CN101806106B - Fire-proof thermal insulation wall body poured with thermal insulation layer - Google Patents

Abstract

The invention relates to a fire-proof and heat-preservation wall with perfusion heat-insulation layer, which effectively solves the problems of poor heat-preservation performance, complicated construction, difficult control of quality, safety and stability, and easy cracking of the surface layer. The brick body of the cavity is built into a single layer or double layer, and the insulation layer is poured, and the outer wall is vertically aligned. There is no gap in the mortar between the brick bodies to prevent the insulation material from flowing out when the insulation layer is poured. Build a height of 0.6m to 3.0m, pour the insulation layer, and pour the insulation material into the cavity. The insulation layer should be filled without gaps. After the strength of the leveling layer reaches 0.4MPa, paint the finish layer and it is ready; the invention not only overcomes the problems of poor bonding, anti-aging, poor wind pressure resistance, and easy cracking of the external thermal insulation wall, but also reduces the construction process The cost is reduced, and it also has the advantages of good fireproof and waterproof performance, and can be enclosed and loaded.

Description

Infusion insulation layer fire insulation wall

1. Technical field

The invention relates to the field of construction, in particular to a fire-proof and heat-retaining wall with a perfusion heat-insulation layer.

2. Background technology

With the continuous development of economy and technology, it has become the consensus of people to achieve sustainable and coordinated development. Building energy saving has been paid attention to by many countries because it can greatly reduce energy consumption, reduce environmental pollution and greenhouse effect. The external wall insulation technology is popular because of its advantages of not occupying indoor space. The existing external insulation walls mainly include polystyrene particle slurry, pasted polystyrene board, cast-in-place polystyrene board, rock wool board, foam Glass, poured polyurethane rigid foam and other walls. These walls have different thermal insulation performance, constructability, safety and stability. Some thermal insulation walls use materials with high thermal conductivity, which are not suitable for thermal insulation and energy saving in severe cold areas. Some security and stability are difficult to control during construction, and some The complex construction quality control is difficult, and some surface layer crack resistance problems are difficult to solve. In addition, the insulation layer is placed outside the enclosure structure, which will inevitably suffer from rain, snow, strong wind, freezing, thawing, dryness, humidity, harmful gases and Destruction by ultraviolet rays, etc., has recently seen problems such as debonding hollowing of the outer insulation layer and cracking of the surface layer. At present, the external thermal insulation wall made of rigid polyurethane foam is widely used in the field of building thermal insulation because of its functions of thermal insulation, waterproof, sound insulation, and vibration absorption. The vertical wall with external thermal insulation has major problems such as difficulty in controlling the surface flatness, poor adhesion between the facing layer and rigid polyurethane foam, and easy cracking of the outer facing. With the advancement of the times and the development of technology, higher requirements are put forward for the enclosure structure, and the requirements for fire insulation, easy construction and low cost are put forward for external wall insulation, so as to find a full-featured enclosure structure to meet the needs of society. development needs.

