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Dry-hanging external wall repair and reinforcement method

A repair and reinforcement, dry-hanging technology, applied in building maintenance, construction, building construction, etc., can solve the problems of complicated construction, water accumulation, leakage, etc., and achieve the effect of convenient construction and high safety.

Active Publication Date: 2020-09-11
JIANGSU NIGAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current repair method removes a large area of ​​the original building’s facade, and the construction is cumbersome. After a certain number of years, the repaired building has the problems of water accumulation and leakage that are prone to occur in the cavity system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for repairing and reinforcing a dry-hanging exterior wall, comprising the following steps:

[0022] (1) Lay light steel keel on the outer wall of the original building, and the light steel keel is anchored to the base wall with anchor bolts;

[0023] (2) Lay boards layer by layer on the light steel keel from bottom to top, with a width of 1cm between the boards, and seal them with silicone sealant;

[0024] (3) After the laying of a layer of board is completed, grout is injected into the cavity between the board and the base wall, and the next layer is laid after the cavity is filled.

[0025] Wherein, the board is a cement fiber board decorative board, the grouting material is special grouting mortar, and the special grouting mortar includes the following raw materials by weight: Portland cement 28%, Class I fly ash 10% %, sand 47.4%, lightweight aggregate 8%, methyl cellulose ether water retaining agent 0.1%, naphthalene superplasticizer 1%, acrylic latex po...

Embodiment 2

[0027] A method for repairing and reinforcing a dry-hanging exterior wall, comprising the following steps:

[0028] (1) Lay light steel keel on the outer wall of the original building, and the light steel keel is anchored to the base wall with anchor bolts;

[0029] (2) Lay boards layer by layer on the light steel keel from bottom to top, with a width of 1.5cm between the boards, and seal them with silicone sealant;

[0030] (3) After the laying of a layer of board is completed, grout is injected into the cavity between the board and the base wall, and the next layer is laid after the cavity is filled.

[0031] Wherein, the board is an integrated board for thermal insulation and decoration, the thermal insulation layer of the integrated board for thermal insulation and decoration is a modified polystyrene board, and the decorative layer is an aluminum board with a decorative finish; the grouting material is specially used for grouting Mortar, the special grouting mortar inclu...

Embodiment 3

[0033] A method for repairing and reinforcing a dry-hanging exterior wall, comprising the following steps:

[0034] (1) Lay light steel keel on the outer wall of the original building, and the light steel keel is anchored to the base wall with anchor bolts;

[0035] (2) Lay boards layer by layer on the light steel keel from bottom to top, with a gap width of 1.2cm, and seal with silicone sealant;

[0036] (3) After the laying of a layer of board is completed, grout is injected into the cavity between the board and the base wall, and the next layer is laid after the cavity is filled.

[0037] Wherein, the board is an integrated thermal insulation and decoration board, and the thermal insulation layer in the thermal insulation and decoration integrated board is an EPS board, and the facing layer is an aluminum board with a facing; the grouting material is a special grouting mortar, The special grouting mortar includes the following raw materials by weight: Portland cement 23%, ...

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Abstract

The invention discloses a dry-hung external wall repairing and reinforcing method. The dry-hung external wall repairing and reinforcing method comprises the following steps that keels are paved on anexternal wall of an original building, and the keels are anchored on a base layer wall by using anchor bolts; plates are paved on the keels from bottom to top layer by layer, the width of each plate seam is 1-1.5 cm, and the plate seams are sealed with a silicone sealant; and after one layer of plate is paved, slurry is poured into cavities of the plates and the base layer wall, and after the cavities are full of the slurry, paving of a next layer is conducted. According to the dry-hung external wall repairing and reinforcing method, the external facade of the original building does not need to be shoveled off in a large area mode, construction is convenient, the dry-hung external wall repairing and reinforcing method is especially suitable for renovation of an existing building, and meanwhile, and the problems that water accumulation and leakage of a cavity system are prone to happening after the building is used for a certain year are avoided.

Description

technical field [0001] The invention relates to the technical field of exterior wall repair, in particular to a dry-hanging exterior wall repair and reinforcement method. Background technique [0002] The exterior wall of a building has the functions of bearing a certain load, sheltering from wind and rain, heat insulation, noise prevention, and fire safety, and is an important part of the wall structure. At present, the exterior walls of buildings are mostly made of concrete blocks, sintered bricks and other blocks, and during the construction process, external insulation materials are required. At present, the leakage of building exterior walls has become a common problem in the quality of construction projects, known as the "cancer" of construction. The current repair method removes a large area of ​​the original building facade, and the construction is cumbersome. After a certain number of years of use, the repaired building has the problems of water accumulation and le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02C04B28/04C04B28/06C04B111/70
CPCC04B28/04C04B28/06C04B2111/70E04G23/0218C04B18/08C04B14/06C04B18/027C04B24/383C04B2103/302C04B24/2611C04B2103/0085C04B7/02C04B24/2623C04B24/2641
Inventor 郭锋钱中秋赵大军吴开胜
Owner JIANGSU NIGAO SCI & TECH