CN210421901U

CN210421901U - Bare concrete formwork

Info

Publication number: CN210421901U
Application number: CN201920583626.8U
Authority: CN
Inventors: 孙培俊; 杨宁; 李昂锦; 李飞洪; 李光耀; 陈龙威; 赵美霞
Original assignee: Jiangsu Jianzhu Institute
Current assignee: Jiangsu Institute of Architectural Technology; Jiangsu Jianzhu Institute
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-04-28
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a fair-faced concrete template, which comprises a fair-faced concrete template, a template base layer and a template surface layer; the template base layer is made of a glued wood template; the surface layer of the template is a PVC hard board which is fixed and tightly attached to the glued wood template. The template base layer of the utility model is made of the glued wood template 1, the material is easy to obtain, the price is low, and the glued wood template base layer is only used as the template base layer, so that the turnover frequency is greatly improved; the template surface layer is made of a PVC hard plate 3, and has good chemical stability, corrosion resistance, aging resistance, reliable insulating property, high strength, high hardness and flame retardance; the water absorption and deformation are avoided, the processing is easy, and the requirements of various shapes of the building formwork can be met; the surface is flat and smooth, demoulding can be easily carried out without a demoulding agent, the technical requirements of fair-faced concrete construction can be well met, energy is saved, environment is protected, corner waste materials can be recycled, and the use cost is reduced.

Description

Bare concrete formwork

Technical Field

The utility model relates to a building materials especially relates to a clear water concrete form.

Background

The fair-faced concrete is also called as building artistic concrete, shaping surface concrete or decorative concrete, so that it is named for its great artistry, ornamental value and environmental harmony, and is the highest level of concrete art. The concrete is formed by one-step pouring, no external decoration is made, and the natural texture of the formed concrete is directly used as a decorative effect, so that the concrete is different from common concrete. At present, the general method of fair-faced concrete is to select a steel template as a template surface layer, and the steel template also has a series of problems of large material consumption, large manual investment, high labor intensity, few turnover times, low working efficiency and the like. In order to facilitate demoulding, the inner side of the surface of the steel mould needs to be coated with a demoulding agent. The common release agent is liquid and powdery release agent, but the phenomena of brush leakage and uneven brushing of the release agent often occur in the brushing process, the uneven brushing or brush leakage of the release agent can cause the uneven forming quality of the surface of the fair-faced concrete, the attractiveness is affected, and after the template is removed, the trace of the release agent is easily left on the surface of the concrete, and the decorative effect of the fair-faced concrete is seriously affected. In addition, most of the templates in the market have no heat preservation measures, and particularly in winter construction, when the temperature is too high or too low or the temperature difference is large, the pouring forming of the fair-faced concrete is greatly influenced.

Disclosure of Invention

The utility model discloses the purpose is: the bare concrete template is easy to process, convenient to demould, capable of rotating for many times and good in heat preservation performance.

In order to solve the technical problem, the utility model adopts the following technical scheme: a bare concrete template comprises a bare concrete template, a template base layer and a template surface layer; the template base layer is made of a glued wood template; the surface layer of the template is a PVC hard board which is fixed and tightly attached to the glued wood template.

The utility model discloses it is further, be equipped with the heat preservation between template basic unit and the template surface course, evenly paint one deck phenolic foam between veneer lumber form and the PVC hardboard surface and glue the two and connect, the phenolic foam forms the heat preservation.

The utility model discloses it is further, gu the glued wooden template passes through self tapping screw fastening with the PVC hardboard.

The utility model discloses a further, phenolic foam is glued 0.5-2mm thick.

According to the above technical scheme, the utility model has the advantages of as follows:

(1) the template base layer is made of glued wood templates, the materials are convenient to obtain, the price is low, and the template base layer is only used as the template base layer, so that the turnover frequency is greatly improved;

(2) the ideal demoulding effect can be achieved by utilizing the excellent flatness and smoothness of the surface of the PVC hard board without smearing a demoulding agent;

(3) the phenolic foam adhesive heat-insulating layer is arranged, so that heat insulation is facilitated, and concrete pouring failure and template deformation caused by supercooling or overheating are avoided;

(4) a layer of PVC hard board is added on the glued wood template to serve as a template surface layer, when the contact surface is polluted and damaged and needs to be replaced, only the PVC hard board surface layer needs to be replaced, the glued wood template does not need to be replaced, and the unit area cost of the PVC hard board is far lower than that of the glued wood template;