3. Contents of the invention

In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a fire-proof and heat-insulating wall with perfusion insulation layer, which can effectively solve the problems of poor heat preservation performance, complicated construction, difficult control of quality, safety and stability, and easy cracking of the surface layer. , the technical solution is that the fire-proof and thermal-insulation wall is formed by masonry of single-layer or double-layer bricks with cavities (also known as blocks, the same below), and pouring the thermal insulation layer. The masonry method is as follows: The outer wall is vertically aligned, and there is no gap in the mortar between the bricks to prevent the insulation material from flowing out when the insulation layer is poured. There must be no mortar in the cavity. If the mortar falls accidentally, it should be removed from the cavity as soon as possible; masonry 0.6 From a height of 3.0 meters to 3.0 meters, the insulation layer is poured, and the insulation material is poured into the cavity. Set a leveling layer on the surface, and after the strength of the leveling layer reaches 0.4mpa, paint the finish layer to form a fireproof and thermal insulation wall with a perfusion insulation layer; the brick body with a cavity has 1 or 2 cavities, The cavity is placed on the left end of the brick body, or the right end, or the front, or the rear, or the left and right ends, or the front and rear (as shown in Figure 1-Figure 6), the cavity is connected up and down, and the width The distance between the three sides of the cavity and the side wall of the block is 0.5mm-25mm, that is, the wall thickness of the cavity is 0.5mm-25mm; the brick body is sintered with or without holes Clay blocks, or fly ash blocks, or concrete blocks, etc.; the thermal insulation material is one of polyurethane, vitrified beads, polystyrene particles, perlite and other thermal insulation materials; the leveling The layer is painted ordinary mortar (that is, mortar, which is made of inorganic cementitious material mixed with fine aggregate and water, which is a conventional general technology), or anti-seepage and anti-crack mortar, or in areas with large temperature differences, anti-seepage and anti-crack The cracking mortar is added with mesh cloth for tensile strength or alkali-resistant mesh cloth; the said finishing layer is a kind of latex paint coating, imitation porcelain coating or facing brick; the said anti-seepage and anti-cracking mortar is Commercially available products produced by Suzhou Changshu City Hecheng Energy-saving Thermal Insulation Material Co., Ltd., Fujian Shaxian Huahong Chemical Co., Ltd., and Chengdu Qineng Thermal Insulation Material Engineering Co., Ltd. The invention not only overcomes the problems of poor bonding, anti-aging, poor wind pressure resistance, and easy cracking of the external thermal insulation wall, but also reduces the construction process and reduces the cost. The invention also has good fireproof and waterproof performance and can be enclosed and loaded The advantages.

4. Description of drawings

Fig. 1 is a structural perspective view of a perforated block with a cavity of the present invention.

Fig. 2 is a perspective view of the structure of the perforated block with two cavities of the present invention.

Fig. 3 is a structural perspective view of another embodiment of a block with holes in the present invention.

Fig. 4 is a structural perspective view of a non-porous block with a cavity of the present invention.

Fig. 5 is a structural perspective view of the non-porous block with two cavities of the present invention.

Fig. 6 is a structural perspective view of another embodiment of the non-porous block of the present invention.

Fig. 7 is a perspective view of the structure of a single-layer poured thermal insulation layer fireproof and thermal insulation wall of the present invention.

Fig. 8 is a perspective view of the structure of a fire-proof and heat-insulating wall with a double-layer perfusion heat-insulation layer of the present invention.

Fig. 9 is a perspective view of the structure of a fire-proof and heat-insulating wall with a single-layer perfusion heat-insulation layer according to another embodiment of the present invention.

5. Specific implementation

The specific implementation manners of the present invention will be described in detail below in combination with actual conditions.

Example 1:

The fireproof and thermal insulation wall is made of bricks with a cavity 1 built into a single layer, and the thermal insulation layer is poured. The cavity is placed on the front of the brick (as shown in Figure 7), and the width is 40mm. The thickness 2 is 10mm, and the brick body is a sintered clay block with holes. The masonry method is that the outer wall surface is aligned vertically, and there is no gap in the mortar between the 3 brick bodies, so as to prevent the insulation material from flowing out when the insulation layer is poured. There should be no mortar in the cavity. If the mortar falls accidentally, it should be removed from the cavity as soon as possible; the height of the masonry is 0.6 meters, and the insulation layer 4 is poured, and the vitrified microbead insulation material is poured into the cavity. Full and free of gaps, it will form an external thermal insulation wall poured with vitrified microbeads; after the entire wall is built, the anti-seepage and anti-crack mortar is painted on the inside and outside of the external wall to form a leveling layer, and the anti-seepage and anti-crack mortar After the strength of the leveling layer reaches 0.4mpa, paint with latex paint to form a finishing layer, which is a fireproof and thermal insulation wall with a poured thermal insulation layer.

