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Method for concrete structural crack repair

A technology for repairing concrete structures and cracks, which is applied in building maintenance, building construction, construction, etc., can solve problems such as affecting the performance of concrete structures, destroying the original structure of concrete, and impermeability of grout, and achieves quick repair, improves strength, and saves money. The effect of the process

Active Publication Date: 2016-03-30
广东赛力克建筑技术工程有限公司
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Problems solved by technology

In the existing crack repair treatment technology, the general injector grouting method is difficult to control the amount of grout required, and cannot fill large cracks, and the pressure is low, the grout cannot penetrate deep into the cracks, and the cracks cannot be effectively repaired; high pressure The grouting method requires drilling and slotting on the structure, destroying the original concrete structure, affecting the performance of the concrete structure, and affecting the view

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  • Method for concrete structural crack repair

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Embodiment 1

[0024] Such as figure 1 Shown, a kind of concrete structure crack repairing method of the present invention comprises the following steps carried out according to the following sequence:

[0025] S1. Clean the base surfaces on both sides of the crack: Grind and clean the base surface of the concrete structure within the range of 4-10cm from the crack to both sides of the crack, so that the surface of the base surface of the concrete structure is free of laitance and dust;

[0026] S2. Paste the grouting nozzles: paste the grouting nozzles at intervals in the direction of the crack length, the distance between adjacent grouting nozzles shall not exceed 30cm, and the center of the grouting nozzles shall correspond to the cracks; the serial number of the grouting nozzles shall be No. 1 Grouting Nozzle, 2nd Grouting Nozzle, 3rd Grouting Nozzle,,, N-2th Grouting Nozzle, N-1th Grouting Nozzle, Nth Grouting Nozzle, 1st Grouting Nozzle and Nth Grouting Nozzle The nozzles are respecti...

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Abstract

The invention discloses a method for concrete structural crack repair. The method comprises the following steps performed in sequence: clearing basal planes on the two sides of cracks; sticking grouting nozzles, utilizing sealing mortar to seal cracks; after the sealing mortar is solidified, starting to prepare grouting resin; utilizing a grouting machine to sequentially perform grouting from the first grouting nozzle at intervals of one grouting nozzle, when resin flowing out of the N-th grouting nozzle has the same color as the grouting resin prepared in the step S4 and has no bubble, closing the N-th grouting nozzles, and finishing the grouting; and after the grouting resin in cracks is solidified, removing the sealing mortar. The method for concrete structural crack repair has the advantages of saving processes, being simple and convenient to operate and easy to construct, performing grouting fully, performing repair quickly and being low in cost.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a method for repairing cracks in concrete structures. Background technique [0002] Reinforced concrete structure has the characteristics of low price and high quality, convenient construction, large bearing capacity and strong decoration, and is increasingly popular among people. Most fixed buildings use reinforced concrete structure. However, cracks are prone to occur in the process of concrete construction, such as the hardening process. Cracks may occur in the process of use due to concrete shrinkage, settlement, temperature difference and other reasons, which will affect the performance of the building; especially in structural engineering, cracks of different forms and degrees will appear in the process of construction and use, which not only It affects the appearance of the building, and even endangers the normal use of the building and the durability of the structu...

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Application Information

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IPC IPC(8): E04G23/02
CPCE04G23/0203
Inventor 李步恩邱辉元
Owner 广东赛力克建筑技术工程有限公司