CN111749414A - A kind of lightweight cement-based composite strip and its making method - Google Patents

Abstract

The invention provides a lightweight cement-based composite strip and a manufacturing method thereof. The strip is used as a decorative wall panel for a structural wall, and includes a decorative surface layer, a concrete layer and a thermal insulation layer sequentially arranged from the outside to the inside. The decorative surface The layer and the thermal insulation layer are consolidated into one body by a concrete layer, grid-shaped steel members are pre-buried in the concrete layer, and a plurality of through holes are arranged on the grid-shaped steel members as installation holes. By pre-embedding the grid-shaped steel members in the concrete layer and setting a plurality of installation holes on the grid-shaped steel members, the present invention saves the process of additionally making a hanging board keel on the outer wall of the building during installation, reduces the field welding work, saves It can save labor and materials, and at the same time ensure the strength of the strip, or avoid damaging the decorative surface layer and avoid causing a hot and cold bridge.

Description

A kind of lightweight cement-based composite strip and its making method

technical field

The invention belongs to the technical field of thermal insulation and decoration of building exterior walls, and in particular relates to a lightweight cement-based composite strip and a manufacturing method thereof.

Background technique

In recent years, prefabricated buildings have been vigorously developed in my country, and the lightweight cement-based composite slats used for the exterior walls of buildings have also emerged in an endless stream. The lightweight cement-based composite slats are widely used as thermal insulation decorative wall panels for structural walls. There are two main categories of lightweight cement-based composite slat structures:

1) Inorganic layer + thermal insulation layer, the inorganic layer includes cement base material, gypsum, etc. However, if this type of inorganic layer is thick, the composite strip cannot bear its own weight only through the bonding between its thermal insulation layer and the structural wall. Directly nailing nails or fixing through the decorative layer and thermal insulation layer through clips will damage the exterior decoration. surface and create a thermal bridge. If the inorganic layer is thin, the self-protection ability will also be reduced under the condition of reducing the self-weight, and it is not suitable for multi-layer, high-rise buildings that will encounter strong wind loads.

2) Inorganic layer + thermal insulation layer + inorganic layer, two inorganic layers can protect the thermal insulation layer, but the two inorganic layers need to pass through the steel components, plastic components, carbon fiber components or cement layers that penetrate the thermal insulation layer and the thermal insulation layer. It is firmly bonded, and at the same time, it forms a hot and cold bridge that penetrates the insulation layer. The existence of the hot and cold bridge increases the energy consumption of thermal insulation of the building, and at the same time makes the thermal conductivity of the wall thermal insulation layer uneven, resulting in condensation, mildew and even dripping on the inner wall of the house.

SUMMARY OF THE INVENTION

In view of the above deficiencies, the purpose of the present invention is to provide a lightweight cement-based composite strip.

The technical scheme adopted in the present invention is:

A lightweight cement-based composite strip used as a decorative wall panel for a structural wall body, comprising a decorative surface layer (1) and a thermal insulation layer (3), and is arranged between the decorative surface layer (1) and the thermal insulation layer (3) The concrete layer (2), the decorative surface layer (1) and the thermal insulation layer (3) are consolidated into one body by the concrete layer (2), and the grid-like steel members (22) are pre-embedded in the concrete layer (2). The lattice-shaped steel member (22) is provided with a plurality of through holes as mounting holes (4).

In the above-mentioned lightweight cement-based composite strip, the grid-shaped steel member (22) includes steel bars (221) forming a grid structure and steel plates (222) fixed at four corners of the grid. The intersection and the connection part of the steel bar (221) and the steel plate (222) are fixed, and the mounting hole (4) is arranged on the steel plate (222); preferably, the steel plate (222) is circular, with a thickness of 1mm-10mm and a diameter of 30mm -300mm.

In the above-mentioned lightweight cement-based composite strip, the steel bars (221) of the grid-shaped steel members (22) are located in the concrete layer (2), and the steel plates (222) are located between the concrete layer (2) and the thermal insulation layer (3). connection surface.

