Unstressed permeating washing scabbling technology

A water-penetrating, stress-free technology, which is applied in construction, building structure, and building material processing, can solve problems such as poor chiseling effect, large noise and dust pollution on site, and uneven depth, so as to solve the problem of chiseling quality Common faults and the effect of saving construction costs

Inactive Publication Date: 2015-02-25
中交二公局第五工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the common defects of chiseling quality such as poor chiseling effect, uneven depth, and many smooth surfaces in the traditional concrete surface aggregate chiseling method, and at the same time, manual chiseling has low efficiency, high cost, and large site noise and dust pollution. shortcoming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention provides a stress-free penetrating water washing chiseling process, which is applicable to any concrete surface that needs chiseling, and the construction temperature of the whole process is within the range of +5°C to 40°C. This process includes the following steps:

[0019] (1) Construction preparation and installation of formwork for construction; the method and steps of installing formwork for construction are consistent with the existing construction technology. This process is used for the concrete surface that needs to be chiseled. Before using this process, prepare the concrete surface treatment retarder required by this process, the brushing equipment and water washing equipment required for this process on the basis of the original concrete construction preparation ( That is, the high-pressure water-filling equipment that needs to chisel the rough concrete surface for flushing), the brushing equipment and the water washing equipment are all prior...

Embodiment 2

[0056] On the basis of Example 1, when the step (3) brushes the concrete surface treatment retarder, leave a 1cm range around the formwork and do not apply it, so as to prevent the retarder from penetrating into the surrounding of the concrete, causing the range of chiseling to expand and edge falling , the contact surface is linearly damaged. If the retarder has penetrated into the surrounding concrete before it is air-dried, it will cause the edges to fall off and the range of chiseling will expand. In the step (4), the air-drying time of the retarder is 1-2 hours, and the concrete is poured after air-drying. The concrete surface treatment retarder mainly includes a retarder, a thickener and a film-forming agent. The concrete surface treatment retarder is a blended finished product provided by Guangzhou Zongyuan Building Materials Co., Ltd.: ZY-C concrete surface treatment retarder, which can be purchased directly from the company and does not need to be prepared by itself....

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PUM

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Abstract

The invention belongs to the technical field of concrete surface aggregate scabbling treatment, and particularly provides an unstressed permeating washing scabbling technology. The unstressed permeating washing scabbling technology comprises the main steps that (1) construction preparation is carried out, wherein concrete surface treatment retarder is mixed on the basis of traditional concrete construction preparation, and a formwork for construction is mounted; (2) the formwork is cleaned; (3) the concrete surface treatment retarder is brushed; (4) after the brushed concrete surface treatment retarder is air-dried, concrete starts to be poured; (5) the formwork is dismounted; (6) laitance is washed off with high-pressure water; (7) after the laitance is washed off with the water, whether missing happens in the brushing process of the concrete surface treatment retarder or not is checked. The face needing to be scabbled is smeared with the retarder, the concrete curing time of the scabbled face of 5 mm to 10 mm is slowed down, the concrete surface reaches the rough effect through washing and brushing after the formwork is dismounted, common quality problems of traditional scrabbling are effectively solved, and construction cost is saved.

Description

technical field [0001] The invention relates to the technical field of concrete surface aggregate chipping treatment, and specifically provides a stress-free penetration water washing chipping process. Background technique [0002] The roughening treatment of the prefabricated box girder's flange plate, end diaphragm and beam end is the key process of box girder prefabrication. Conventional chiseling uses a special chisel hammer or a hand-held electric drill to chisel off. This traditional chisel method has always suffered from poor chiseling effects, uneven depth, and many smooth surfaces. At the same time, manual chiseling is low in efficiency and cost High, on-site noise and dust pollution. Contents of the invention [0003] The purpose of the present invention is to overcome the common defects of chiseling quality such as poor chiseling effect, uneven depth, and many smooth surfaces in the traditional concrete surface aggregate chiseling method, and at the same time, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/00E04G21/02
Inventor 毕旭东李昊天冯玉祥任凯旋崔学涛闫林强刘长伟赵刚余陇刚孙珩轩
Owner 中交二公局第五工程有限公司
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