CN101476368A - Multifunctional composite hollow slab and its use as building material - Google Patents

Abstract

The invention discloses a multifunctional composite hollow plate and its application as a building material, belonging to the field of building materials. It is composed of upper and lower panels and a core board located therein. There is an air layer between the upper and lower panels and the core board in the middle, and the panel and the core board are assembled with wooden keels. The multi-functional composite hollow panel has multi-functional use characteristics. It can be used as the inner and outer wall panels of the building envelope, and can also be used as the floor panel of the floor structure; it can also be used as the roof panel of the roof structure. And it can be used in combination with shaped doors and windows. The invention can replace steel and cement boards, saving a lot of energy and raw materials. At the same time, the total weight of the building is greatly reduced, which is beneficial to reducing the static load of the building, simplifying the structure, and saving investment and materials.

Description

A kind of multifunctional composite hollow board and its application as building material

technical field

The present invention relates to a kind of inner and outer wall panels of various types of low-rise civil buildings, more specifically, a panel used as a floor panel of a floor structure and a roof panel of a roof structure, and an enclosure wall structure of a multi-storey building or a high-rise building. Multifunctional composite hollow panel material.

Background technique

After the Wenchuan Earthquake in 2008, the guidelines issued by the Ministry of Construction recommended that color steel plates be used as building materials for one-story resettlement houses. There are many problems. Thinking about the earthquake, the current house construction uses a lot of steel and cement, which consumes a lot of energy and resources, destroys mountains, damages the environment, and produces a lot of construction waste and dust, causing air pollution. How to change this construction mode, Reduce the amount of steel and cement used in the construction industry and replace them with renewable, fast, natural raw materials and use of crop waste as basic raw materials for building materials, and use these zero-energy natural raw materials to build houses through factory-produced building components , in order to create a new building panel new product that is more in line with sustainable development.

Utility model patent CN2444014 discloses a wheat straw lightweight wall material board covered by gypsum board. The utility model is a wheat straw light-weight wall material board covered with gypsum board, which is provided with gypsum boards on the two outer surfaces of the wheat straw board, and several sleeves are installed inside the wheat straw board, and each sleeve is threaded. Corresponding to the screw, it is convenient for the screw to be screwed into the casing, so that the gypsum board or cement board and the wheat straw board are fixed together. The main performance is good heat preservation and heat insulation; the surface is waterproof and flame retardant; the price is comparable to that of clay brick walls with similar surfaces. The cement-faced wall is similar, with a density of 0.5-0.8g/cm ³ and a thermal conductivity of 0.20-0.40w/mk. It is a good light-weight wall material.

The material invented by this utility model can only be used as body of wall due to the problem of strength, and cannot be used for floor structure floor panels.

Contents of the invention

1. The technical problem to be solved by the invention

A large number of steel and cement are used in the current housing construction, which consumes a lot of energy and resources, damages the environment and produces a large amount of construction waste and dust, causing air pollution, and the strength of the light wall material panels disclosed cannot meet the requirements of building houses. basic requirements. The multifunctional composite hollow plate provided by the invention can be used not only as a wall, but also as a floor plate of a floor structure and a roof plate of a roof structure.

2. Contents of the invention

Technical scheme of the present invention is as follows:

The utility model relates to a multi-functional composite hollow panel, which is composed of upper and lower panels and a core panel located therein. There is an air layer between the upper and lower panels and the middle core panel, and wooden keels are used to assemble between the panel and the core panel.

The above-mentioned panels are boards with fire-proof and flame-retardant functions after treatment, such as multi-layer plywood, oriented strand board, cement pressure board, anti-corrosion wood or carbonized wood.

The above-mentioned core board is a porous lightweight board with thermal insulation and sound insulation functions, and is a straw board, a hollow particle board, a honeycomb board or a mineral wool board.

The raw materials used in the multi-functional composite hollow board are natural materials produced with little energy consumption, that is, regenerated and fast natural growth trees and artificial boards processed from waste, that is, waste utilization. The selected wooden or non-wood-based panels use formaldehyde-free adhesives.

The multi-functional composite hollow panels are produced in a factory to achieve standardization, modularization and standardization.

The multi-functional composite hollow panel has multi-functional use characteristics. It can be used as the inner and outer wall panels of the building envelope, and can also be used as the floor panel of the floor structure; it can also be used as the roof panel of the roof structure. And it can be used in combination with shaped doors and windows. As an external wall panel and roof panel, the outer surface of the panel can be treated accordingly, which can be waterproof, moisture-proof and fireproof; it also has the performance of heat insulation, heat preservation and sound insulation.

3. Beneficial effect

The invention provides a multi-functional composite hollow board, which can be used as the main enclosure inner and outer wall boards, floor boards of floor structures and roof boards of roof structures in low-rise civil buildings (residential buildings, public buildings), and can replace steel and Cement boards save a lot of energy and raw materials. At the same time, the total weight of the building is greatly reduced, which is beneficial to reducing the static load of the building, simplifying the structure, and saving investment and materials. When the present invention is used as the main wallboard material for house renovation and renewal, it has light load, easy transportation and installation, no wet work is required, no noise, no harmful gas, no construction waste during installation, and civilized cleaning can be realized construction.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention: 1, panel 2, air layer 3, core board 4, air layer 5, panel 6, wooden keel 7, backing strip.

