CN215551437U

CN215551437U - Building precast concrete with filling heat preservation wallboard

Info

Publication number: CN215551437U
Application number: CN202121521547.8U
Authority: CN
Inventors: 王威
Original assignee: Pizhou Nanfang Building Materials Co Ltd
Current assignee: Pizhou Nanfang Building Materials Co Ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-01-18
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a building precast concrete sandwich heat-insulation wallboard, and relates to the technical field of building precast wallboards. The steel wire mesh concrete composite board comprises a base plate, a hard foam polyurethane insulation board, a steel wire mesh concrete foam board, a phenolic resin board, a foamed cement layer, a first concrete layer, a second concrete layer and longitudinal steel bars. Aiming at the problems of poor heat insulation effect, insufficient wall hardness and easy deformation of the existing prefabricated heat insulation wallboard for the building, the middle of the wallboard is provided with a base formed by pouring reinforcing steel bars and concrete, the outermost layers of two sides are provided with a first concrete layer and a second concrete layer, the layers are sequentially connected from left to right by using longitudinal reinforcing steel bars, and a strong heat insulation protective net is formed by reasonably matching and assembling various heat insulation materials, so that the heat insulation effect of the prefabricated wallboard for the building is improved.

Description

Building precast concrete with filling heat preservation wallboard

Technical Field

The utility model belongs to the technical field of building prefabricated wallboards, and particularly relates to a building prefabricated concrete sandwich heat-insulation wallboard.

Background

Because the traditional construction method of the building wall body does not meet the standards of energy conservation, pollution reduction and the like required in modern buildings, the technical personnel in the field design the composite wall plate to replace the wall body, the wall plate is generally of a three-layer structure, the heat-insulating layer is clamped between two layers of concrete, and the three layers of plates are connected together by adopting metal connecting pieces. The wallboard is directly used for construction after being manufactured, thereby solving a plurality of defects existing in the traditional construction method. However, when the wall board is used, the wall is easy to crack, and the outer layer of the wall is separated by serious people. And only one heat-insulating layer is arranged between the two layers of concrete, so that the heat-insulating effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a building precast concrete sandwich heat-insulation wallboard, which solves the problems of poor heat-insulation effect, insufficient firmness and easy deformation of the existing building precast heat-insulation wallboard through arranging a base plate, a hard foam polyurethane heat-insulation board, a steel wire mesh cement foam board, a phenolic resin board, a foamed cement layer, a first concrete layer, a second concrete layer and longitudinal steel bars.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a building precast concrete sandwich heat-insulation wallboard, which comprises a base plate, wherein two opposite side surfaces of the base plate are uniformly provided with first bosses in a distributed manner; the hard foam polyurethane heat insulation board is fixedly arranged on two opposite side surfaces of the substrate; one side surface of the hard foam polyurethane insulation board is uniformly provided with first grooves; the first groove is matched with the first boss; the steel wire mesh is a cement foam board, and the steel wire mesh cement foam board is fixedly arranged on one hard foam polyurethane insulation board; the phenolic resin plate is fixedly arranged on the other hard foam polyurethane insulation board; the foamed cement layer is fixedly connected with the steel wire mesh mining cement foam board through an S-shaped cushion pad; the first concrete layer is fixedly arranged on the outer side surface of the foamed cement layer; the second concrete layer is fixedly arranged on the outer side surface of the phenolic resin plate; the first concrete layer, the foamed cement layer, the steel wire mesh cement foam board, the hard foam polyurethane insulation board, the base plate, the hard foam polyurethane insulation board, the phenolic resin board and the second concrete layer are sequentially connected through the longitudinal steel bar from left to right.

Further, the base plate is formed by pouring a steel reinforcement framework and concrete.

Further, the hard foam polyurethane insulation board is laid on the substrate through cement.

Further, the S-shaped buffer pad is specifically a glass wool roll felt.

Furthermore, the steel wire mesh is fixed on the hard foam polyurethane insulation board by adopting a gluing mode, and the cement foam board and the phenolic resin board are fixed on the hard foam polyurethane insulation board by adopting a gluing mode.

Further, the first concrete layer and the second concrete layer are both ceramsite concrete.

Further, the thickness ratio of the first concrete layer, the foamed cement layer, the steel wire mesh cement foam board, the hard foam polyurethane insulation board, the base board, the hard foam polyurethane insulation board, the phenolic resin board and the second concrete layer is 2: 1: 1: 1.5: 3: 1.5: 1: 2.

the hard foam polyurethane insulation board has low heat conductivity coefficient and good thermal performance. When the density of the hard polyurethane is 35-40 kg/m3, the thermal conductivity is only 0.018-0.024W/which is about half of EPS, and the thermal conductivity is the lowest among all heat-insulating materials.

