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Assembly type prefabricated sandwich thermal-insulation outer wall vertical abutted seam waterproof structure and implementation method

A technology for thermal insulation of external walls and waterproof structures, applied to building thermal insulation materials, walls, building components, etc., can solve problems such as hidden dangers, water seepage at seams, and greater impact on the operating environment, achieving excellent results, enhancing overall strength, The effect of excellent waterproof barrier effect

Active Publication Date: 2019-12-24
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When installing the prefabricated exterior wall of the prefabricated structure, 20mm joints are reserved between the walls. It is difficult to deal with the subsequent joints. The current treatment method is to inject construction glue into the joints. This method is greatly affected by the working environment, such as humidity , temperature, etc., it is likely to cause water seepage at the joints, causing hidden dangers

Method used

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  • Assembly type prefabricated sandwich thermal-insulation outer wall vertical abutted seam waterproof structure and implementation method
  • Assembly type prefabricated sandwich thermal-insulation outer wall vertical abutted seam waterproof structure and implementation method
  • Assembly type prefabricated sandwich thermal-insulation outer wall vertical abutted seam waterproof structure and implementation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1 to Figure 3 As shown, the waterproof structure includes a prefabricated exterior wall panel 1, a cast-in-place exterior wall panel 2, and a horizontal seam 3 reserved between the prefabricated exterior wall panel 1 and the cast-in-place exterior wall panel 2, and the prefabricated exterior wall panel 1 Including the integrally connected first PCF exterior wall template 11 and prefabricated concrete slab 12, the cast-in-place exterior wall panel 2 includes the integrally connected second PCF exterior wall template 21 and cast-in-place concrete 22, the first PCF exterior wall template 11 and the second The PCF exterior wall formwork 21 is spliced, the prefabricated concrete slab 12 and the cast-in-place concrete 22 are spliced ​​through the corrugated surface, and the first PCF exterior wall formwork 11 and the second PCF exterior wall formwork 21 include the insulation layer 4 and the backing material sequentially from the inside to the outside 5 and th...

Embodiment 2

[0035] Such as Figure 4 As shown, the difference from Embodiment 1 is that the horizontal drainage cavity 31 is a stepped structure gradually increasing from the outside to the inside, and the concealed backing 81 is arranged on the lowest surface of the stepped structure, and the waterproof component 82 is located on the highest surface, thereby achieving high efficiency. Waterproof structure.

Embodiment 3

[0037] Such as Figure 1 to Figure 4 Shown, the implementation method of this waterproof structure comprises the following steps:

[0038] Step 1, install the second PCF exterior wall formwork 21 of the prefabricated exterior wall panel 1 and the cast-in-place exterior wall panel 2 and the interior wall support formwork and calibrate the verticality;

[0039] Step 2, grinding the joint of the prefabricated concrete slab 12 and the cast-in-place concrete 22 into a corrugated surface;

[0040] Step 3: Fill the polyethylene foam strip 821 of the waterproof assembly 82 of the same material and equal thickness between the insulation boards on the first PCF exterior wall formwork 11 and the second PCF exterior wall formwork 21, prefabricated concrete slab 12 and cast-in-place concrete The joint surface of 22 is covered with self-adhesive butyl tape 822. The self-adhesive butyl tape 822 is bonded to both sides of the joint of precast concrete slab 12 and cast-in-place concrete 22 wi...

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Abstract

The invention discloses an assembly type prefabricated sandwich thermal-insulation outer wall vertical abutted seam waterproof structure and an implementation method, and belongs to the technical field of abutted seam waterproof treatment. The waterproof structure comprises a prefabricated outer wall board, a cast-in-place outer wall board and a reserved horizontal abutted seam; the prefabricatedouter wall board comprises a first PCF outer wall formwork and a precast concrete slab; the cast-in-place outer wall board comprises a second PCF outer wall formwork and cast-in-place concrete; the first PCF outer wall formwork and the second PCF outer wall formwork are jointed; the precast concrete slab and the cast-in-place concrete are jointed through a corrugated surface; each of the first PCFouter wall formwork and the second PCF outer wall formwork comprises a thermal-insulation layer, a backing material and a weather-resistant building sealing layer; vertical water drainage cavities are formed between the thermal-insulation layers and the backing materials; upwards-inclined water stop plates are arranged on the backing materials and are fixedly connected with the thermal-insulationlayers; water guiding pipes are arranged on the water stop plates; the horizontal abutted seam comprises a horizontal water drainage cavity; and two layers of waterproof units are arranged in the horizontal water drainage cavity from outside to inside. Multi-stage water resistance is adopted, so that the efficient waterproof effect is realized, and construction is facilitated.

Description

technical field [0001] The invention belongs to the technical field of seam waterproofing treatment, and in particular relates to a vertical seam waterproof structure and an implementation method of an assembled prefabricated sandwich thermal insulation outer wall. Background technique [0002] Assembled structure means that the components are industrially produced in the factory and transported to the site for direct assembly. The components are produced in a standardized manner in the factory to achieve standardized quality, which is conducive to on-site dust and noise reduction, reduces solid waste generation, reduces on-site staffing, reduces turnover material allocation, and achieves on-site green construction. The prefabricated components of the external wall have their own insulation layer, and the construction of the main building does not require traditional external scaffolding. Compared with the traditional cast-in-place structure, it is more convenient and fast, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/66E04B2/00
CPCE04B1/665E04B2/00
Inventor 王波陈健
Owner CHINA MCC17 GRP
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