CN213572519U

CN213572519U - SG composite external template

Info

Publication number: CN213572519U
Application number: CN202021676809.3U
Authority: CN
Inventors: 李学谦
Original assignee: Weihai Shangguan New Building Materials Co ltd
Current assignee: Weihai Shangguan New Building Materials Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-06-29
Anticipated expiration: 2030-08-13

Abstract

The utility model belongs to the technical field of the heat preservation template, especially, relate to compound exterior sheathing of SG, including the heat preservation core, the outside of heat preservation core is provided with fire prevention heat preservation transition layer, the outside of fire prevention heat preservation transition layer is provided with outer inoxidizing coating, the inboard of heat preservation core is provided with interior inoxidizing coating. This patent compound exterior sheathing of SG embeds insulation material, is equivalent to the heat preservation template, the heat preservation template is prefabricated in advance and is accomplished, can regard as insulation material, partial wall body and outside template to use at the construction in-process of heat preservation wall, has saved the process of additionally setting up the template and dismantling, has simplified the construction process of whole heat preservation wall.

Description

SG composite external template

Technical Field

The utility model belongs to the technical field of the heat preservation template, especially, relate to a compound exterior sheathing.

Background

The external templates in the prior art mostly only have a supporting function, a heat insulation system needs to be additionally built in the construction process of the heat insulation wall, the heat insulation material is filled after a base layer wall is selected, then the external templates are built, and then the concrete is poured on site, so that the whole process is complicated, a large amount of manpower and material resources are used, and the construction is complex; in addition, the outer formwork in the prior art needs to be disassembled after concrete pouring is finished, so that construction of the whole heat-insulating wall is troublesome, construction is complex, and construction period is long.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound exterior sheathing, this patent compound exterior sheathing play the exterior sheathing effect of exempting from to tear open and keep warm thermal-insulated effect in cast in situ concrete construction, compound exterior sheathing built-in insulation material, be equivalent to the heat preservation template, the prefabricated completion in advance of heat preservation template can regard as insulation material, partial wall body and outside template to use at the construction in-process of heat preservation wall, saved the process of additionally setting up template and dismantlement, simplified the construction process of whole heat preservation wall.

The utility model adopts the following technical scheme:

the composite external template comprises a heat-insulating core material, wherein a fireproof heat-insulating transition layer is arranged on the outer side of the heat-insulating core material, an external protective layer is arranged on the outer side of the fireproof heat-insulating transition layer, and an internal protective layer is arranged on the inner side of the heat-insulating core material.

Preferably, the inner protective layer and the outer protective layer are both made of cement mortar reinforced by alkali-resistant glass fiber net. The inner protective layer and the outer protective layer have higher strength and play a role in protecting the composite outer template core material.

Preferably, the alkali-resistant glass fiber net comprises a net cloth base cloth woven by glass fibers, and a high-molecular alkali-resistant waterproof coating is coated on the surface of the base cloth.

Preferably, the fireproof heat-insulation transition layer is glue powder polyphenyl particle heat-insulation slurry or expanded and vitrified micro-bead mortar. The flame-retardant fireproof heat-insulating material has the effects of heat insulation and fire prevention, and the combustion performance grade is A grade.

Preferably, the glue powder polyphenyl particle heat-preservation slurry comprises cement, polyphenyl particles, glue powder and short fibers.

Preferably, the interface agent is coated on the inner side and the outer side of the heat insulation core material.

Advantageous effects

The utility model discloses a compound exterior sheathing, this patent compound exterior sheathing play the exterior sheathing effect of exempting from to tear open and keep warm thermal-insulated effect in cast in situ concrete construction, compound exterior sheathing built-in insulation material, be equivalent to the insulation template, the insulation template is prefabricated in advance to be accomplished, can regard as insulation material, partial wall body and outside template to use in the construction process of insulation wall, saved the process of additionally setting up template and dismantlement, simplified the construction process of whole insulation wall, can extensively be applicable to civil construction and industrial building cast in situ concrete shear force wall, roof beam, post, floor heat preservation engineering.

Compound exterior sheathing thermal insulation performance good, and have good shock resistance and anti destruction performance of rolling over, it is inseparable to bond between each layer structure, overall structure stability is strong. The construction is fast, the working period can be shortened, the connection with the main structure is reliable, the construction is safe, and the winter construction is convenient (because the insulation board is arranged at the inner side of the composite external template, the composite external template is equivalent to the insulation external template); is suitable for sticking face bricks on the outer vertical surface of the outer wall; the volume weight, length and thickness can be designed according to the requirement.

Drawings

FIG. 1 is a schematic structural diagram of a composite exterior sheathing according to example 1 of this patent;

FIG. 2 is a schematic structural diagram of the composite exterior sheathing described in example 2 of this patent;

in the figure, 1: a heat-insulating core material; 2: a fireproof heat-preservation transition layer; 3: an outer protective layer; 4: an inner protective layer; 5: alkali-resistant glass fiber web.

Detailed Description

Hereinafter, the present invention will be described in detail. Before the description is made, it should be understood that the terms used in the present specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the utility model appropriately defines the terms for the best explanation. Accordingly, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

The following examples are given by way of illustration of embodiments of the invention and are not intended to limit the invention, and those skilled in the art will appreciate that modifications within the scope of the invention do not depart from the spirit and scope of the invention.