The foamed cement board for steel wire net production is light foamed heat insulating material produced with Portland cement, flyash, foaming agent, additive, etc. as material and through compounding, stirring, foaming, cutting and other steps.

The phenolic resin board is made of phenolic foam, the main components of the phenolic foam are phenol and formaldehyde, the phenolic foam is a novel flame-retardant, fireproof and low-smoke heat-insulating material, and the phenolic foam is closed-cell rigid foam plastic prepared by adding a foaming agent, a curing agent and other auxiliary agents into phenolic resin.

And the foaming cement layer is formed by fully foaming a foaming agent in a mechanical mode through a foaming system of a foaming machine, uniformly mixing the foam and cement slurry, then carrying out cast-in-place construction or mould forming through a pumping system of the foaming machine, and carrying out natural maintenance to form the novel light heat-insulating material containing a large number of closed air holes.

The utility model has the following beneficial effects:

1. aiming at the problems of poor heat insulation effect, insufficient wall hardness and easy deformation of the existing prefabricated heat insulation wallboard for the building, the utility model is provided with the base plate, the hard foam polyurethane heat insulation board, the steel wire mesh cement foam board, the phenolic resin board, the foamed cement layer, the first concrete layer, the second concrete layer and the longitudinal steel bars, and a stronger heat insulation protective net is formed by reasonable matching and assembling of various heat insulation materials, so that the heat insulation effect of the prefabricated wallboard for the building is improved.

2. Aiming at the problems that the existing building prefabricated wall board is not firm enough and easy to deform, the middle of the wall board is provided with a base formed by pouring reinforcing steel bars and concrete, the outermost layers of two sides are provided with a first concrete layer and a second concrete layer, and the first concrete layer, a foamed cement layer, a steel wire mesh cement foam board, a hard foam polyurethane insulation board, a base plate, a hard foam polyurethane insulation board, a phenolic resin board and the second concrete layer are sequentially connected from left to right by using longitudinal reinforcing steel bars, so that the firmness and the stability of the prefabricated wall board are improved.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a building precast concrete sandwich thermal insulation wallboard of the utility model.

In the drawings, the components represented by the respective reference numerals are listed below:

the concrete comprises, by weight, 1-a base plate, 2-a hard foam polyurethane insulation board, 3-a steel wire mesh cement foam board, 4-a foamed cement layer, 5-a phenolic resin board, 6-a first concrete layer, 7-a second concrete layer, 8-an S-shaped cushion pad, 9-a longitudinal steel bar and 10-a first boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "side," "top," "intermediate," "outer surface," and the like are used for indicating an orientation or positional relationship for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

Referring to fig. 1, the utility model is a building precast concrete sandwich thermal insulation wallboard, which comprises a substrate 1, wherein two opposite side surfaces of the substrate 1 are uniformly distributed with first bosses 10; the base plate 1 is formed by pouring a steel bar framework and concrete; the hard foam polyurethane heat-insulation board 2 is fixedly arranged on two opposite side surfaces of the substrate 1; one side surface of the hard foam polyurethane insulation board 2 is uniformly provided with first grooves; the first groove is matched with the first boss 10; the hard foam polyurethane insulation board 2 is laid on the substrate 1 through cement; the steel wire mesh is used for mining the cement foam board 3, and the steel wire mesh is used for mining the cement foam board 3 and is fixedly arranged on the hard foam polyurethane insulation board 2; the phenolic resin plate 5 is fixedly arranged on the other hard foam polyurethane insulation board 2; the foamed cement layer 4, the foamed cement layer 4 and the steel wire mesh mining cement foam board 3 are fixedly connected through an S-shaped cushion pad 8; the S-shaped buffer cushion 8 is specifically a glass wool roll felt; the first concrete layer 6 is fixedly arranged on the outer side surface of the foamed cement layer 4; the second concrete layer 7 is fixedly arranged on the outer side surface of the phenolic resin plate 5; the first concrete layer 6, the foamed cement layer 4, the steel wire mesh cement foam board 3, the hard foam polyurethane insulation board 2, the base board 1, the hard foam polyurethane insulation board 2, the phenolic resin board 5 and the second concrete layer 7 are sequentially connected by the longitudinal steel bar 9 from left to right by the longitudinal steel bar 9; the steel wire mesh mining cement foam board 3 and the phenolic resin board 5 are fixed on the hard foam polyurethane insulation board 2 in an adhesive manner; the first concrete layer 6 and the second concrete layer 7 are both ceramsite concrete; the thickness ratio of first concrete layer 6, foaming cement layer 4, wire net adoption cement foam board 3, hard bubble polyurethane heated board 2, base plate 1, hard bubble polyurethane heated board 2, phenolic resin board 5 and second concrete layer 7 is 2: 1: 1: 1.5: 3: 1.5: 1: 2.

