Forming assembly for plugging of prefabricated concrete grouting layer as well as component and method

Abstract

The invention relates to a forming assembly for plugging of a prefabricated concrete grouting layer as well as a component and a method. The forming assembly comprises a concentric-square-shaped or U-shaped rubber pipe surrounding a grouting layer area, wherein the rubber pipe can communicate with an external air source to achieve inflation and deflation, and the rubber pipe is arranged with the functions that under the condition of inflation, the grouting layer area is isolated from the outside, a plugging space is formed on the outer side of the rubber pipe, and the plugging space is used for being filled with sealing slurry so as to form a plugging structure; and an air nozzle is arranged on the side wall of the rubber pipe and can extend out of a notch. According to the forming assembly for plugging of the prefabricated concrete grouting layer as well as the component and the method, pouring of the plugging structure at the grouting layer can be conveniently achieved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a forming assembly, a component and a method for plugging an assembled concrete grouting layer. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] There are two ways of grouting connection operation for sleeve grouting, namely pressure type and gravity type. Both of these methods are to set the grouting port and the grouting port on the grouting sleeve. The grout is injected from the grouting port during the construction of the grouting sleeve at present, but the inventor has found that in order to ensure the strength of the grouting sleeve, the grouting sleeve The size of the grouting port is small, and the work efficiency of grouting through the grouting port is low. [0004] At the same time, in the existing scheme, soft elastic ...

AI Technical Summary

Problems solved by technology

The grout is poured into the joints to form a grouting layer, but in this arrangement, the inventor found that the grout is easily squeezed near the steel bar, thereby blocking the grouting sleeve, resulting in the inability to pour grout into the grouting sleeve , causing a certain safety hazard to the project

[0005] The inventor also found that, using the existing grouting sleeve construction technology, the bottom seams of the prefabricated components are made of soft elastic materials such as rubber and plastic strips, which are easily compressed and deformed under pressure for a long time, causing the top grout to fall back; the prefabricated components The bottom seam is not strictly leaking, causing the top slurry to fall; the air brought in by stirring and the air enclosed during grouting will turn up when standing, causing the top slurry to fall; the warehouse will cause the top slurry to fall; The liquid level may be lower than the height required by the minimum anchorage length 8d of steel bars caused by the fall

Insufficient sleeve grouting fullness brings great safety hazards to the project, and even becomes a dangerous building

Images