In the above-mentioned lightweight cement-based composite strip, the four corners of the decorative surface layer (1) are respectively provided with first through holes (12), and the four corners of the concrete layer (2) are respectively provided with second through holes The hole (24), the second through hole (24) and the first through hole (12) are integrally used as a reserved hole (8), and the mounting hole (4) and the reserved hole (5) are in one-to-one correspondence and communicate coaxially.

In the above-mentioned lightweight cement-based composite strip, the integrated thermal insulation and decoration wallboard further comprises inserts (7) matched with the reserved holes (8) for blocking the reserved holes of the integrated thermal insulation and decoration wallboard (8), the insert block (7) is provided with a decorative part (71) and a heat preservation part (72), the material of the decorative part (71) is the same as that of the decorative plate (11), and the heat preservation part (72) is made of heat preservation material , which is bonded and fixed with the decorative part (71).

In the above-mentioned lightweight cement-based composite strip, a plurality of dovetail grooves (32) are arranged at intervals on one side of the thermal insulation board (31) of the thermal insulation layer (3), and a plurality of dovetail grooves (32) are arranged on the side of the concrete slab (21). The grooves (32) correspond to the dovetail protrusions (23) that are matched and fitted.

In the above lightweight cement-based composite strip, the boundary of the decorative surface layer (1) shrinks inwardly by 2mm-20mm relative to the boundary of the concrete layer (2).

The present invention also provides a method for making the above-mentioned lightweight cement-based composite strip, which adopts a perfusion method based on a plate bottom mold to complete the production of the lightweight cement-based composite strip, including the following operations:

Place the decorative plate (11) of the decorative surface layer (1), the reserved hole mold (5), the network steel member (22), the reserved spacer (6) and the heat preservation layer (3) in sequence on the plate bottom plate mold. Insulation board (31), wherein the steel plate (222) of the network steel member (22) is placed on the top of the reserved hole mold (5) so that the mounting hole (4) on the steel plate (222) and the reserved hole mold (5) ) alignment, seal and fix the decoration board (11) and the insulation board (31) around to form a pouring space, pour concrete into the pouring space from the pre-set exhaust hole (33) on the insulation board (31), and the concrete is cured The solidified concrete layer (2) consolidates the decorative board (11) and the thermal insulation board (31) into one body, and the lightweight cement-based composite strip is obtained after demoulding.

The present invention also provides another manufacturing method of the above-mentioned lightweight cement-based composite strip, which adopts a casting method based on a plate bottom mold to complete the production of the lightweight cement-based composite strip, including the following operations:

The decorative plate (11) of the decorative surface layer (1), the reserved hole mold (5), the network-shaped steel member (22) and the reserved spacer (6) are sequentially placed on the plate bottom plate mold, wherein the network-shaped The steel plate (222) of the steel member (22) is placed on top of the reserved hole mold (5) so that the mounting hole (4) on the steel plate (222) is aligned with the reserved hole mold (5), and the trim plate (11) is surrounded by Blocking and fixing to form a pouring area, pouring concrete from the top to the pouring area, placing the insulation board (31) with the pre-set vent holes (33) on the concrete and pressing until the insulation board (31) and the reserved hole mold (5) Until the steel plate (222) on the ) comes into contact, the concrete layer (2) formed by curing and solidification of the concrete consolidates the decorative plate (11) and the thermal insulation plate (31) into one, and the lightweight cement-based composite strip is obtained after demoulding .

In the above production method, it also includes:

Making the insert (7): the decorative part (71) is processed with the same material as the decorative plate (11), the thermal insulation part (72) is processed with the same material as the thermal insulation layer (3), and then the decorative part (71) is processed with the same material as the thermal insulation layer (3). The thermal insulation part (72) is firmly bonded with construction glue; the insert block (7) is inserted into the reserved hole (8) for blocking the reserved hole (8) after the lightweight cement-based composite strip is installed on the structural wall.

