Method for fabricating side rough surfaces of prefabricated part

A production method and technology for prefabricated components, which are applied in the field of building construction, can solve the problem of inability to make rough surfaces by washing, and achieve the effects of prolonging the hardening time and simple operation.

Inactive Publication Date: 2013-03-20
CHINA CONSTR EIGHT ENG DIV CORP LTD
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AI Technical Summary

Problems solved by technology

When the component is made, if the rough surface is on the upper surface, the method of washing the slurry with water before the initial setting can be adopted, but for the side, the rough surface cannot be made by washing after the formwork is removed

Method used

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  • Method for fabricating side rough surfaces of prefabricated part

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Embodiment Construction

[0011] In order to facilitate a further understanding of the structure of the present invention, the present invention will be further described below in conjunction with specific examples.

[0012] The preparation method 1 of the rough side surface of the prefabricated component of the present invention uses a layer of retarder on the inside of the side form of the prefabricated component. The retarder is an admixture that delays the setting time of concrete and has no obvious influence on the strength of the later stage. The main component is Polyhydroxyl compounds, hydroxycarboxylates and their derivatives, high-sugar lignosulfonate, also known as retarded water-reducers because of their water-reducing effect, in addition, some inorganic salts such as zinc chloride, borate , Various phosphates also have retarding effect, the dosage is 0.1-0.6% of the cement dosage, the retarder is suitable for continuous pouring concrete, mass concrete, ready-mixed concrete and pumped concre...

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Abstract

The invention discloses a method for fabricating side rough surfaces of a prefabricated part, and the method mainly comprises the following steps of: brushing a layer of retarder to the inner side of the side form of the prefabricated part; pouring concrete, and removing the side form after the concrete is pre-hardened; and flushing the concrete surface of the side surfaces of the prefabricated part by using high-pressure water to form rough surfaces. A layer of mortar is applied to the surface of the side form in advance before brushing the retarder to the surface of the side form, and then the retarder is brushed on the mortar. The method for fabricating side rough surfaces of the prefabricated part provided by the invention can be used for prolonging the hardening time of the concrete and enabling the concrete to keep plasticity in long time by brushing a layer of retarder at the inner side of the side form of the prefabricated part; and the high-pressure water is applied to flushing the concrete surfaces of the side surfaces of the prefabricated part to form rough surfaces; and the method is simple to operate and capable of forming the rough surfaces on the side surfaces of the concrete of the prefabricated part.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a method for manufacturing a side rough surface of a prefabricated component. Background technique [0002] In order to ensure the combination of prefabricated components and cast-in-situ concrete, it is often necessary to make the joint parts rough. When the component is made, if the rough surface is on the upper surface, the method of washing the slurry with water before the initial setting can be adopted, but for the side surface, the rough surface cannot be made by washing after the formwork is removed. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a simple and effective method for making a rough surface on the side of a prefabricated component that can form a rough surface on the side of the component. [0004] In order to achieve the above-mentioned technical effect, the present invention discloses a meth...

Claims

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Application Information

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IPC IPC(8): C04B40/06C04B41/00
Inventor 于新平陈广林黎金亮赵亚军陈俊杰王桂玲马荣全周洪涛陈界羽童思哲苗冬梅姚守俨马洪娟范新海郭志鑫
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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