Stress-free water-washing chiseling method

A chiseling method and stress-free technology, applied in the direction of ceramic molding machines, manufacturing tools, etc., can solve the problems of high cost, dust pollution, low efficiency, etc., and achieve the effect of poor solution effect and simple and practical operation

Inactive Publication Date: 2020-02-28

UNIV OF SCI & TECH BEIJING

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AI-Extracted Technical Summary

Problems solved by technology

[0017] The present invention provides a stress-free washing chisel method for solving the common quality problems of ...

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Abstract

The invention provides a stress-free water-washing chiseling method, and belongs to the technical field of concrete surface chiseling. The method comprises the following steps of, carrying out comprehensive inspection on formwork before construction, preparing chiseling solvent, cleaning the surface stains of the formwork, using a brush to uniformly coat the prepared chiseling solvent on the formwork in a part to be chiseled, smearing the formwork uniformly, and fabricating the formwork for pouring concrete after the air drying of the chiseling solvent; removing the formwork after the concretestrength reaches the specified requirement of the corresponding structure; immediately washing away the laitance with high-pressure water after removing the formwork, and exposing aggregate; and checking whether there is a place where the chiseling solvent is not applied, wherein the chiseling solvent is a mixture containing hydroxyl groups, and the chemical formula of the chiseling solvent is C12H22O11. The method solves the problems of poor effect, low efficiency, high cost, large noise, dust pollution and the like of the traditional concrete chiseling process.

Application Domain

Ceramic shaping apparatus

Technology Topic

SolventScrub brushes +10

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Experimental program(1)

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[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0037] The invention provides a stress-free water washing and chiseling method.

[0038] The method includes the following steps:

[0039] 1) Inspect and clean the template: Before construction, conduct a comprehensive inspection of the template and prepare the shaved solvent, clean the surface of the template, and do not apply the release agent on the part to be coated with the shaved solvent;

[0040] (2) Mark the area to be smeared: mark the area to be smeared on the part to be chiseled on the template;

[0041] (3) Applying chiseling solvent: evenly apply the prepared chiseling solvent on the part to be chiseled on the template with a brush;

[0042] (4) Pouring concrete: After evenly spreading, wait for the shaved solvent to air dry, then assemble the formwork to pour the concrete;

[0043] (5) Demolition of the formwork: the formwork shall be demolished after the concrete strength reaches the specified requirements of the corresponding structure;

[0044] (6) High-pressure water washing of laitance: After removing the template, immediately wash off the laitance with high-pressure water to expose the aggregate.

[0045] Among them, the shaved solvent used is a mixture containing hydroxyl, and the chemical formula is C 12 H 22 O 11 , The molecular structure is as follows:

[0046]

[0047] The description will be given below in conjunction with specific embodiments.

[0048] (1) Implementation plan: Check the quality of the template, the surface should be clean and free of impurities, prepare a solvent, mix it with water at a ratio of 3.7:1, stir and heat it to become viscous, and let it stand for use. When installing the formwork before pouring, evenly brush it on the formwork with a soft brush at the end of the wing plate, the end of the diaphragm and the end of the T beam, install the formwork and pour it, and remove it when the pouring is completed and the strength reaches 2.5MPa The side mold is flushed with high-pressure water to expose fresh aggregate.

[0049] (2) Work flow:

[0050] Check the surface quality of the formwork-----Prepare the solvent-----Mark the area-----Apply the solvent evenly on the end formwork-----Pour T-beam concrete-----Remove the end formwork ----- Rinse the end concrete surface with water to expose fresh aggregate.

[0051] (3) Precautions for construction:

[0052] ① Check the template before construction to ensure that the surface of the template is clean and free of stains.

[0053] ②Smear evenly on the formwork with a brush for 1-2h before pouring the concrete, leave a distance of 1cm away from the edge of the formwork to prevent quality damage, and control the amount of smearing at 0.2-0.3kg/m 2.

[0054] ③The air-drying time shall not be less than 1h. After pouring, the formwork shall be removed after the requirements of the corresponding structure are met, and the floating slurry shall be washed off with high-pressure water immediately.

[0055] ④The temperature is controlled within the range of +5℃~30℃.

[0056] ⑤ The shaved solvent should be stored in a cool place, away from heat sources, to prevent frost.

[0057] ⑥ Pay attention to the washing quality during the process of washing the floating slurry with high pressure water to prevent the occurrence of ditches and pits.

[0058] The advantages of the above method are as follows:

[0059] (1) Compared with the current manual chiseling, this method can greatly reduce the manual labor.

[0060] (2) Compared with the use of chisel, noise and dust pollution are reduced.

[0061] (3) It can reduce the cost of mechanical equipment and electricity.

[0062] (4) Conducive to construction safety management.

[0063] (5) Significantly improve construction efficiency.

[0064] (6) The chiseling quality is significantly improved.

[0065] Specifically, the most common method of chiseling is manually chiseling with a chisel. However, because these parts have a lot of reserved connecting steel bars, workers need to consume a lot of energy to do it seriously and responsibly, otherwise it cannot be guaranteed. Wet joint connection quality. A T-beam must be chiseled clean, and it takes at least three workers to complete it for two days.

[0066] Before installing the end template, one worker can complete the painting work in one hour. After the T beam is poured and the end template is removed, one worker flushes the end concrete with water, and the quality and quantity can be guaranteed in two hours. Finish chiseling work. Moreover, the cost of the solvent is low.

[0067] The stress-free water washing and chiseling process of the present invention well solves the problems of poor chiseling effect, uneven depth, and multiple smooth surfaces, and low manual chiseling efficiency, high cost, noise and dust pollution. It is suitable for all concrete structures, especially for parts where the construction space is small, manual and mechanical equipment are not easy to arrange, and it has good effects in prefabricated components. Greatly improve construction efficiency, reduce labor costs, and improve construction quality.

[0068] The above are the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made. These improvements and modifications It should also be regarded as the protection scope of the present invention.

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

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Poor solution

Stress-free water-washing chiseling method

A chiseling method and stress-free technology, applied in the direction of ceramic molding machines, manufacturing tools, etc., can solve the problems of high cost, dust pollution, low efficiency, etc., and achieve the effect of poor solution effect and simple and practical operation

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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