The beneficial effects of the present invention are as follows: the present invention provides a concrete layer between the decorative surface layer and the thermal insulation layer, the concrete layer consolidates the decorative surface layer and the thermal insulation layer into one body, and pre-embeds the grid-shaped steel members and the thermal insulation layer in the concrete layer. A plurality of installation holes are arranged on the grid-shaped steel members, so that the process of making a hanging board keel on the outer wall of the building can be omitted during installation, reducing field welding work, saving materials and labor, and at the same time ensuring the strength of the strip or avoiding damage. Decorative surface layer to avoid cold and heat bridges; the lightweight cement-based composite strip of the present invention is provided with a matching insert with a decorative part and a heat preservation part, and the insert is used for blocking the remaining space of the installation hole after the strip is installed. , so that the external wall structure after installation avoids the phenomenon of hot and cold bridges.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of Embodiment 1 of the lightweight cement-based composite strip of the present invention;

Fig. 2 is the structural decomposition schematic diagram of the lightweight cement-based composite strip of the present invention;

Fig. 3 is the structural schematic diagram of the embedded steel member in the concrete layer;

Figure 4 is a cross-sectional view taken along line A-A in Figure 1;

Figure 5 is a cross-sectional view taken along line B-B in Figure 1;

6 is a schematic diagram of the arrangement of the embedded steel members in the concrete layer in the manufacturing process;

Fig. 7 is the state schematic diagram of the insulating layer in the production process;

FIG. 8 is a schematic three-dimensional structure diagram of Embodiment 2 of the lightweight cement-based composite strip of the present invention.

The reference numbers in the figure are indicated as:

01-Lightweight cement-based composite slats;

1-decorative surface layer, 11-decorative board, 12-first through hole;

2-Concrete layer, 21-Concrete slab, 22-Grid steel member, 221-Rebar, 222-Steel plate; 23-Dovetail protrusion, 24-Second through hole;

3-Insulation layer, 31-Insulation board, 32-Dovetail groove, 33-Vent hole, 34-Insulation block;

4-Installation hole; 5-Reserved hole mold; 6-Reserved spacer;

7-plug, 71-decoration part, 72-insulation part;

8- Reserved holes.

Detailed ways

The light-weight cement-based composite strip of the present invention and the manufacturing method thereof will be described in detail below with reference to the embodiments and the accompanying drawings.

Example 1

The lightweight cement-based composite strip 01 of the present invention is mainly used as a decorative wallboard for a structural wall in a prefabricated building. The structure of the first embodiment is shown in FIGS. 1 to 5 . The lightweight cement-based composite strip 01 includes a decorative surface layer 1, a concrete layer 2 and a thermal insulation layer 3 sequentially arranged from the outside to the inside. The decorative surface layer 1 and the concrete layer 2 and the concrete layer 2 and the thermal insulation layer 3 are bonded Connection, that is, the decorative surface layer 1 and the thermal insulation layer 3 are consolidated into one through the concrete layer 2, wherein:

The outermost layer of the lightweight cement-based composite strip 01 is a decorative surface layer 1. The decorative surface layer 1 mainly plays a decorative role. The outer surface of the decorative plate 11 is provided with patterns. As shown in FIG. 2, the shape of the decorative surface layer 1 In strip shape, the decorative plate 11 of the decorative surface layer 1 may be made of cement-based, stone or metal decorative materials, and the four corners of the decorative surface layer 1 are respectively provided with first through holes 12 . The thickness of the decorative plate 11 of the decorative surface layer 1 is generally set according to actual design requirements, preferably 1 mm-10 mm.

The concrete layer 2 is the middle layer of the lightweight cement-based composite strip 01. The concrete plate 21 of the concrete layer 2 is used to bond the decorative layer 1 and the thermal insulation layer 3 together. The grid-like steel members 22 are embedded in the concrete plate 21. , the grid steel member 22 is provided with a plurality of through holes as the mounting holes 4 .