(5) after the PVC hard board surface layer is replaced, the PVC hard board surface layer can be used for a temporary enclosure system on a construction site, the recycling rate is high, and the resource waste is small.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-gluing a wood template; 2-phenolic foam rubber; 3-PVC hard board; 4-self-tapping screw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses an embodiment: as shown in fig. 1, a bare concrete form comprises a form base layer and a form surface layer; the template base layer is made of a glued wood template 1; the template surface layer is a PVC hard board 3, and the PVC hard board 3 is fixed and tightly attached to the glued wood template 1. The template base layer is made of the laminated wood template 1, the materials are convenient to obtain, the price is low, and the template base layer is only used as the template base layer, so that the turnover frequency is greatly improved; the template surface layer is made of a PVC hard plate 3, and has good chemical stability, corrosion resistance, aging resistance, reliable insulating property, high strength, high hardness and flame retardance; the water absorption and deformation are avoided, the processing is easy, and the requirements of various shapes of the building formwork can be met; the surface is flat and smooth, demoulding can be easily carried out without a demoulding agent, the technical requirements of fair-faced concrete construction can be well met, energy is saved, environment is protected, corner waste materials can be recycled, and the use cost is reduced.

In other embodiments of the utility model, all the other are the same with above-mentioned embodiment, and the difference lies in, as shown in fig. 1, be equipped with the heat preservation between template basic unit and the template surface course, evenly paint one deck phenolic foam between 3 surfaces of veneer lumber form 1 and PVC hardboard and glue 2 and connect the two, phenolic foam glues 2 formation heat preservation. Wherein the 2 layers of phenolic foam are preferably 0.5-2mm thick. The heat-insulating layer is composed of phenolic foam adhesive, has a uniform closed cell structure, low heat conductivity coefficient and good thermal insulation performance, is a good heat-insulating material, and has a wide application temperature range of-140 ℃ to-140 ℃; the size is stable after the shaping, and the change rate is little, and the change rate of size is only about 4% in application temperature range, and has certain adhesive property, makes things convenient for the connection of template basic unit and surface course, and the cost of phenolic foam glue is very low in addition, only is equivalent to adopting two-thirds of polyurethane foam cost.

In other embodiments of the present invention, the rest of the embodiments are the same as the above embodiments, except that, as shown in fig. 1, the solid-glued wooden form 1 is fastened to the PVC hard board 3 by a self-tapping screw 4. The connection stability of the connection is further ensured by the bonding performance of the phenolic foam adhesive through the connection capacity of the self-tapping screw.

Combine above-mentioned embodiment, the utility model discloses clear water concrete form manufacture process as follows:

A. manufacturing a glued wood template 1 according to the shape of the cast body;

B. uniformly coating a layer of phenolic foam glue 2 on the surface of the laminated wood template 1 to form a heat insulation layer, wherein the thickness of the phenolic foam glue 2 is preferably 0.5-2mm and can be determined according to design requirements;

C. fixing and tightly attaching a plurality of PVC hard plates 3 on the surface of the glued wooden template 1, wherein no empty drum exists between the glued wooden template 1 and the PVC hard plates 3;

D. the connection between the glued wooden template 1 and the PVC hard board 3 is reinforced by driving the self-tapping screw 4.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All equivalent changes or modifications made according to the spirit of the main technical solution of the present invention should be covered within the protection scope of the present invention.

Claims

1. The fair-faced concrete formwork is characterized by comprising a formwork base layer and a formwork surface layer;

the template base layer is made of a glued wood template (1); the laminated plywood is characterized in that the template surface layer is a PVC hard board (3), the PVC hard board (3) is fixed and tightly attached to the laminated wood template (1), a heat insulation layer is arranged between the template base layer and the template surface layer, a layer of phenolic foam adhesive (2) is uniformly coated between the surfaces of the laminated wood template (1) and the PVC hard board (3) to connect the laminated wood template and the PVC hard board, and the phenolic foam adhesive (2) forms the heat insulation layer.

2. A bare concrete form according to claim 1, characterised in that the glued wooden form (1) is fastened to the PVC-rigid plate (3) by self-tapping screws (4).

3. A bare concrete form according to claim 1, characterised in that the phenolic foam (2) is 0.5-2mm thick.