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A kind of prefabricated sandwich wall panel using loose thermal insulation material and its manufacturing process

A technology of thermal insulation materials and sandwich walls, applied in the direction of thermal insulation, manufacturing tools, walls, etc., can solve the problems of poor thermal insulation effect, poor fire resistance, poor integrity, etc., to improve thermal insulation efficiency, enhance integrity, reduce quality and cost effect

Active Publication Date: 2021-11-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problems of poor thermal insulation effect, poor fire resistance and poor integrity of existing sandwich wallboards, and provides a prefabricated sandwich wallboard using loose thermal insulation materials and its manufacturing process. The wallboard changes the internal structure and The production process optimizes the stress mode of the sandwich wallboard, which has the advantages of light weight, good integrity, high thermal insulation efficiency, strong fire resistance, durability and good economic benefits

Method used

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  • A kind of prefabricated sandwich wall panel using loose thermal insulation material and its manufacturing process
  • A kind of prefabricated sandwich wall panel using loose thermal insulation material and its manufacturing process
  • A kind of prefabricated sandwich wall panel using loose thermal insulation material and its manufacturing process

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specific Embodiment approach 1

[0031] Specific implementation mode 1: This implementation mode records a prefabricated sandwich wall panel using loose thermal insulation materials, such as figure 1 As shown, the sandwich wall panel includes an inner leaf concrete slab 1, an outer leaf concrete slab 2, a cross-shaped web 3 and an insulation layer 4;

[0032] The opposite surfaces of one side of the inner leaf concrete slab 1 and the outer leaf concrete slab 2 are provided with vertically and horizontally intersecting grooves one 5, and the area surrounded by the groove one 5 includes a plurality of array units, and each array unit Contains a cross-shaped plane 6, and the area other than the cross-shaped plane in each array unit is provided with a plurality of blind holes 7 in an array, such as figure 2 shown;

[0033] The cross-shaped web 3 is composed of four rectangular plates 8 intersecting in a cross shape, each intersection of two adjacent rectangular plates 8 has a chamfer, and the middle part of the...

specific Embodiment approach 2

[0036] Specific embodiment two: a prefabricated sandwich wall panel using loose thermal insulation materials described in specific embodiment one, the inner leaf concrete slab 1, the outer leaf concrete slab 2 and the cross-shaped web 3 are all reinforced by fiber braided mesh High-performance concrete is made by integral pouring and one-time molding, and has excellent integrity.

specific Embodiment approach 3

[0037] Specific embodiment three: a manufacturing process of prefabricated sandwich wall panels using loose thermal insulation materials described in specific embodiment one or two, the process steps are as follows:

[0038] Step 1: Fabrication of the insulation layer: use the mold to prepare the foam flat plate 11 and the foam web 10, splice the foam flat plate 11 and the foam web 10 on one side into one, and fill the loose insulation material into the void formed by the foam web 10 In the cavity 15, the other side of the foam plate 11 is spliced, and the FRP material is coated on the outer surface of the foam plate 11 and the foam web 10 by using a vacuum forming process. After the FRP shell is cured for 24 hours, the insulation layer 4 is completed; the FRP material Composed of resin and fiber, after the resin is cured, FRP is formed;

[0039] Step 2: Lay the fiber braided net on both sides of the insulation layer 4 and in the channel reserved to accommodate the cross-shape...

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Abstract

The invention relates to a prefabricated sandwich wall panel utilizing loose heat insulating materials and a manufacturing process thereof, belonging to the technical field of building energy-saving materials. The invention aims at the problems of poor thermal insulation effect and poor fire resistance of the sandwich wallboard, changes the internal structure and manufacturing process, optimizes the stress mode of the sandwich wallboard, and has the advantages of light weight, good integrity, high thermal insulation efficiency, It has the advantages of strong fire resistance, durability and good economic benefits. Splice one side of the foam plate and the foam web into one, fill the loose insulation material in the cavity formed by the foam web, splice the other side of the foam plate, and wrap the FRP material on the outer surface of the foam plate and the foam web After the FRP shell is solidified, the fiber braided mesh is laid on both sides of the insulation layer and in the channel reserved to accommodate the cross-shaped web, and the foam web and the fiber braided mesh in the two foam flat plates are connected as one by sewing technology , impregnated with epoxy resin, then poured high-performance concrete, and removed the formwork after 14 days of curing.

Description

technical field [0001] The invention belongs to the technical field of energy-saving materials for building construction, and in particular relates to a prefabricated sandwich wall panel using loose heat-insulating materials and a manufacturing process thereof. Background technique [0002] With the country's emphasis on energy conservation and emission reduction, a series of innovations have emerged in all walks of life. In the field of building energy conservation, various types of prefabricated thermal insulation wall panels have been rapidly developed and widely used in various buildings. Whether it is a prefabricated building or a cast-in-place building, insulating wall panels with light weight, high thermal insulation efficiency, good integrity, and strong fire resistance have become an important development trend. [0003] At present, the commonly used prefabricated insulation wall panels are divided into three types: internal insulation, external insulation and sand...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B2/00E04B2/74E04B1/80B28B1/16
CPCB28B1/16E04B1/80E04B2/00E04B2/7403
Inventor 肖会刚董宪章刘敏
Owner HARBIN INST OF TECH
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