In one embodiment, referring to FIGS. 3 to 5 , the grid-like steel member 22 includes steel bars 221 forming a grid structure and steel plates 222 fixed at four corners of the grid, the intersections of the steel bars 221 and the steel bars 221 and the steel plates 222 . The connecting parts of the concrete slab 21 are fixed by welding, and the mounting holes 4 are arranged on the steel plate 222; the four corners of the concrete slab 21 are respectively provided with second through holes 24, and the second through holes 24 correspond to the first through holes 12 one-to-one and are coaxial The installation is set as a reserved hole 8 as a whole, and the installation hole 4 is in one-to-one correspondence with the reserved hole 8 and communicated coaxially.

Preferably, the steel plate 222 is a circular plate with a thickness of 1mm-10mm and a diameter of 30mm-300mm, and the diameter of the through holes of the steel plate 222 is 2mm-50mm.

Preferably, the boundary of the decorative panel 11 of the decorative surface layer 1 is shrunk inward by 2mm-20mm relative to the boundary of the concrete panel 21 of the concrete layer 2. This design can not only reduce the loss caused by the collision of the decorative surface during the transportation of the finished panel, but also After assembling, reserve space for seam glue at the seam.

As the innermost layer of the lightweight cement-based composite strip 01, the thermal insulation layer 3 mainly plays the role of thermal insulation. The thickness of the thermal insulation board 31 of the thermal insulation layer 3 needs to meet certain thermal insulation requirements. The thickness of the thermal insulation board 31 in the present invention is preferably 30mm. -220mm. The thermal insulation board 31 may be made of thermal insulation materials such as extruded polystyrene board, expanded polystyrene board or rock wool board.

As shown in FIG. 5 , a plurality of dovetail grooves 32 are arranged at intervals on one side of the thermal insulation board 31 of the thermal insulation layer 3 . (The matching dovetail protrusions 23 are formed during the concrete pouring process) to strengthen the bonding force between the thermal insulation layer 3 and the concrete layer 2 .

During installation, drill holes on the structural wall at the positions corresponding to the installation holes 4 of the lightweight cement-based composite strips 01, and use common installation components to pass through the reserved holes 8, installation holes 4, and thermal insulation layer 3 in turn. The grid-like steel members 22 embedded in the layer 2 are fixed together with the building structural wall, and the lightweight cement-based composite strip 01 can be firmly fixed on the structural wall through this installation structure, eliminating the need for additional components outside the structural wall. Do the hanging board keel process, saving labor and material.

Embodiment 2

In the second embodiment shown in FIG. 7 , the structure of the lightweight cement-based composite strip 01 is basically the same as that of the first embodiment, and the similarities will not be repeated; the difference is that the lightweight cement-based composite strip 01 is also Including a plug 7 matching the reserved hole 8, the plug 7 is provided with a decorative part 71 and a heat preservation part 72, wherein the material of the decorative part 71 is the same as that of the decorative plate 11, and the heat preservation part 72 is made of heat preservation material , and the decorative part 71 is firmly bonded with construction glue. Preferably, the material of the thermal insulation portion 72 of the insert block 7 may be the same as or different from that of the thermal insulation board 31 , and the thickness of the thermal insulation portion 72 is based on the space in the installation hole 4 reserved for the installation of the lightweight cement-based composite strip 01 The size is determined, preferably 5mm-100mm.

The installation process of the second embodiment is basically the same as that of the first embodiment. The reserved hole 8 is blocked, so that the surface of the decorative part 71 of the insert block 7 is flush with the surface of the decorative surface layer 1, and the joint between the decorative part 71 and the decorative surface layer 1 is painted with the decorative surface layer 1. Sealing paint in the same color for aesthetics.

