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Repair system for concrete cracks

A concrete and crack technology, applied in the field of concrete crack repair system, can solve the problems of bottom wall deformation and fission, insufficient freeze-thaw resistance, bottom wall cracks, etc., to prevent thermal stress, better shear strength, and water resistance. and better freeze-thaw resistance

Active Publication Date: 2020-09-01
NORTHWEST UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the above problems, the present invention provides a repair system for concrete cracks, which effectively avoids the lack of shear strength, water resistance, and freeze-thaw resistance in the actual application of concrete crack inhibitors in the prior art , The thermal stress causes the bottom wall in the concrete crack to deform and crack, and the bottom wall in the concrete crack also cracks.

Method used

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  • Repair system for concrete cracks
  • Repair system for concrete cracks
  • Repair system for concrete cracks

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the repair system for concrete cracks includes an epoxy resin layer 1, a thermoplastic sealing layer 2, and a base encapsulation growth layer 3 that are sequentially arranged from the crack surface along the crack depth direction to the bottom wall in the crack;

[0042] It also includes an auxiliary thermal layer 4 penetrating through the epoxy resin layer 1 , the thermoplastic sealing layer 2 and the base package growth layer 3 .

[0043] The thickness ratio of the epoxy resin layer 1 , the thermoplastic sealing layer 2 and the substrate packaging growth layer 3 is: 1:1:1.

[0044] The material of the base encapsulation growth layer 3 is a concrete crack inhibitor, and the preparation method of the concrete crack inhibitor comprises the following steps:

[0045] (1) Synthesis of β-cyclodextrin powder containing multiple double bonds: first disperse β-cyclodextrin in anhydrous dimethyl sulfoxide, and gradually add dropwise acryloyl chloride ...

Embodiment 2

[0079] A repair system for concrete cracks, including an epoxy resin layer 1, a thermoplastic sealing layer 2, and a substrate encapsulation growth layer 3, which are sequentially arranged from the crack surface along the crack depth direction to the bottom wall of the crack;

[0080] It also includes an auxiliary thermal layer 4 penetrating through the epoxy resin layer 1 , the thermoplastic sealing layer 2 and the base package growth layer 3 .

[0081] The thickness ratio of the epoxy resin layer 1 , the thermoplastic sealing layer 2 and the substrate packaging growth layer 3 is: 1:1:1.

[0082] The material of the base encapsulation growth layer 3 is a concrete crack inhibitor, and the preparation method of the concrete crack inhibitor comprises the following steps:

[0083] (1) Synthesis of β-cyclodextrin powder containing multiple double bonds: first disperse β-cyclodextrin in anhydrous dimethyl sulfoxide, and gradually add dropwise acryloyl chloride containing 10wt% mass...

Embodiment 3

[0116] A repair system for concrete cracks, including an epoxy resin layer 1, a thermoplastic sealing layer 2, and a substrate encapsulation growth layer 3, which are sequentially arranged from the crack surface along the crack depth direction to the bottom wall of the crack;

[0117] It also includes an auxiliary thermal layer 4 penetrating through the epoxy resin layer 1 , the thermoplastic sealing layer 2 and the base package growth layer 3 .

[0118] The thickness ratio of the epoxy resin layer 1 , the thermoplastic sealing layer 2 and the substrate packaging growth layer 3 is: 1:1:1.

[0119] The material of the base encapsulation growth layer 3 is a concrete crack inhibitor, and the preparation method of the concrete crack inhibitor comprises the following steps:

[0120] (1) Synthesis of β-cyclodextrin powder containing multiple double bonds: first disperse β-cyclodextrin in anhydrous dimethyl sulfoxide, and gradually add dropwise acryloyl chloride containing 10wt% mass...

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Abstract

A repair system for concrete cracks, comprising an epoxy resin layer, a thermoplastic packing layer and a base encapsulation growth layer sequentially arranged from the surface of a crack to the bottom wall in the crack in the longitudinal depth direction of the crack, and further comprising an auxiliary heating layer penetrating through the epoxy resin layer, the thermoplastic packing layer and the base encapsulation growth layer. The thickness ratio of the epoxy resin layer, the thermoplastic packing layer and the base encapsulation growth layer is 1: 1: 1. In combination with other parts, the defect of also forming a crack in the bottom wall in the concrete crack due to deformation cracking of the bottom wall in the concrete crack caused by thermal stress and insufficient shear strength, water resistance and freeze resistance in actual application of a concrete crack inhibitor in the prior art is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of concrete crack repair, in particular to a repair system for concrete cracks. Background technique [0002] Concrete cracks are physical structural changes caused by internal and external factors of the concrete structure, and cracks are the main reason for the reduction of the bearing capacity, durability and water resistance of concrete structures. Part of the concrete structure plays a water-retaining role in the environment where it is located. When concrete cracks penetrate the backside and frontside, serious water leakage will occur. In some special places, it may cause major engineering accidents. [0003] In order to solve the problem of concrete cracks, what is generally adopted is to fill concrete crack inhibitors in the concrete cracks, and the preparation method of such concrete crack inhibitors comprises the following steps: [0004] (1) Synthesis of β-cyclodextrin powder containing multiple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02C04B28/26C04B26/14C08B37/16C08F299/00C04B111/72
CPCE04G23/0203C04B28/26C04B26/14C08B37/0012C08F299/00C04B2111/72C04B2201/50C04B24/42C04B24/383C04B24/08C04B24/06C04B24/026C04B24/16C04B24/023C04B24/34C04B22/148C04B24/129C04B18/021C04B14/106C04B14/08C04B14/06C04B24/02C04B22/14C04B18/08
Inventor 甘季中曹万智杨永恒王洪镇郭启龙庞建利
Owner NORTHWEST UNIVERSITY FOR NATIONALITIES
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