Sandwich heat preservation structure suitable for fair-faced concrete structure

Abstract

The utility model discloses a sandwich heat preservation structure suitable for a bare concrete structure, which comprises a bare concrete wall body, an autoclaved aerated concrete block wall is arranged on the indoor side of the bare concrete wall body, and a gap I is arranged between the autoclaved aerated concrete block wall and the bare concrete wall body. The gap I is filled with a thermal insulation material I; a second gap is formed between the fair-faced concrete wall and the outer surface of the building body structure and filled with a second heat preservation material, and the second heat preservation material is used as a fair-faced concrete wall pouring formwork. The inner wall body and the outer wall body are relatively independent, the inner wall body is not affected by the thermal expansion and cold contraction phenomenon of the outer wall body, the indoor wall is not prone to mildewing and the like, the heat preservation effect and stability of a building can be better guaranteed, heat preservation materials can be better protected from being affected by the environment, and therefore the service life of the heat preservation materials is prolonged; and secondary decoration does not damage the thermal insulation structure and does not cause any damage to the thermal insulation structure.

Description

Technical Field

[0001] The utility model relates to the technical field of fair-faced concrete thermal insulation structures, in particular to a sandwich thermal insulation structure suitable for fair-faced concrete structures. Background Art

[0002] At present, some cultural buildings with certain social significance, such as cultural centers, mostly use fair-faced concrete facades. In order to ensure the texture effect of the one-piece forming of the fair-faced concrete facade, an internal insulation structure is generally used. However, the internal insulation structure mainly has the following problems:

[0003] (1) It affects secondary decoration. Heavy objects such as decorative paintings cannot be hung on the indoor walls, and objects hung and fixed on the indoor walls can easily damage the internal insulation structure;

[0004] (2) Indoor walls are prone to mold and mildew;

[0005] (3) The internal insulation structure will cause two temperature fields to appear on the inner and outer walls, forming a temperature difference. The thermal expansion and contraction of the outer wall is greater than that of the inner wall, which leads to instability in the building structure and cracks in the insulation layer. Utility Model Content

[0006] In order to solve the problems existing in the existing thermal insulation structure in the plain concrete structure, the utility model provides a sandwich thermal insulation structure suitable for the plain concrete structure.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A sandwich insulation structure suitable for a plain concrete structure, comprising a plain concrete wall, an autoclaved aerated concrete block wall is arranged on the indoor side of the plain concrete wall, a gap is provided between the autoclaved aerated concrete block wall and the plain concrete wall, and a thermal insulation material is filled in the gap;

[0009] A second gap is provided between the plain concrete wall and the outer surface of the main building structure, and a second thermal insulation material is filled in the second gap. The second thermal insulation material is used as a casting template for the plain concrete wall.

[0010] As a preferred embodiment of the present invention, the thickness of the thermal insulation material one is greater than the thickness of the thermal insulation material two.

[0011] Furthermore, the thermal insulation material 1 and the thermal insulation material 2 are both extruded polystyrene boards.

[0012] As a preferred embodiment of the present invention, a transparent protective agent layer is provided on the outdoor side surface of the fair-faced concrete wall.

[0013] As a preferred embodiment of the present invention, an interior decoration surface layer is provided on the indoor inner surface of the autoclaved aerated concrete block wall.

[0014] The utility model is beneficial in that:

[0015] (1) Since the insulation material is set inside the wall, and the inner wall and the outer wall are relatively independent, the inner wall will not be affected by the thermal expansion and contraction of the outer wall, and the indoor wall is not prone to mold and other phenomena, which can better ensure the insulation effect and stability of the building, and better protect the insulation material from environmental influences, thereby extending the service life of the insulation material;

[0016] (2) The fire resistance performance can also meet the requirements of Class A materials, which means that even in a high temperature environment, the insulation structure of this technical solution can remain stable, thus providing reliable protection for the safety of the building;

[0017] (3) Secondary renovation will not damage the insulation structure, which means that during the service life of the building, operations such as hanging and fixing objects on the inner walls can be carried out as needed without causing any damage to the insulation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the plan section structure of the main structure (column) of the utility model building;

[0019] Figure 2 It is a schematic diagram of the elevation section structure of the main structure (beam and slab) of the utility model building;

[0020] Figure 3 It is a schematic diagram of the plane section structure of the window of the utility model;

[0021] Figure 4 It is a schematic diagram of the vertical cross-sectional structure of the window of the utility model;

[0022] Meaning of the reference numerals in the figures:

[0023] 1- bare concrete wall, 2- autoclaved aerated concrete block wall, 3- main building structure;

[0024] 4-transparent protective agent layer, 5-interior surface layer, 11-thermal insulation material 1, 12-thermal insulation material 2. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-4As shown, this embodiment is a sandwich insulation structure suitable for a plain concrete structure, comprising a plain concrete wall 1, an autoclaved aerated concrete block wall 2 is arranged on the indoor side of the plain concrete wall 1, a gap 1 is provided between the autoclaved aerated concrete block wall 2 and the plain concrete wall 1, and an insulation material 11 is filled in the gap 1;

[0027] There is a gap 2 between the plain concrete wall 1 and the outer surface of the main building structure 3. The gap 2 is filled with a thermal insulation material 12, which is used as a casting template for the plain concrete wall 1. After the plain concrete wall 1 is cast, the thermal insulation material 12 does not need to be removed.

