CN219011771U

CN219011771U - Fair-faced concrete facing integrated plate and preparation mold thereof

Info

Publication number: CN219011771U
Application number: CN202320114982.1U
Authority: CN
Inventors: 陈正景; 郑宪凯; 康剑; 王永刚; 李光辉; 傅雁
Original assignee: Zhangjiagang Fuke New Building Materials Co ltd; Suzhou Fuclear Technology Co ltd
Current assignee: Zhangjiagang Fuke New Building Materials Co ltd; Suzhou Fuclear Technology Co ltd
Priority date: 2023-01-20
Filing date: 2023-01-20
Publication date: 2023-05-12
Anticipated expiration: 2033-01-20

Abstract

The utility model discloses an integrated plate with a bare concrete facing and a preparation mold thereof. The integrated board is formed by compounding a substrate layer and a bare concrete facing layer, wherein the thickness of the substrate layer is 6-9 mm, the thickness of the bare concrete facing layer is 2-4 mm, and grinding vitrified micro-bead particles are distributed in the bare concrete facing layer. The preparation mould includes the base plate layer, sets up metal frame, PVC hard sheet and the gravity balance pipe around the base plate layer, and the space that base plate layer and metal frame surrounded constitutes the fair-faced concrete finish layer appearance chamber, and PVC hard sheet area is greater than the area of base plate layer and covers on the fair-faced concrete finish layer appearance chamber, and the gravity balance pipe has the degree of freedom at PVC hard sheet surface rolling. The utility model realizes the lightening of the whole facing integrated plate while providing the decorating effect of the bare concrete.

Description

Fair-faced concrete facing integrated plate and preparation mold thereof

Technical Field

The utility model relates to a building inner wall decoration material, in particular to an inner wall integrated wallboard, and especially relates to a bare concrete facing integrated board and a preparation mold thereof.

Background

As the bare concrete has a unique surface structure and a sense of materials, the bare concrete becomes a representation method of modern sense of construction. In the prior art, bare concrete is generally cast by adopting a steel template, has a smooth and clean surface, and has tiny air holes and irregular chromatic aberration of cement unevenness. The joints of the steel templates can form joints on the surface of the bare concrete. In order to prevent shrinkage cracking of concrete, shrinkage joints are also required to be cut at prescribed intervals. As the age of the weather progresses, water and rain marks are left on the concrete surface. The concrete is reinforced by the steel bars, water vapor permeates and air carbonizes, so that the steel bars are rusted, and brown rust with spots can be spread on the surface.

When cast-in-situ molding is adopted for the bare concrete, the molding difficulty for indoor wall decoration is high; however, if the bare concrete is made into a decorative board, the weight is heavy, and the bare concrete is usually supported by adopting a keel structure, so that the bare concrete is generally difficult to be used for indoor decoration.

Therefore, if a lightweight integrated panel for a bare concrete veneer can be provided, which can realize the surface texture of the bare concrete and simultaneously provide very light overall weight, but has enough bending strength to ensure the requirement of one-day form removal time, the application of the bare concrete in interior decoration can be conveniently realized.

Disclosure of Invention

The utility model aims to provide a bare concrete facing integrated plate, which solves the problems of difficult construction, too high dead weight and easy shrinkage and cracking of a bare concrete inner wall; the utility model further aims to provide a preparation mould of the bare concrete veneer.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the integrated plate is formed by compounding a substrate layer and a bare concrete facing layer, wherein the thickness of the substrate layer is 6-9 mm, the thickness of the bare concrete facing layer is 2-4 mm, and grinding vitrified micro-bead particles are distributed in the bare concrete facing layer.

In the technical scheme, the particle size of the ground vitrified microbead particles is 0.425-0.850 mm.

In the preferable technical scheme, in the bare concrete facing layer, the volume occupied by the ground vitrified microbead particles is 1/3-1/2 of the volume of the whole facing layer.

According to the preferred technical scheme, the substrate layer is a bamboo wood fiber wall panel.

The flexural strength of the exposed concrete facing layer after being molded for 1 day is more than 12MPa so as to meet the condition of demolding.

In order to achieve the other object of the utility model, a preparation mould of an integrated plate for the fair-faced concrete veneer is provided, which comprises a substrate layer, a metal frame arranged around the substrate layer, a PVC hard sheet and a gravity balance pipe, wherein a space surrounded by the substrate layer and the metal frame forms a cavity for the fair-faced concrete veneer, the area of the PVC hard sheet is larger than that of the substrate layer and covers the cavity for the fair-faced concrete veneer, and the gravity balance pipe has the freedom degree of rolling on the surface of the PVC hard sheet.

In the technical scheme, the inner surface of the metal frame is coated with a lubricating oil layer, and the thickness of the lubricating oil layer is 10-30 microns.