one specific application of this embodiment is:

placing a base plate 1 formed by pouring a steel bar framework and concrete at the middle position, and respectively building 2 hard foam polyurethane insulation boards 2 on two side surfaces of the base plate 1 through cement; the outer side surface of one of the rigid foam polyurethane insulation boards 2 is sequentially provided with a steel wire mesh cement foam board 3, a foamed cement layer 4 and a first concrete layer 6, and the foamed cement layer 4 and the steel wire mesh cement foam board 3 are fixedly connected through an S-shaped cushion pad 8; the outer side surface of the other hard foam polyurethane insulation board 2 is sequentially provided with a phenolic resin board 5 and a second concrete layer 7;

then sequentially connecting a first concrete layer 6, a foamed cement layer 4, a steel wire mesh mining cement foam board 3, a hard foam polyurethane insulation board 2, a base plate 1, a hard foam polyurethane insulation board 2, a phenolic resin board 5 and a second concrete layer 7 from left to right by using longitudinal steel bars 9; through the reasonable collocation equipment of multiple insulation material, form stronger heat preservation protection network, improved the heat preservation effect of building prefabricated wall panel.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a building precast concrete with filling heat preservation wallboard which characterized in that: comprises that

The structure comprises a substrate (1), wherein first bosses (10) are uniformly distributed on two opposite side surfaces of the substrate (1);

the rigid foam polyurethane heat-insulation board (2), the rigid foam polyurethane heat-insulation board (2) is fixedly arranged on two opposite side surfaces of the substrate (1); one side surface of the hard foam polyurethane insulation board (2) is uniformly provided with first grooves; the first groove is matched with the first boss (10);

the steel wire mesh mining cement foam board (3) is fixedly arranged on one hard foam polyurethane insulation board (2);

the phenolic resin plate (5), the phenolic resin plate (5) is fixedly arranged on the other hard foam polyurethane insulation board (2);

the foamed cement layer (4) is fixedly connected with the steel wire mesh mining cement foam board (3) through an S-shaped cushion pad (8);

the first concrete layer (6), the first concrete layer (6) is fixedly arranged on the outer side surface of the foamed cement layer (4);

the second concrete layer (7), the second concrete layer (7) is fixedly arranged on the outer side surface of the phenolic resin plate (5);

longitudinal reinforcement (9), longitudinal reinforcement (9) are from a left side to the right side and are connected first concrete layer (6), foaming cement layer (4), cement foam board (3), hard bubble polyurethane heated board (2), base plate (1), hard bubble polyurethane heated board (2), phenolic resin board (5) and second concrete layer (7) in proper order.

2. The building precast concrete sandwich thermal insulation wallboard according to claim 1, characterized in that the base plate (1) is formed by pouring a steel reinforcement framework and concrete.

3. The building precast concrete sandwich thermal insulation wall panel according to claim 1 or 2, wherein the hard foam polyurethane thermal insulation panel (2) is laid on the base plate (1) by cement.

4. A building precast concrete sandwich thermal insulation wall panel according to claim 3, characterized in that the S-shaped buffer pads (8) are in particular glass wool roll felt.

5. The building precast concrete sandwich thermal insulation wallboard according to claim 1, 2 or 4, characterized in that the steel wire mesh cement foam board (3) and the phenolic resin board (5) are fixed on the rigid foam polyurethane thermal insulation board (2) in an adhesive manner.

6. The building precast concrete sandwich thermal insulation wallboard according to claim 5, characterized in that the first concrete layer (6) and the second concrete layer (7) are both ceramsite concrete.

7. The building precast concrete sandwich thermal insulation wallboard according to claim 1, 2, 4 or 6, characterized in that the thickness ratio of the first concrete layer (6), the foamed cement layer (4), the steel wire mesh cement foam board (3), the hard foam polyurethane thermal insulation board (2), the base board (1), the hard foam polyurethane thermal insulation board (2), the phenolic resin board (5) and the second concrete layer (7) is 2: 1: 1: 1.5: 3: 1.5: 1: 2.