In the installation structure of the second embodiment, inserting blocks 7 with thermal insulation materials are inserted into the reserved holes 8, so that the installed lightweight cement-based composite strip 01 can avoid the generation of thermal bridges.

method

The above-mentioned lightweight cement-based composite strip 01 is fabricated on a plate bottom plate mold, and the plate bottom plate mold is a commonly used template for making prefabricated wall panels. One of the manufacturing methods of the lightweight cement-based composite strip 01 is to use the perfusion method based on the template. The steel member 22, the reserved spacer 6 and the thermal insulation board 31 of the thermal insulation layer 3, wherein the steel plate 222 of the network steel member 22 is placed on the top of the reserved hole mold 5 so that the mounting hole 4 on the steel plate 222 is connected to the reserved hole mold 5 Alignment, the reserved hole mold 5 and the reserved spacer 6 are basically the same as the predetermined thickness of the concrete layer 2, the decorative board 11 and the insulation board 31 are sealed and fixed to form a filling space, and the exhaust gas preset on the insulation board 31 is blocked and fixed. The hole 33 pours concrete into the pouring space, and the concrete layer 2 formed by curing and solidifying consolidates the decorative board 11 and the thermal insulation board 31 into a whole, and the lightweight cement-based composite strip 01 is obtained after demoulding. The specific operations are as follows:

11) Place the decorative plate 11 and the reserved hole mold 5: place the decorative plate 11 with the pattern facing down on the plate bottom mold, and then place the reserved hole mold 5 on which the surface is coated with release agent on the first surface of the decorative plate 11. The reserved hole 12, wherein the cross-sectional shape and size of the reserved hole die 5 match the cross-sectional shape and size of the first reserved hole 12;

12) Place the grid-shaped steel member 22: Referring to FIG. 6, place the designed grid-shaped steel member 22 above the decorative plate 11, so that the steel plate 222 of the grid-shaped steel member 22 is placed on the surface of the reserved hole mold 5. At the top, a certain distance is reserved between the steel bar 221 and the decorative plate 11 (the steel bar 221 and the steel plate 222 are not on the same plane);

13) Place the reserved pads 6: place the reserved pads 6 with preset height values on the decorative board 11 at intervals, wherein the reserved pads 6 are of the same material as the concrete slab 21 of the concrete layer 2, so that the Ensure that the concrete layer 2 has the same expansion coefficient;

14) Pretreatment of the insulation board 31: Punch out a plurality of exhaust holes 33 on the insulation board 31 at intervals, and place the side where the dovetail groove 32 of the insulation board 31 is located on the reserved pad 6 and the reserved hole mold 5. On the steel plate 222 (so that the steel plate 222 is located on the connecting surface of the thermal insulation layer 3 and the concrete layer 2), the periphery between the thermal insulation board 31 and the decorative board 11 is sealed with a template, and the thermal insulation board 31 is firmly fixed, and the thermal insulation board 31 and the decorative board 11 are sealed. A filling space is formed between the decorative panels 11 .

15) Concrete pouring: pour concrete (preferably aerated concrete) into the pouring space from the exhaust hole 33 in the middle area of the insulation board 31, and vibrate (after the mold is fixed, hammer the side with a rubber hammer to vibrate) until the decoration is completed. The pouring space between the board 11 and the thermal insulation board 31 is filled with concrete to form the concrete layer 2 .

16) Blocking the exhaust hole 33 of the insulation layer 3: clean the exhaust hole 33, and insert the insulation block 34 matching the exhaust hole 33 into the exhaust hole 33 of the insulation board 31. The material and thickness of the thermal insulation board 31 are the same.

17) After curing and demoulding, the production of the lightweight cement-based composite strip 01 can be completed.

Another production method of the lightweight cement-based composite strip 01 is a casting method based on a plate bottom mold. The steel member 22 and the reserved spacer 6, wherein the steel plate 222 of the network steel member 22 is placed on the top of the reserved hole mold 5 so that the mounting hole 4 on the steel plate 222 is aligned with the reserved hole mold 5, and the decorative plate 11 is surrounded by Blocking and fixing to form a pouring area, pouring concrete from the upper direction to the pouring area, placing the insulation board 31 with the pre-set vent holes 33 on the concrete and pressing until the insulation board 31 is in contact with the steel plate 222 on the reserved hole mold 5, The concrete layer 2 formed by curing and solidification of the concrete consolidates the decorative board 11 and the thermal insulation board 31 into a whole, and after demoulding, a lightweight cement-based composite strip 01 is obtained. The specific operations are as follows:

