Pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and method based on magnetic force

An end-guiding, magnetic attraction technology, applied in the field of building crack repair, can solve the problems of poor fit of crack repair and long curing time, and achieve the effects of improving filling rate, complete and fast repair, and sufficient crack repair

Inactive Publication Date: 2021-08-13
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The repair of these cracks is often a long-term reciprocating large-scale project. The mortar used in ordinary pouring takes a long time to harden, and the fit of crack repair is not high, so the service life after repair will not be long.

Method used

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  • Pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and method based on magnetic force
  • Pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and method based on magnetic force
  • Pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and method based on magnetic force

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] see Figure 1-4 A pre-embedded and prefabricated magnetic attraction-end-guided device for repairing cracks in buildings based on magnetic force, which includes a steel bar 1.1 pre-buried inside a reinforced concrete beam body 1, said steel bar 1.1 is wound with a tinned copper wire 2, said The tinned copper wire 2 passes through the reserved wire interface 3 preset on the reinforced concrete beam body 1, and is connected with the electromagnetic induction device for supplying electric current; There is an introduction hole 18, and the introduction hole 18 is connected with a high-pressure jet grouting machine 19 through a grouting pipe 20, and then injects magnetic mortar 12 into the crack. By adopting the above-mentioned device, it can be used for the repair of internal cracks of different types of buildings, and the filling of cracks can be realized by using the cooperation between the magnetic mortar 12 and a variety of different types of magnetic attraction ends, s...

Embodiment 2

[0070] The method for repairing cracks by using the magnetic-based pre-embedded and prefabricated magnetic attraction end-guided device for repairing cracks in buildings includes the following steps:

[0071] When the object to be repaired is a reinforced concrete beam body 1, the construction method of placing embedded electromagnetic coils is adopted, which specifically includes the following steps:

[0072] Step 1.1: According to the accumulation of experience in a large number of actual situations, before pouring the beam, use tinned copper wire 2 to wrap in parallel on the embedded steel bar 1.1, and control the number of winding turns according to the situation, and then pour the reinforced concrete beam body according to the normal process 1;

[0073] Step1.2: After the pouring of the reinforced concrete beam body 1 is completed, the reserved wire interface 3 is set outside for use, and the oxidation prevention treatment of the reserved wires should be done well, and at...

Embodiment 3

[0080] When the object to be repaired is the 15 leaky parts on the bathroom floor, the construction method of placing the pre-embedded permanent magnet net is adopted, which specifically includes the following steps:

[0081] Step2.1: During the ground construction process of the toilet, when making the ground leveling layer, pre-embed the permanent magnet net 17;

[0082] Step2.2: Due to the large amount of water infiltration in the bathroom, and the waterproofness of the waterproof layer is limited, under the effect of water intrusion for a long time, the properties of the concrete will be destroyed, and cracks will appear on the bathroom floor;

[0083] Step2.3: Use a small drill bit drill to drill the elongated lead hole 18 at the position where the crack occurs to inject the magnetic mortar 12;

[0084] Step2.4: Prepare the required magnetic mortar, inject the magnetic mortar along the slender lead hole with a high-pressure jet grouting machine, and under the magnetic att...

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Abstract

The invention provides a pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and a method based on magnetic force. The device comprises a steel bar pre-embedded in a reinforced concrete beam body; the steel bar is wound with a tinned copper wire; the tinned copper wire penetrates through a reserved wire interface pre-formed in the reinforced concrete beam body; the tinned copper wire is connected with an electromagnetic induction device used for providing current; a guide hole is formed in the position, where a crack easily occurs, of the reinforced concrete beam body; and the guide hole is connected with a high-pressure jet grouting machine through a grouting pipe, and then magnetic mortar is injected into the crack. The magnetic mortar is injected into a required position under the guide adsorption of different magnetic attraction ends, so that the sufficient grouting effect is achieved, and the crack repairing and filling rate is increased. According to the pre-embedded and prefabricated magnetic attraction end guiding type building crack repairing device and the method based on the magnetic force, the needed materials are simple, the assembly cost is low, and the device has prefabrication performance, is fast to operate, and is high in crack repair guiding effect and long in duration time.

Description

technical field [0001] The invention relates to a pre-embedded and prefabricated magnetic attraction end-guided device and method for repairing building cracks based on magnetic force, which belongs to the technical field of building crack repair and is suitable for repairing reinforced concrete beams, bathroom floors, and bridge pier columns. Background technique [0002] At present, reinforced concrete has become the most widely used building material in structures in the world today because of its wide range of materials, low price, high compressive strength, and can be poured into various situations. As the scale of the current building structure continues to increase, the application of mass concrete is becoming more and more extensive. For buildings of mass reinforced concrete, the temperature in the north continues to rise due to the large amount of heat of hydration released by the cement during the hardening of the concrete. And the outside is in contact with the at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
CPCE04G23/0203
Inventor 刘杰郭建祥涂毅伟吴优胡永博陈子悦汪岩松宋瑞孙荣琪石谦李运舟杨浩宇
Owner CHINA THREE GORGES UNIV
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