity of 0.054w/m.k, which is less than the national standard value of 0.06w/m.k, and has better thermal insulation performance. The steel wire layer 3 generally can use the steel wire mesh of about 0.5 millimeter, and the anti-crack layer 2 can generally use glass fiber or cloth fiber cement mortar, smear about 3 millimeters and get final product. Anti-cracking layer 2 is a high-strength structural layer, the general material ratio is glass fiber or cloth fiber: cement: sand: = 1:100:160, and the water-cement ratio is 0.35, compressive strength ≥ 40MPa, tensile strength ≥ 3.5 MPa.

This embodiment adopts on-site production during construction. First, the steel wire layer 3 with a sufficient area is fixedly connected to the outer wall 4 through spacers and expansion bolts 5 in parallel. The space distance is about three centimeters. Then the mixed poly The benzene particle slurry is poured into the space between the steel wire layer 3 and the outer wall 4 by pressure spraying or manual smearing, and is filled and solidified to form the insulation layer 1 . Then apply glass fiber or cloth fiber cement mortar on the steel wire layer 3 and the surface of the insulation layer 1 to form an anti-crack layer 2, and then the construction of the insulation structure of the building exterior wall 4 can be completed. According to needs, the general exterior wall decoration layer 7 is located on the surface of the anti-crack layer 2, and stone materials, paints, etc. can be used.

Since the thermal insulation layer 1 will expand with heat and contract with cold, generally the thermal insulation structure composed of the thermal insulation layer 1, the steel wire layer 3 and the anti-crack layer 2 is an independent unit with a length and a width of no more than 20 meters, as shown in Figure 3. Expansion joints 6 are arranged between them, and elastic fillers are filled in the expansion joints 6, and the elastic fillers generally use polyurethane materials, which can elastically expand and contract, and are waterproof and sealed.

Embodiment 2: As shown in FIG. 4 and FIG. 5 , the thermal insulation layer 1 and the steel wire layer 3 form a prefabricated thermal insulation board, and an adhesive layer 8 is also provided between the thermal insulation layer 1 and the outer wall 4 . Due to the use of prefabricated panels, the uniformity and quality of the insulation layer 1 are relatively reliable. During construction, the prefabricated insulation board can be connected to the surface of the outer wall 4 through the adhesive layer 8, and then fixed with the expansion bolt 5, and the installation speed is fast.

The area of each prefabricated insulation board is not large, as shown in Figure 6 and Figure 7, generally the edges of the steel wire layer 3 on the surface of each prefabricated insulation board are overlapped by a steel wire mesh 9, and glue liquid mud is filled between the edges of the insulation layer 1. Moreover, the length and width of the independent units formed by the overlap of prefabricated insulation boards are not more than 20 meters, which can form a larger area and ensure the overall strength. Expansion joints 6 are also required between independent units formed by lapping of multiple prefabricated insulation boards, and the treatment is the same as in Embodiment 1. Similarly, after the anti-crack layer 2 is formed, the decorative layer 7 can also be constructed and provided as required.

Claims (4)

1. A building exterior wall insulation structure, comprising an insulation layer arranged on the surface of the exterior wall, the surface of the insulation layer is provided with an anti-crack layer, characterized in that: an anti-crack layer is also arranged between the insulation layer (1) and the anti-crack layer (2). There is a netted steel wire layer (3), and the steel wire layer (3) is fixedly connected to the outer wall (4) through expansion bolts (5). 2. The building exterior wall thermal insulation structure according to claim 1, characterized in that: the thermal insulation structure composed of thermal insulation layer (1), steel wire layer (3) and anti-crack layer (2) has a length and width of no more than 20 meters. It is an independent unit, and expansion joints (6) are arranged between each independent unit, and elastic fillers are filled in the expansion joints (6). 3. The building exterior wall insulation structure according to claim 1 or 2, characterized in that: the insulation layer (1) and the steel wire layer (3) form a prefabricated insulation board, and the insulation layer (1) and the exterior wall (4) ) is also provided with a bonding layer (8). 4. The building exterior wall insulation structure according to claim 3, characterized in that: the edges of the steel wire layers (3) on the surface of each prefabricated insulation board are overlapped by steel wire mesh (9), and the edges of the insulation layers (1) are Glue cement slurry is filled, and the length and width of the independent units formed by the overlapping of prefabricated insulation boards are not more than 20 meters.

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