21) Place the decorative plate 11 and the reserved hole mold 5: place the decorative plate 11 with the pattern facing down on the plate bottom mold, and then place the reserved hole mold 5 on which the surface is coated with release agent on the first surface of the decorative plate 11. The reserved hole 12, wherein the cross-sectional shape and size of the reserved hole die 5 match the cross-sectional shape and size of the first reserved hole 12;

22) Place the grid-shaped steel member 22: place the designed grid-shaped steel member 22 on the top of the decorative plate 11, so that the steel plate 222 of the grid-shaped steel member 22 is placed on the top of the reserved hole mold 5, and the steel bar 221 A certain distance is reserved between the decorative board 11;

23) Place the reserved pads 6: place the reserved pads 6 with a preset height value (that is, the thickness of the concrete layer 2) on the decorative board 11 at intervals, wherein the reserved pads 6 and the concrete layer 2 are separated. The material of the concrete slab 21 is the same to ensure that the concrete layer 2 has the same expansion coefficient; the surrounding of the decorative slab 11 is sealed and fixed to form a pouring space.

24) Concrete pouring: pour concrete from the upper pouring area, and vibrate the concrete. After the mold is fixed, hammer the side with a rubber hammer to vibrate until the concrete submerges the reserved pad 6 and reaches a predetermined height (for example, more than Reserve the top 10mm-20mm of the pad 6); then place the insulation board 31 with the vent holes 33 in advance on the upper part of the concrete and press it until the insulation board 31 contacts the steel plate 222 on the reserved hole mold 5, and the concrete is After curing and solidification, the concrete layer 2 is formed, and the decorative board 11 and the thermal insulation board 31 are consolidated into one body.

25) After demoulding, a lightweight cement-based composite strip 01 is obtained.

The other processes are the same as the above method, and are not repeated here.

For the structure of the second embodiment of the lightweight cement-based composite strip 01, the manufacturing method further includes:

Manufacture of insert 7: The decorative part 71 is processed with the same material as the decorative board 11, the thermal insulation part 72 is processed with the same material as the thermal insulation layer 3, and then the decorative part 71 and the thermal insulation part 72 are firmly bonded with construction glue. The insert block 7 is inserted into the reserved hole 8 for blocking the reserved hole 8 after the lightweight cement-based composite strip 01 is installed on the structural wall.

The manufacturing method of the above-mentioned lightweight cement-based composite strip 01, the process is simplified, the operation is simple, and by punching a plurality of exhaust holes on the thermal insulation board 31, it is beneficial to fully exhaust during the concrete pouring process and enhance the compactness of the concrete layer 2, Avoid too long the exhaust distance in the pouring space, the air cannot be discharged, and finally the negative effects such as empty drums are formed at the contact surface.

Those skilled in the art should understand that these embodiments are only used to illustrate the present invention and do not limit the scope of the present invention, and various equivalent variations and modifications made to the present invention belong to the disclosure of the present invention.

Claims (10)

1. The utility model provides a compound slat of light cement base, is used as the decorative wallboard of structure wall body, including architectural surface (1) and heat preservation (3), its characterized in that, still including setting up concrete layer (2) between architectural surface (1) and heat preservation (3), architectural surface (1) and heat preservation (3) concreties into the integral type through concrete layer (2), and pre-buried latticed steel member (22) have in concrete layer (2), are equipped with a plurality of through-holes on latticed steel member (22) as mounting hole (4).

2. The lightweight cement-based composite strip as claimed in claim 1, wherein the latticed steel member (22) comprises reinforcing bars (221) forming a latticed structure and steel plates (222) fixed to four corners of the latticed structure, the intersections of the reinforcing bars (221) and the connecting portions of the reinforcing bars (221) and the steel plates (222) are fixed, and the mounting holes (4) are provided in the steel plates (222); preferably, the steel plate (222) is circular, has a thickness of 1mm to 10mm and a diameter of 30mm to 300 mm.

3. The lightweight cement-based composite plank as claimed in claim 2, wherein the steel reinforcement (221) of the lattice-like steel member (22) is located inside the concrete layer (2), and the steel plate (222) is located on the joint surface between the concrete layer (2) and the insulating layer (3).