FIG. 2 is an enlarged cross-sectional view of FIG. 1 .

Detailed ways

Further illustrate the present invention below in conjunction with accompanying drawing.

The multi-functional composite hollow board is composed of wood and non-wood wood-based panels through wooden grids, that is, it is composed of double-sided multi-layer plywood (panel) and straw board, and has an air layer inside. After a certain treatment on the surface of the board, it can have the performance of waterproof, moisture-proof and fire prevention; at the same time, it also has the functions of heat preservation, heat insulation and sound insulation. The roof panel of the roof structure; due to its sufficient strength, it can also be used as a floor panel of the floor structure, and can be used in combination with shaped doors and windows.

The board series are all produced in the factory to achieve standardization, scale and batch production. The standard multi-functional composite hollow panel panel is made of renewable fast-growing poplar wood with a size of 1220×2440 man-made panels. The panels of different sizes have a certain formwork ratio relationship with the standard specifications. The minimum modulus is 305 mm, in order to achieve the goal of "zero consumables" in the production process of the board, and save resources to the greatest extent. Formaldehyde-free phenolic glue is used in the board. The outer panel 1 of the outer wall panel and the roof panel is made of 10mm thick seven-layer poplar plywood, and the inner panel 2 is made of 4mm thick three-layer board. 4mm thick three-layer panels are used on both sides of the interior wall panels to save cost. Because the floor structure needs better strength, both sides are made of seven-layer boards with a thickness of 10mm. In the middle of all the boards, 25mm thick straw boards (core boards) 3 are placed, between the upper and lower multi-layer plywood panels 1, 5 and the middle straw board core boards are air layers 2, 4, and between the panels and the core boards are wooden boards. The keels 6 are assembled, and the backing strips 7 are located between the straw board (core board) 3 and the multi-layer plywood panels 1,5. The outside of the wall and the surface of the roof are covered with impregnated paper, which has the functions of fireproofing, waterproofing and moistureproofing. The basic materials of all boards are natural materials, which have no pollution to the living environment and natural environment, and are absolutely healthy and environmentally friendly.

It can be used multi-functionally in the inner and outer wall panels of the building envelope, and can also be used as the roof panel of the roof structure; due to its sufficient strength, it can also be used as the floor panel of the floor structure.

The thickness of the multifunctional composite hollow board can be flexibly designed according to the needs, and the thickness is generally 80, 90 or 100. The board is light in weight and can be carried by two people, which is convenient for transportation and installation. The electric wires in the multi-functional composite core board can freely pass through the joints of the vertical and horizontal boards, and the upper and lower water pipes can also be arranged to pass through without opening additional holes; the multi-functional composite hollow board has a wooden grille, which is convenient for installing pendants It can be redecorated indoors and outdoors. It is easy to assemble and disassemble, and it is also convenient for renovation and renewal.

The multi-layer plywood in this embodiment can also be replaced by oriented strand board, cement pressure board, anti-corrosion wood or carbonized wood. Straw boards can be replaced with hollow particle boards, honeycomb boards or mineral wool boards. All of them can meet the strength requirements of the inner and outer wall panels or the roof panels of the roof structure and the floor panels of the floor structure.

Claims (8)

1. A multifunctional composite hollow panel is characterized in that it is composed of upper and lower panels and a core panel located therein, an air layer is formed between the upper and lower panels and the core panel in the middle, and wooden keels are used to assemble between the panel and the core panel. become. 2. A multi-functional composite hollow panel according to claim 1, characterized in that the panel is a panel with a fire-proof and flame-retardant function after treatment. 3. A multi-functional composite hollow panel according to claim 1 or 2, characterized in that the panel is multi-layer plywood, oriented strand board, cement pressure board, anti-corrosion wood or carbonized wood. 4. A multi-functional composite hollow panel according to claim 1, characterized in that the core panel is a porous lightweight panel with thermal insulation and sound insulation functions. 5. A multifunctional composite hollow board according to claim 1 or 4, characterized in that the core board is straw board, hollow particle board, honeycomb board or mineral wool board. 6. The multifunctional composite hollow panel according to claim 1, 2 or 4, characterized in that the raw material used is a wood-based panel produced from rapidly regenerated trees or wastes of agricultural crops. 7. The multifunctional composite hollow board according to claim 1, 2 or 4, characterized in that the adhesive used for the board has no formaldehyde emission. 8. according to the purposes of claim 1 or 2 or 4 described multifunctional composite hollow panels as building materials, it is characterized in that the multifunctional composite hollow panels are used as the inner and outer wall panels of building envelopes, the roof panels of roof structures or The floor slab of the floor structure.

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