Example 2:

The fireproof and thermal insulation wall is made of bricks with two cavities 1 to form a single layer, and the insulation layer is poured. The cavity is placed on the front and back of the brick body (as shown in Figure 9), and the width is 25mm. The thickness 2 is 5mm, and the brick body is sintered fly ash block with holes. The masonry method is that the outer wall surface is vertically aligned, and there is no gap in the mortar between the brick body 3, so as to prevent the insulation material from flowing out when the insulation layer is poured. There should be no mortar in the cavity. If the mortar falls accidentally, it should be removed from the cavity as soon as possible; the height of the masonry is 1.5 meters, and the insulation layer 4 is poured, and the polyurethane insulation material is poured into the cavity, and the polyether polyol (Material B) and isocyanate (Material A) are mixed evenly at a ratio of 1:1, and poured in the cavity. The insulation layer must be filled without gaps. After the polyurethane insulation material is condensed, the polyurethane composite insulation exterior wall will be formed. ; After the entire wall is built, paint anti-seepage and anti-crack mortar on the inside and outside of the outer wall, and lay alkali-resistant mesh cloth in the anti-seepage and anti-crack mortar to form a leveling layer to enhance crack resistance and anti-cracking. After the strength of the leveling layer formed by anti-seepage and anti-cracking mortar and alkali-resistant mesh cloth reaches 0.4mpa, the facing brick is pasted to form a facing layer, and the fire-proof and heat-insulating wall of the perfusion insulation layer is formed.

Example 3:

The fireproof and heat-preserving wall is made of bricks with a cavity 1 to form a double-layer, poured with a heat-insulating layer, and the cavity is placed on the front or right end of the brick body (as shown in Figure 8), with a width of 55mm, wall thickness 2 is 20mm, the brick body is a sintered concrete block with holes, the masonry method is that the outer wall surface is vertically aligned, and there is no gap in the mortar between the brick body 3 to prevent the insulation material from flowing out when the insulation layer is poured , there should be no mortar in the cavity. If the mortar falls accidentally, it should be removed from the cavity as soon as possible; the height of the masonry is 2 meters, and the insulation layer 4 is poured into the cavity. The benzene particle insulation material is poured in the cavity, and the insulation layer should be filled without gaps, that is, the polystyrene particle insulation outer wall is formed; after the whole wall is built, the inner and outer surfaces of the outer wall are painted with ordinary mortar to form a leveling layer After the leveling layer strength formed by ordinary mortar reaches 0.4mpa, paint imitation porcelain paint to form a finishing layer, which is a fireproof and thermal insulation wall with perfusion insulation layer.

The present invention has the following characteristics:

(1) The insulation wall reduces the impact of harsh conditions on the construction and use of the external insulation layer, and prevents problems such as weak bonding, easy hollowing and cracking;

(2) Since the thermal insulation wall is directly filled with the thermal insulation layer in the cavity formed during the masonry, it can be constructed simultaneously with the masonry, reducing the need to wait until the end of the construction and then specially making the thermal insulation layer process, reducing the cost, The insulation layer forms a whole in the cavity, which reduces the occurrence of thermal bridges and improves the insulation effect of the entire wall;

(3) Except for the large cavity, the blocks in the on-site pouring insulation layer are the same size as ordinary blocks, so they can be used for both filling structures and load-bearing structures.

According to the experiment, the water absorption is 0.5-0.8kg/m2, which is less than 1.0kg/m2 of the thermal insulation regulations. The brick body material meets the requirements of Class A, and the polyurethane and other thermal insulation materials meet the requirements of Class B1. According to the Technical Regulations for Thermal Insulation Engineering, after 30 freeze-thaw cycles, the wall will have no hollowing and no water seepage cracks. The tensile bond strength of the fireproof and thermal insulation wall of the present invention is 0.1-0.3Mpa, and the damaged part is located in the thermal insulation layer. The thermal insulation material The thermal conductivity is between 0.024-0.060, the artificial aging performance has been tested for 2000 times, and the wall has no cracks. And after 80 high temperature (70°C)-rainfall (15°C) cycles and 20 times of heating (50°C)-freezing (-20°C) cycles in the weather resistance test, no hollowing, shedding and cracking occurred.

To sum up, compared with the external heat preservation of the existing wall, the fire-proof and heat-preservation wall of the perfusion insulation layer of the present invention not only solves the problems of easy debonding, hollowing and easy cracking of the surface layer, but also makes it waterproof, fire-proof, impact-resistant, and resistant. Aging and other properties have been significantly improved; it also reduces the construction steps of external insulation, shortens the construction period, and reduces the cost of the project. This wall is a major reform of the masonry structure and is an incomparable new structure for other walls.