In the technical scheme, the inner surface of the PVC hard sheet is sprayed with the water-based release agent layer, and the thickness of the water-based release agent layer is 20-50 microns.

According to the preferable technical scheme, the thickness of the PVC hard sheet is 1-2mm.

In the technical scheme, the gravity balance pipe has the outer diameter of 150mm, the length of 1200mm and the weight of 15-25 kg.

The preparation method can be carried out according to the following steps:

step 1, cutting and arranging a substrate layer according to design requirements;

step 2, uniformly spraying an aqueous release agent after the PVC hard sheet is tiled, wherein the thickness is about 20-50 microns, and drying at normal temperature for half an hour;

step 3, fixing four edges of the integrated plate by the stainless steel frame, and uniformly brushing synthetic lubricating oil on the surfaces of the four edges, wherein the thickness of the synthetic lubricating oil is about 10-30 microns;

pouring the stirred clear water concrete slurry, and uniformly spreading by using a scraper to ensure that the slurry is leveled with the inner frame of the stainless steel and does not overflow;

the clear water concrete facing layer slurry can be uniformly mixed according to the following weight proportion: portland cement, sulphoaluminate cement, ground vitrified microbead fine particles, sodium polyacrylate, water, black pigment and red pigment=1-2:2-1:0.2-0.4:0.004-0.006:0.4-0.6:0.01-0.02:0.001-0.003. The fine particles of the vitrified microbeads are obtained by properly grinding the vitrified microbeads of commercial products to ensure that the fineness of the vitrified microbeads is between 20 and 40 meshes (0.850 and 0.425 mm), so that the vitrified microbeads have certain granularity, prevent slurry cracking and have the characteristic of light weight.

The portland cement and the sulphoaluminate cement can also be replaced by a mixture of ordinary high-alumina cement and white high-alumina cement. And the special water reducer for the high alumina cement is correspondingly added.

And 5, covering one end of the substrate layer with the rolled PVC hard sheet, uniformly rolling the gravity balance pipe from one end to the other end above the PVC hard sheet, extruding redundant clear water concrete slurry, and discharging redundant air at the same time, so that the surface of the concrete slurry has the texture of a clear water concrete facing.

And 6, after 24 hours, hardening the fresh water concrete, slowly uncovering the PVC hard sheet from one end to the other end of the plate, disassembling the four strips of stainless steel, covering the wet maintenance towel, and maintaining for 24 hours.

And 7, drying to obtain the integrated plate with the bare concrete facing, wherein the total thickness of the plate body is 12mm, the thickness of the concrete facing layer is 3mm, and the surface texture is the effect of the casting surface of the bare concrete.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the substrate layer and the fresh water concrete facing layer are compounded, the substrate layer provides the supporting hardness, the thickness of the facing layer can be reduced, and the ground vitrified micro bubble particles are distributed in the facing layer, so that the light weight of the whole facing integrated board is realized while the decoration effect of the fresh water concrete is provided.

2. The utility model uses the substrate layer as a part of the preparation mould, forms the containing cavity of the facing layer by using the detachable metal frame and the substrate layer, realizes thickness control by using the PVC hard sheet and the gravity balance pipe, discharges redundant air, and can conveniently prepare and obtain the required facing integrated board.

3. The utility model adopts the clear water concrete slurry to directly make on the integrated board, the surface texture is controllable, the board body is lighter, the mass production can be realized, the wall body can be installed by adopting the board penetrating mode without high requirement on the blank wall surface, the installation is convenient, the time and the labor are saved.

Drawings

FIG. 1 is a schematic view of a manufacturing mold according to a first embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1.

1. A substrate layer; 2. stainless steel frame; 3. PVC hard sheets; 4. and the bare concrete facing layer is provided with a cavity.

Detailed Description

The utility model is further described below with reference to examples:

example 1

Referring to fig. 1 and 2, the balance tube is not shown, and fig. 2 is only used for illustrating the hierarchical relationship because of the size display relationship and the non-uniform ratio between the horizontal and vertical directions. The integrated plate for the bare concrete facing comprises a substrate layer 1, a stainless steel frame 2, a PVC hard sheet 3 and a balance pipe. The substrate layer is made of bamboo fiber plates, and the length, width and thickness of the substrate layer are 3000mm, 600mm and 9mm. The stainless steel frame fixes four edges of the substrate layer to form the bare concrete facing layer cavity 4. Pouring the stirred clear water concrete slurry, covering the PVC hard sheet at one end of the substrate layer, rolling and extruding the PVC hard sheet by a gravity balance pipe to discharge redundant slurry and air, uncovering the PVC hard sheet after 24 hours, disassembling four stainless steel strakes, covering a wet maintenance towel and maintaining for 24 hours; and drying for 48 hours to obtain the bare concrete facing integrated plate.