4. The lightweight cement-based composite plank as claimed in any one of claims 1 to 3, wherein the four corners of the decorative surface layer (1) are respectively provided with a first through hole (12), the four corners of the concrete layer (2) are respectively provided with a second through hole (24), the second through holes (24) and the first through holes (12) are integrally formed as a reserved hole (8), and the mounting holes (4) and the reserved holes (5) are in one-to-one correspondence and are coaxially communicated.

5. The light cement-based composite slat as recited in claim 4, wherein the insulation and decoration integrated wall panel further comprises an insert block (7) matching with the preformed hole (8) for plugging the preformed hole (8) of the insulation and decoration integrated wall panel, the insert block (7) is provided with a decoration portion (71) and an insulation portion (72), the decoration portion (71) is made of the same material as the decoration plate (11), and the insulation portion (72) is made of an insulation material and is bonded and fixed with the decoration portion (71).

6. The insulation and decoration integrated external wall structure according to any one of claims 1 to 5, wherein a plurality of dovetail grooves (32) are arranged on one side surface of the insulation board (31) of the insulation layer (3) at intervals, and a plurality of dovetail protrusions (23) correspondingly matched and embedded with the dovetail grooves (32) are arranged on the side surface of the concrete plate (21).

7. An insulating and decorative integrated exterior wall structure according to any one of claims 1 to 6, wherein the boundary of the decorative face layer (1) is inwardly contracted by 2mm to 20mm with respect to the boundary of the concrete layer (2).

8. A method for manufacturing a lightweight cement-based composite strip as claimed in any one of claims 1 to 7, which is performed by a pouring method based on a slab floor mold, comprising the following operations:

place decorative board (11) of decorative covering (1) on panel bottom plate mould in proper order, reserve hole mould (5), network form steel member (22), reserve heated board (31) of cushion (6) and heat preservation (3), wherein, the top of reserving hole mould (5) is arranged in steel sheet (222) of network form steel member (22) makes mounting hole (4) on steel sheet (222) counterpoint with reserve hole mould (5), with fixed formation of shutoff all around decorative board (11) and heated board (31) the space of pouring, from exhaust hole (33) of setting in advance on heated board (31) to pouring concrete in the space, concrete layer (2) that the concrete solidifies formation through the maintenance with decorative board (11) and heated board (31) concreties as an organic wholely, obtain this light cement base composite slat after the drawing of patterns.

9. A method for manufacturing a lightweight cement-based composite strip as claimed in any one of claims 1 to 7, which is performed by a slab floor mold-based pouring method, comprising the following operations:

a decorative plate (11) of the decorative surface layer (1), a reserved hole die (5), a net-shaped steel member (22) and a reserved cushion block (6) are sequentially arranged on the plate bottom plate die, the method comprises the following steps of placing a steel plate (222) of a network-shaped steel member (22) on the top of a reserved hole die (5) to enable a mounting hole (4) in the steel plate (222) to be aligned to the reserved hole die (5), plugging and fixing the periphery of a decorative plate (11) to form a pouring area, pouring concrete from the upper side to the pouring area, placing a heat insulation plate (31) with a preset exhaust hole (33) on the concrete and pressing until the heat insulation plate (31) is in contact with the steel plate (222) in the reserved hole die (5), solidifying the decorative plate (11) and the heat insulation plate (31) into a whole through a concrete layer (2) formed by concrete through curing and solidification, and demolding to obtain the light cement-based composite lath.

10. The method of manufacturing according to claim 8 or 9, further comprising:

manufacturing an insert block (7): the decoration part (71) is made of the same material as the decoration plate (11), the heat preservation part (72) is made of the same material as the heat preservation layer (3), and then the decoration part (71) and the heat preservation part (72) are firmly bonded by building glue; the inserting block (7) is inserted into the preformed hole (8) and used for plugging the preformed hole (8) after the light cement-based composite slat is installed to the structural wall.

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