Reinforcing structure and method for concrete construction with local damage

A concrete structure and damage technology, applied in bridge reinforcement, building construction, marine engineering, etc., can solve problems such as steel corrosion expansion, structural damage, safety problems, etc., and achieve crack suppression, reduction of tensile stress, and high strength. Effect

Inactive Publication Date: 2014-10-15
浙江固邦新材料有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If effective reinforcement materials and appropriate reinforcement methods cannot be adopted in time, the corrosion problem

Method used

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  • Reinforcing structure and method for concrete construction with local damage
  • Reinforcing structure and method for concrete construction with local damage

Examples

Experimental program
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Example Embodiment

[0021] A method and structure for strengthening damaged concrete structures, specifically including the following steps:

[0022] Step 1. Perform surface treatment on the part of the partially damaged concrete structure 5 to be treated, and remove the debris on the damaged surface of the part to be repaired; the debris includes the lining peeling part and / or dust;

[0023] Step 2, preparing polymer cement mortar 2, using polymer cement mortar 2 to initially fill the damaged area 7 of the site to be repaired, and / or to plug the crack 6 of the repair site;

[0024] Step 3, prepare the fiber woven net 1 and the bottom layer bonding material 4, and fix the fiber woven net 1 on the surface of the damaged area of ​​the part to be repaired through the fixing connector 3;

[0025] Step 4. On the basis of Step 3, spray the polymer cement mortar 2 until the design thickness is reached;

[0026] The above-mentioned polymer mortar is made by mixing re-emulsifiable powdered resin, special short fibe...

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Abstract

The invention discloses a reinforcing structure and method for concrete construction with local damage. The reinforcing method includes the following steps of 1), subjecting a to-be-repaired part to surface treatment; 2), filling holes with mortar and plugging cracks; 3), fixing a fiber-woven net on a damaged area with a fixing and connecting piece; 4), spraying the polymer concrete mortar to the design thickness; 5), forming a fiber-woven net and mortar composited structure. Therefore, the advantages of two materials can be given to full play by utilizing the fiber-woven net and the polymer concrete mortar in combination, and bearing capacity and durability of the damaged concrete construction can be remarkably enhanced.

Description

technical field [0001] The invention relates to a method for reinforcing partially damaged concrete structures such as concrete embankments, wharfs, and bridge piers, and in particular to a structure and a method for reinforcing damaged concrete structures using fiber woven nets and polymer cement mortar. technical background [0002] During the working process of concrete structures such as concrete dams, wharves, and bridge piers, due to the corrosion effects of seawater immersion, alternating wet and dry, sun exposure, coastal salt spray, marine organisms, and humid air, the concrete gradually forms a porous corrosion surface. The corrosive medium further penetrates through the tiny gaps on the concrete surface and invades the interior of the concrete, causing the steel bars inside the reinforced concrete structure to corrode. If effective reinforcement materials and appropriate reinforcement methods cannot be adopted in time, the corrosion problem of steel bars will expa...

Claims

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Application Information

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IPC IPC(8): E04G23/02E01D22/00E02B7/00
Inventor 闫东明徐世烺丁德坤
Owner 浙江固邦新材料有限公司
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