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External wall grouting and repairing reinforcing method

A repair, reinforcement and grouting technology, applied in building maintenance, construction, building construction, etc., can solve the problems of complex construction, large damage area, and high engineering cost, and achieve the effects of convenient construction, small damage area, and low engineering cost.

Inactive Publication Date: 2018-05-22
JIANGSU NIGAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional repair method, the original insulation system is removed, the construction is complicated, the damage area is large, and the project cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for repairing and reinforcing an exterior wall by grouting, comprising the following steps:

[0022] (1) Drill grouting holes at the cavity of the external wall insulation system, the diameter of the grouting holes is 10cm, and the number of drilling holes is 2 / m 2 , drilled to the surface of the base wall;

[0023] (2) Inject the grouting material into the hole of the grouting hole;

[0024] (3) Before the grouting material is hardened, fill back the thermal insulation structure taken out of the drilled hole, which should be flat and have no obvious splicing height difference;

[0025] (4) Batch scraping flexible anti-cracking mortar, the thickness of the batch scraping flexible anti-cracking mortar is controlled at 2mm, embedded with alkali-resistant glass fiber mesh;

[0026] (5) Apply finishing paint.

[0027] Among them, the grouting material formula is as follows: Portland cement 23%, aluminate cement 2%, Class I fly ash 5%, sand 62.87%, lightweight ag...

Embodiment 2

[0029] A method for repairing and reinforcing an exterior wall by grouting, comprising the following steps:

[0030] (1) Drill grouting holes at the cavity of the external wall insulation system, the diameter of the grouting holes is 15cm, and the number of drilling holes is 4 / m 2 , drilled to the surface of the base wall;

[0031] (2) Inject the grouting material into the hole of the grouting hole;

[0032] (3) Before the grouting material is hardened, fill back the thermal insulation structure taken out of the drilled hole, which should be flat and have no obvious splicing height difference;

[0033] (4) Batch scraping flexible anti-cracking mortar, the thickness of the batch scraping flexible anti-cracking mortar is controlled at 2.5mm, embedded with alkali-resistant glass fiber mesh;

[0034] (5) Apply finishing paint.

[0035] Among them, the grouting material formula is as follows: Portland cement 28%, sulphoaluminate cement 4%, sand 53.4%, lightweight aggregate 8%, e...

Embodiment 3

[0037] A method for repairing and reinforcing an exterior wall by grouting, comprising the following steps:

[0038] (1) Drill grouting holes at the cavity of the external wall insulation system, the diameter of the grouting holes is 20cm, and the number of drilling holes is 6 / m 2 , drilled to the surface of the base wall;

[0039] (2) Inject the grouting material into the hole of the grouting hole;

[0040] (3) Before the grouting material is hardened, fill back the thermal insulation structure taken out of the drilled hole, which should be flat and have no obvious splicing height difference;

[0041] (4) Batch scraping flexible anti-cracking mortar, the thickness of the batch scraping flexible anti-cracking mortar is controlled at 3mm, embedded with alkali-resistant glass fiber mesh;

[0042] (5) Apply finishing paint.

[0043] Among them, the grouting material formula is as follows: Portland cement 18%, Class I fly ash 10%, sand 65.73%, lightweight aggregate 4%, propyl c...

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Abstract

The invention discloses an external wall grouting and repairing reinforcing method. The external wall grouting and repairing reinforcing method comprises the following steps that grouting holes are drilled in a cavity of an external wall external heat insulation system and drilled to the surface of a base wall, a grouting material is injected into the holes of the grouting holes, taken-out heat insulation structures of the drilled holes are filled back before the grouting material is hardened, flatness is achieved, and obvious stitching height difference does not exist; and flexible crack resistant mortar is brushed and scraped, alkali-resistant glass fiber mesh cloth is embedded internally, and finishing paint is coated. According to the method, the practice of eliminating an original insulation system in a traditional repair method is avoided, and the external wall grouting and reinforcing method is convenient to construct, small in damage area and low in construction manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of exterior wall repair, in particular to an exterior wall grouting 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. In the traditional restoration method, the original insulation system is eradicated, the construction is complicated, the damage area is large, and the project cost is high. Contents of the invention [0003] The main techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02C04B28/06
CPCE04G23/0211C04B28/06C04B7/02C04B18/08C04B14/02C04B14/06C04B24/26C04B24/383C04B2103/302
Inventor 郭锋吴开胜邵银存钱中秋赵大军
Owner JIANGSU NIGAO SCI & TECH
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