Production process of prefabricated concrete wallboard containing rough surface

Abstract

The invention discloses a production process of a prefabricated concrete wallboard containing a rough surface. The production process of the prefabricated concrete wallboard containing the rough surface comprises the steps of cleaning die table, pasting double-sided glue, cutting foam film, laying and pasting foam film, assembling die, spraying release agent, binding steel bar, fixing pre-embeddedparts, checking and accepting, pouring concrete, maintaining member, removing die, cleaning rough surface and stacking member. When the rough surface of the prefabricated wallboard is manufactured, water washing is not required, the surface of the die is not required to be cleaned, only a foam film is required to be removed, the time is shortened, and the labor is saved.

Description

technical field [0001] The invention relates to a production process of prefabricated concrete wall panels, in particular to a production process of prefabricated concrete wall panels with rough surfaces. Background technique [0002] According to the requirements of the current specification JGJ1-2014, the area of ​​the rough surface of the prefabricated wall panel should not be less than 80% of the joint surface, the depth of the rough surface should not be less than 4mm, and the depth of the rough surface of the prefabricated beam end, prefabricated column end, and prefabricated wall end should not be less than 80%. Less than 6mm, so when producing prefabricated wall panels, it is necessary to make a rough surface at the contact part between the concrete prefabricated wall panels and the cast-in-place concrete according to the requirements of the specification. [0003] At present, there are two main methods of rough surface production. The rough surface is made by using ...

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Problems solved by technology

[0003] At present, there are two main methods of rough surface production. The rough surface is made by using pattern steel mold and concrete surface retarder water washing. The pattern depth and coverage of the steel plate cannot meet the requirements of the specification JGJ1-2014; 2. The production process of the concrete surface retarder washing rough surface: apply the surface retarder on the surface of the steel mold of the prefabricated wall panel, and use a high-pressure water gun to clean the surface after the mold is removed. Flush to expose the aggregate, which can meet the requirements for rough surfaces in the specification

If surface retarder is used, it is necessary to set up a special washing area (pool) in the workshop or factory area. The washed concrete waste is more difficult to clean, and it also causes pollution to the factory area or workshop

In addition, the surface retarder needs to be washed within 48 hours. Once it exceeds 48 hours, the washing effect will be poor, and the insufficiently rinsed waste residue remaining on the surface of the prefabricated wallboard will form a surface loose layer. Once the control is not in place, it will be damaged. In the future, the integrity of the housing structure will be adversely affected

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