Green low-carbon cementitious material-based fiber protection plate

Abstract

The utility model discloses a green low carbon cementitious material based fiber protection plate, including heat preservation layer, woven net rack and insert wire, woven net rack is provided on the both sides of heat preservation layer, insert wire is provided in the heat preservation layer in the inclined direction, and the upper end portion of insert wire passes through the heat preservation layer and abuts against woven net rack, the outside of woven net rack is provided with a cementitious protection layer. Compared with the prior art, the green low-carbon binding material-based fiber protection plate has the advantages that the green low-carbon binding material-based fiber protection plate is convenient to construct and use, can be prefabricated and cast in place, and is good in protection property.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete sandwich thermal insulation wall panels, in particular to a green low-carbon cementitious material-based fiber protective board. Background Art

[0002] Traditional concrete sandwich insulation wall panels and concrete polystyrene insulation structure integrated panels both require on-site pouring of concrete, which makes construction inconvenient. In addition, surface water loss during maintenance can easily lead to concrete cracking, which not only affects the durability and appearance of cement concrete products, but also causes cracks of different characteristics in concrete wall panels. The fireproof board of the composite polystyrene insulation structure integrated board can be installed and used on-site, but its fire protection board has a combustion grade of A2, which limits its use in certain public areas.

[0003] In order to reduce cracks and increase strength, fibers or prefabricated steel grids are usually added to concrete to reduce the development of cracks. After adding fibers, the fluidity of concrete decreases, and the fibers are unevenly dispersed, resulting in serious chipping and breaking during the construction process. The production and use of cement also poses great harm to the environment. Concrete sandwich insulation wall panels do not meet the current requirements of the green and environmentally friendly era.

[0004] The present application aims to provide a green and low-carbon cementitious material-based fiber fire protection board, which is used to replace the perlite board of the perlite lightweight composite insulation board system for passive ultra-low energy consumption buildings, and can also be used as a fireproof board for steel structures and a partition board for decorative projects. Utility Model Content

[0005] 1. Problems to be solved

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a green low-carbon cementitious material-based fiber protective plate which is convenient for construction and use, can be prefabricated and can also be cast on site and has good protective properties.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the technical solution provided by the utility model is: a green and low-carbon cementitious material-based fiber protective plate, comprising a thermal insulation layer, a woven mesh frame and an inserted wire, the woven mesh frame is arranged on both sides of the thermal insulation layer, the inserted wire is obliquely arranged in the thermal insulation layer and the upper end portion passes through the thermal insulation layer and abuts against the woven mesh frame, and a cementitious protective layer is provided on the outside of the woven mesh frame.

[0009] As an improvement, the thermal insulation layer is a polyurethane thermal insulation board.

[0010] As an improvement, the woven mesh is a three-dimensional woven fiber mesh.

[0011] As an improvement, the thickness of the thermal insulation layer is 200mm-250mm, and the thickness of the woven grid is 50mm.

[0012] (III) Beneficial effects

[0013] The advantages of the utility model compared with the prior art are:

[0014] In this application, a cementitious protective layer is provided, so that the overall strength is better than conventional protective layers such as gypsum board, ALC aerated board, concrete, etc. sold on the market. The construction is convenient, which is not only green and environmentally friendly, but also has a lower cost than concrete. When used with an insulation layer and a woven grid, the overall strength is high and it will not be damaged after construction and during transportation. The material is low-carbon and environmentally friendly, and the price is low and it is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a green and low-carbon cementitious material-based fiber protective plate.

[0016] Figure 2 It is a structural schematic diagram of a green and low-carbon cementitious material-based fiber protective plate when in use.

[0017] As shown in the figure: 1. Insulation layer; 2. Woven mesh; 3. Wire insertion; 4. Gelatin protective layer. DETAILED DESCRIPTION

[0018] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0019] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0020] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0023] Please refer to the attached Figure 1-2 A green low-carbon cementitious material-based fiber protective board comprises a thermal insulation layer 1, a woven grid 2 and an inserted wire 3, wherein the woven grid 2 is arranged on both sides of the thermal insulation layer 1, the inserted wire 3 is obliquely arranged in the thermal insulation layer 1 and the upper end thereof penetrates the thermal insulation layer 1 and abuts against the woven grid 2, a cementitious protective layer 4 is arranged on the outside of the woven grid 2, wherein the thermal insulation layer 1 is a polyurethane thermal insulation board, the woven grid 2 is a three-dimensional woven fiber grid, the thermal insulation layer 1 is 200mm-250mm thick, and the woven grid 2 is 50mm thick.