Example 1

As shown in fig. 1, the composite external formwork comprises a heat insulation core material 1, wherein a fireproof heat insulation transition layer 2 is arranged on the outer side of the heat insulation core material, an external protective layer 3 is arranged on the outer side of the fireproof heat insulation transition layer, and an internal protective layer 4 is arranged on the inner side of the heat insulation core material. The inner surface and the outer surface of the heat-insulating core material 1 are coated with an interface agent.

The overall thickness of the composite outer template is 85mm, and the thickness of the heat-insulating core material is 60 mm.

The inner protective layer and the outer protective layer are both made of cement mortar reinforced by alkali-resistant glass fiber net 5. The alkali-resistant glass fiber net comprises a net cloth base cloth woven by glass fibers, and a high-molecular alkali-resistant waterproof coating is coated on the surface of the base cloth. The fireproof heat-preservation transition layer is made of rubber powder polyphenyl particle heat-preservation slurry which comprises cement, polyphenyl particles, rubber powder and short fibers.

The performance index of the composite external template is shown in table 1.

TABLE 1 Performance index of composite exterior forms

As can be seen from table 1, compound exterior sheathing thermal insulation performance good, and have good shock resistance and anti breaking property, it is inseparable to bond between each layer structure, overall structure stability is strong, compound exterior sheathing play exempt from to tear open exterior sheathing effect and heat preservation thermal-insulated effect in cast in situ concrete construction.

The performance index of the heat-insulating core material is in accordance with the specification of table 2.

TABLE 2 Performance index of insulation core

Item	XPS board	SXPS board	SEPS board	EPS board
					Apparent density/(kg/m)³)	25～35	30～40	≥20	≥18
Compressive strength/MPa	≥0.20	≥0.20	≥0.10	≥0.10
					Tensile strength/MPa in the direction perpendicular to the plate surface	≥0.15	≥0.15	≥0.10	≥0.10
Thermal conductivity (25 ℃), W/(m.K)	≤0.030	≤0.026	≤0.033	≤0.039
					Grade of combustion performance	Not lower than B2 grade	Not lower than B2 grade	Not lower than B2 grade	Not lower than B2 grade

The main performance indexes of the rubber powder polyphenyl particle heat-preservation slurry are shown in the table 3.

TABLE 3 Main Performance index of adhesive powder polyphenyl granule insulating slurry

Item	Unit of	Performance index
			Dry apparent density	kg/m³	250-400
Compressive strength	MPa	≥0.30
			Coefficient of softening	-	≥0.50
Coefficient of thermal conductivity	W/(m.k)	≤0.085
			Linear shrinkage rate	％	≤0.3
Tensile bond strength	MPa	≥0.10
			Grade of combustion performance	-	Class A (A2)

Example 2

As shown in fig. 2, the composite external formwork comprises a heat insulation core material, wherein a fireproof heat insulation transition layer is arranged on the outer side of the heat insulation core material, an external protective layer is arranged on the outer side of the fireproof heat insulation transition layer, and an internal protective layer is arranged on the inner side of the heat insulation core material. The inner surface and the outer surface of the heat-insulating core material are coated with an interface agent.

The overall thickness of the composite outer template is 100mm, and the thickness of the heat-insulating core material is 75 mm.

The inner protective layer and the outer protective layer are made of cement mortar reinforced by alkali-resistant glass fiber net. The alkali-resistant glass fiber net comprises a net cloth base cloth woven by glass fibers, and a high-molecular alkali-resistant waterproof coating is coated on the surface of the base cloth. The fireproof heat-insulation transition layer is expanded and vitrified micro-bead mortar.

Preferably, the outer surface of the heat-insulating core material can be provided with a dovetail groove, so that the connection strength between the outer surface of the heat-insulating core material and the fireproof heat-insulating transition layer can be greatly improved.

Preferably, a connecting piece can be further arranged in the composite outer template, and the connecting piece can connect the heat-insulation core material, the fireproof heat-insulation transition layer and the inner and outer protective layers, so that the stability of the whole structure is enhanced. Barbs are arranged on the connecting pieces. The diameter of the connecting piece disc is not less than 50mm, the connecting rod is provided with barbs, and the standard value of the tensile bearing capacity of a single connecting piece is not less than 0.60 kN.

Preferably, the inner surface of the inner protective layer can be provided with a dovetail groove, and when the composite outer formwork is constructed, the dovetail groove arranged on the inner surface of the inner protective layer can be tightly connected with cast-in-place concrete, so that the overall structure of the thermal insulation wall is more stable.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. An SG composite external template is characterized in that: the fireproof heat-preservation composite board comprises a heat-preservation core material, wherein a fireproof heat-preservation transition layer is arranged on the outer side of the heat-preservation core material, an outer protective layer is arranged on the outer side of the fireproof heat-preservation transition layer, and an inner protective layer is arranged on the inner side of the heat-preservation core material; dovetail grooves are formed in the outer surface of the heat-insulation core material and the inner surface of the inner protective layer; the composite external template is characterized in that a connecting piece is arranged in the composite external template, the connecting piece connects the heat-insulation core material, the fireproof heat-insulation transition layer and the internal and external protective layers, and barbs are arranged on the connecting piece.

2. The SG composite exterior sheathing according to claim 1, wherein: the inner protective layer and the outer protective layer are made of cement mortar reinforced by alkali-resistant glass fiber net.

3. An SG composite exterior template according to claim 2, wherein: the alkali-resistant glass fiber net comprises a net cloth base cloth woven by glass fibers, and a high-molecular alkali-resistant waterproof coating is coated on the surface of the base cloth.

4. The SG composite exterior sheathing according to claim 1, wherein: and the inner side and the outer side of the heat-insulating core material are coated with an interface agent.