[0028] In this embodiment, the thickness of the insulation material 11 is greater than the thickness of the insulation material 2 12; the insulation material 11 and the insulation material 2 12 are both extruded polystyrene boards; specifically, B1 grade extruded polystyrene boards with good hardness and thermal insulation performance are used.

[0029] In this embodiment, a transparent protective agent layer 4 is provided on the outdoor surface of the plain concrete wall 1 ; and an interior decoration layer 5 is provided on the indoor surface of the autoclaved aerated concrete block wall 2 .

[0030] This embodiment adopts a sandwich insulation structure, and its main structure from inside to outside is: autoclaved aerated concrete block wall 2 + insulation material layer + plain concrete wall 1. The plain concrete wall 1 is cast in one time, and the insulation material layer adopts B1 grade extruded polystyrene board with good hardness and insulation performance. The autoclaved aerated concrete block wall 2 is built on the indoor side to form a sandwich insulation structure with insulation materials wrapped inside and outside, which also meets the fire protection requirement that the protective layer on both sides of the B1 grade insulation material is greater than 50mm thick.

[0031] For projects using plain concrete facades, on the one hand, it is necessary to ensure the uniform effect of the plain concrete finish, and on the other hand, it is necessary to minimize the damage to the insulation material during the pouring of the plain concrete, and reduce the impact of the wall cold bridge on the thermal performance of the wall; in view of the above difficulties, this embodiment needs to be implemented in combination with the corresponding construction organization, and the construction sequence is: pouring of the main building structure 3 (beams, slabs and columns) → installing and fixing the insulation material 12 at the cold bridge of the main building structure 3 (beams, slabs and columns) (also serving as the casting template for the plain concrete wall 1) → pouring of the plain concrete wall 1 → removal of the template and support system → installing and fixing the insulation material 11 on the indoor side of the plain concrete wall 1 → laying the autoclaved aerated concrete block wall 2 → painting the interior surface layer 5 on the indoor side surface of the autoclaved aerated concrete block wall 2 → painting the transparent protective agent layer 4 on the outdoor side surface of the plain concrete wall 1.

[0032] This embodiment has the following advantages:

[0033] (1) Since the insulation material is set inside the wall, and the inner wall and the outer wall are relatively independent, the inner wall will not be affected by the thermal expansion and contraction of the outer wall, and the indoor wall is not prone to mold and other phenomena, which can better ensure the insulation effect and stability of the building, and better protect the insulation material from environmental influences, thereby extending the service life of the insulation material;

[0034] (2) The fire resistance performance can also meet the requirements of Class A materials, which means that even in a high temperature environment, the insulation structure of this technical solution can remain stable, thus providing reliable protection for the safety of the building;

[0035] (3) Secondary renovation will not damage the insulation structure, which means that during the service life of the building, operations such as hanging and fixing objects on the inner walls can be carried out as needed without causing any damage to the insulation structure.

[0036] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "one" and "two" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present utility model, it should be noted that: unless otherwise clearly stipulated and limited, the terms "installation", "connection", "setting" and "formation" should be understood in a broad sense; for example: it can be a fixed connection, setting, or a detachable connection, setting, or an integrated structure; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements; for those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A sandwich insulation structure suitable for a plain concrete structure, characterized by: It comprises a plain concrete wall, an autoclaved aerated concrete block wall is arranged on the indoor side of the plain concrete wall, a gap one is provided between the autoclaved aerated concrete block wall and the plain concrete wall, and a thermal insulation material one is filled in the gap one; A second gap is provided between the plain concrete wall and the outer surface of the main building structure, and a second thermal insulation material is filled in the second gap. The second thermal insulation material is used as a casting template for the plain concrete wall.

2. A sandwich insulation structure suitable for a plain concrete structure according to claim 1, characterized in that: The thickness of the first thermal insulation material is greater than the thickness of the second thermal insulation material.

3. A sandwich insulation structure suitable for a plain concrete structure according to claim 1 or 2, characterized in that: The first thermal insulation material and the second thermal insulation material are both extruded polystyrene boards.

4. The sandwich insulation structure suitable for a plain concrete structure according to claim 1, characterized in that: A transparent protective agent layer is arranged on the outdoor side surface of the fair-faced concrete wall.

5. The sandwich insulation structure suitable for a plain concrete structure according to claim 1, characterized in that: The indoor side surface of the autoclaved aerated concrete block wall is provided with an interior decoration surface layer.

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