In this embodiment, the formulation of the finish concrete facing layer slurry is: the cement comprises the following components in parts by weight: sodium polyacrylate: water: black pigment: red pigment = 1.8:1.2:0.3:0.008: 0.006:0.50: 0.01:0.002. The width of the adopted PVC hard sheet is 1000mm, and the length is 4000mm; the thickness is 1-2mm. The width of the maintenance towel is 800mm, and the length is 4000mm. The external diameter of the gravity balance pipe is 150mm, the thickness is 4mm, the length is 1200mm, and the weight is 20 kg.

The obtained integrated plate of the bare concrete facing has the thickness of 12mm, the thickness of the surface finishing layer of 3mm, and the surface of the integrated plate is smooth and has no cracks. The detection proves that the weight per square meter is less than 8kg, and the flexural strength is more than 16MPa.

As a comparative example, the proportion was the same as above except that the pulverized and vitrified microbead particles were replaced with quartz sand of the same fineness, and the weight of the produced decorative sheet was remarkably increased and the surface had micro cracks. The reason is that the vitrified microbead particles have the function of absorbing water, can provide hydration water when the cement is hardened, improve the hydration degree of the cement and prevent cracks from generating.

Example two

The integrated plate with the bare concrete facing comprises a bare concrete facing layer and a substrate layer. The substrate layer in this embodiment is a stone plastic integrated board, and the length x width x thickness is 2800mm x 400mm x 6mm. The four edges of the integrated board are fixed by the stainless steel frame, the stirred clear water concrete slurry is poured into the integrated board, the rolled PVC hard sheet is covered at one end of the integrated board, the gravity balance pipe is rolled and extruded to discharge redundant slurry and air, the PVC hard sheet is uncovered after 24 hours, the four edges of the stainless steel are disassembled, the wet maintenance towel is covered for maintenance for 24 hours, and the clear water concrete facing integrated board is obtained after drying for 48 hours.

In this embodiment, the formulation of the finish concrete facing layer slurry is: the weight ratio of the common high alumina cement to the white high alumina cement to the ground vitrified micro bubble fine particles to the C900 polycarboxylate water reducer is as follows: sodium polyacrylate: water: black pigment: red pigment = 2.1:0.9:0.6:0.007:0.004:0.43:0.01:0.001.

The surface of the integrated plate with the bare concrete facing is smooth and has no cracks. The strength of the steel plate in one day is 13.2MPa.

As a comparative example, the formulation was substantially the same as above except that sodium polyacrylate was not added, and the surface of the produced decorative sheet had micro cracks. The sodium polyacrylate is adsorbed on the surface of cement, has a water-retaining effect, can provide hydration water when the cement is hardened, improves the hydration degree of the cement, and prevents cracks from generating. The two different substrates only have the difference in size, and have no influence on the manufacturing process and the facing effect.

Claims

1. The utility model provides a bare concrete veneer integrated board which characterized in that: the composite type bare concrete finishing layer is composed of a substrate layer and a bare concrete finishing layer, wherein the thickness of the substrate layer is 6-9 mm, the thickness of the bare concrete finishing layer is 2-4 mm, and grinding vitrified micro-bead particles are distributed in the bare concrete finishing layer.

2. The bare concrete facing integrated panel according to claim 1, wherein: the particle size of the ground vitrified microbead particles is 0.425-0.850 mm.

3. The bare concrete facing integrated panel according to claim 1, wherein: in the bare concrete facing layer, the volume occupied by the ground vitrified microbead particles is 1/3-1/2 of the volume of the whole facing layer.

4. The bare concrete facing integrated panel according to claim 1, wherein: the substrate layer is a bamboo wood fiber wall panel.

5. A preparation mould of bare concrete veneer integrated board, its characterized in that: including the base plate layer, set up metal frame, PVC hard sheet and the gravity balance pipe around the base plate layer, the space that base plate layer and metal frame surrounded constitutes the fair-faced concrete finish layer appearance chamber, PVC hard sheet area is greater than the area of base plate layer and cover in on the fair-faced concrete finish layer appearance chamber, the gravity balance pipe has the degree of freedom that PVC hard sheet surface rolled.

6. The mold for preparing the integrated plate for the fair-faced concrete according to claim 5, wherein: the inner surface of the metal frame is coated with a lubricating oil layer, and the thickness of the lubricating oil layer is 10-30 microns.

7. The mold for preparing the integrated plate for the fair-faced concrete according to claim 5, wherein: the inner surface of the PVC hard sheet is sprayed with a water-based release agent layer, and the thickness of the water-based release agent layer is 20-50 microns.

8. The mold for preparing the integrated plate for the fair-faced concrete according to claim 5, wherein: the thickness of the PVC hard sheet is 1-2mm.

9. The mold for preparing the integrated plate for the fair-faced concrete according to claim 5, wherein: the external diameter of the gravity balance pipe is 150mm, the length is 1200mm, and the weight is 15-25 kg.