[0024] In one embodiment

[0025] Green low-carbon cementitious material based fiber foam board

[0026] Step 1: Mix 7 parts of mineral powder, 3 parts of fly ash and 1 part of foaming agent in a mixer.

[0027] Step 2: Dissolve 1 part of sodium silicate nonahydrate in water, add the prepared solution and water reducer into the powder, and continue stirring for 2 minutes.

[0028] Step 3: Pour part of the evenly mixed concrete slurry into the mold, then put in the fiber grid to increase its strength, and then pour the remaining concrete slurry in. Put the test mold into the autoclave curing box for curing for 8 hours and then remove the mold to obtain a green low-carbon cementitious material-based fiber foam board.

[0029] The density of the green low-carbon cementitious material-based fiber foam board is 537Kg / m 3 , thermal conductivity 0.956W / (m·k), combustion grade A.

[0030] According to the energy-saving design standards for civil buildings, a composite board with a solid waste-based foam board + rigid polyurethane insulation structure integrated composite board is designed, with a total thickness of 250 to 300 mm. A 200-250 thick polyurethane insulation board and a 50mm thick solid waste-based fiber grid protective layer are selected. This solution has good overall insulation effect and low weight for the wall panels. The oblique wire insertion process is used in the rigid polyurethane foam board, and the fiber grid is fixed on the oblique wire insertion. The oblique wire insertion not only enhances the connectivity between the insulation layer and the protective layer, but also does not form a thermal bridge. The oblique wire insertions on the two boards are connected together by electric welding, and the green and low-carbon cementitious material slurry of the building is used to ensure the stable connection between the wall panels.

[0031] In one embodiment

[0032] Step 1: Mix 7 parts of mineral powder, 3 parts of fly ash and 1 part of perlite in a blender.

[0033] Step 2: Dissolve 1 part of sodium silicate nonahydrate in water, add the prepared solution and water reducer into the powder, and continue stirring for 2 minutes.

[0034] Step 3: Pour part of the evenly mixed concrete slurry into the mold, then put in the fiber grid to increase its strength, and then pour the remaining concrete slurry in. After curing the test mold for 24 hours, remove the mold to obtain a green low-carbon cementitious material-based fiber protection board.

[0035] The density of the green low-carbon cementitious material-based fiber protection board is 1400Kg / m 3 , thermal conductivity 0.1214W / (m·k), combustion grade A.

[0036] According to the energy-saving design standards for civil buildings, a composite board with a solid waste-based protective board + a rigid polyurethane insulation structure integrated composite board is designed, with a total thickness of 250 to 300 mm. 200-250 thick polyurethane insulation board and 50mm thick solid waste-based fiber grid protection layer board are selected. The overall cost of this solution is low and the strength of the protection board is high. The oblique wire insertion process is used in the rigid polyurethane foam board, and the fiber grid is fixed on the oblique wire. The oblique wire insertion not only enhances the connectivity between the insulation layer and the protective layer, but also does not form a thermal bridge. The oblique wires on the two boards are connected together by electric welding, and then the green low-carbon cementitious material slurry is poured to ensure the stable connection between the wall panels. This solution can not only be prefabricated in the factory, but also can be realized on-site construction.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0039] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A green low-carbon cementitious material-based fiber protective plate, characterized by: The invention comprises a thermal insulation layer (1), a woven mesh frame (2) and an inserted wire (3), wherein the woven mesh frame (2) is arranged on both sides of the thermal insulation layer (1), the inserted wire (3) is obliquely arranged in the thermal insulation layer (1) and the upper end thereof penetrates the thermal insulation layer (1) and abuts against the woven mesh frame (2), and a gelling protective layer (4) is arranged on the outside of the woven mesh frame (2).

2. The green low-carbon cementitious material-based fiber protective plate according to claim 1, characterized in that: The thermal insulation layer (1) is a polyurethane thermal insulation board.

3. The green low-carbon cementitious material-based fiber protective plate according to claim 1, characterized in that: The woven mesh frame (2) is a three-dimensional woven fiber mesh frame.

4. The green low-carbon cementitious material-based fiber protective plate according to claim 1, characterized in that: The thickness of the thermal insulation layer (1) is 200 mm-250 mm, and the thickness of the woven mesh frame (2) is 50 mm.

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