Claims (1)

1. A fire-proof and heat-insulating wall with perfusion insulation layer, characterized in that the fire-proof and heat-preservation wall is made of single-layer or double-layer bricks with cavities, and the perfusion insulation layer is formed, and the outer wall is vertically aligned, and the bricks There is no gap in the mortar between the bodies to prevent the insulation material from flowing out when the insulation layer is poured. There should be no mortar in the cavity. The height of the masonry is 0.6 meters to 3.0 meters, and the insulation layer is poured, and the insulation material is poured into the cavity. It must be full and free of gaps. After the entire wall is built, a leveling layer is set on the inner and outer surfaces of the outer wall. After the strength of the leveling layer reaches 0.4mpa, the finishing layer is painted to form a fireproof and thermal insulation wall with a perfusion insulation layer. ; said brick body with a cavity has 1 or 2 cavities, the cavity is connected up and down, with a width of 20mm-60mm and a wall thickness of 0.5mm-25mm; said brick body is sintered porous or non-porous clay blocks, or fly ash blocks, or concrete blocks; ; said leveling layer is painted ordinary mortar or anti-seepage and anti-cracking mortar; said finishing layer is a kind of latex paint coating, imitation porcelain coating or facing brick; when the fire insulation wall is made of a The brick body of the cavity (1) is built into a single layer, the cavity is placed on the front part of the brick body, the width is 40mm, the wall thickness (2) is 10mm, the brick body is a sintered clay block with holes, the outer The walls are vertically aligned, and there is no gap in the mortar between the bricks (3) to prevent the insulation material from flowing out when the insulation layer is poured. There should be no mortar in the cavity, and the height of the masonry is 0.6 meters. The vitrified microbead insulation material is poured into the cavity, and the insulation layer should be filled without gaps. After the entire wall is built, the anti-seepage and anti-crack mortar is painted on the inside and outside of the outer wall to form a leveling layer. After the anti-seepage and anti-crack After the strength of the leveling layer formed by the mortar reaches 0.4mpa, paint the latex paint to form the finishing layer; when the fireproof and thermal insulation wall is made of bricks with 2 cavities (1) to form a single layer, the cavities are placed On the front and back of the brick body, the width is 25mm, and the wall thickness (2) is 5mm. The brick body is a sintered fly ash block with holes, and the outer wall is vertically aligned. There is no Gaps to prevent the insulation material from flowing out when the insulation layer is poured. There should be no mortar in the cavity. The height of the masonry is 1.5 meters. The insulation layer (4) is poured, and the polyurethane insulation material is poured into the cavity. Polyether polyol and isocyanic acid After the grease is mixed evenly at a ratio of 1:1, it is poured into the cavity, and the insulation layer must be filled without gaps. After the polyurethane insulation material is solidified, the whole wall is built, and the inside and outside of the outer wall are painted with anti-seepage and anti-crack mortar , and lay alkali-resistant mesh cloth in the anti-seepage and anti-crack mortar to form a leveling layer to enhance crack resistance and impact resistance. The strength of the leveling layer formed by anti-seepage and anti-crack mortar and alkali-resistant mesh cloth After reaching 0.4mpa, paste the facing bricks to form a facing layer; when the fireproof and thermal insulation wall is double-layered by bricks with a cavity (1), the cavity is placed on the front of the brick or On the right end, the width is 55mm, the wall thickness (2) is 20mm, the brick body is a sintered concrete block with holes, and the outer The walls are vertically aligned, and there is no gap in the mortar between the bricks (3) to prevent the insulation material from flowing out when the insulation layer is poured. There should be no mortar in the cavity, and the height of the masonry is 2 meters. The polystyrene particle insulation material is poured into the cavity, and the polystyrene particle insulation material is poured into the cavity. The insulation layer must be filled without gaps. After the entire wall is built, the interior and exterior of the external wall are painted with ordinary mortar to form a leveling Layer, after the strength of the leveling layer formed by ordinary mortar reaches 0.4mpa, paint imitation porcelain paint to form a finishing layer.

Images