A device and method for early maintenance of cast-in-place concrete walls

Abstract

The invention provides an early maintenance apparatus of a cast-in-place concrete wall surface. The early maintenance apparatus comprises an inside corner membrane for the cast-in-place concrete wallwith a water outlet hole; the inner side wall of the inside corner membrane is fixedly provided with a sleeve, the sleeve is successively provided with a water outlet sleeve section with an opening end connected with the water outlet hole of the inside corner membrane, a water inlet sleeve section with a water inlet hole and a threaded sleeve section with inner threads from the head to the tail along the axial direction; an opening of the water outlet sleeve section is in a shape which is gradually narrowed from outside to inside; the water inlet hole is connected with a water supply pipe; a special screw is installed inside the sleeve, and the special screw is successively provided with a water sealing section with the shape and size matched with the water outlet sleeve section, a water inlet section, a threaded section with outer threads matched with the inner threads of the threaded sleeve section, and a rotating fixed section from head to tail along the axial direction; the lengthof the threaded section is greater than the length of the threaded sleeve section; and the tail end of the rotating fixed section is provided with a non-circular counter bore, and a center line of thenon-circular counter bore is overlapped with a central axis of the special screw. By adopting the early maintenance apparatus, the early maintenance of a concrete wallboard before a mold is removed can be realized.

Description

technical field [0001] The invention relates to the fields of municipal engineering and building construction, in particular to an early maintenance device and method for cast-in-situ concrete walls. Background technique [0002] At present, ready-mixed concrete is basically used in the construction of concrete structures at home and abroad. In building construction, it is generally necessary to moisturize and maintain the concrete within a certain period of time after the concrete is poured to prevent cracking. The strength of vertical concrete components such as walls and columns, which are load-bearing in concrete structures, becomes the key to quality control on site. Most of the maintenance on the construction site adopts artificial watering and maintenance, or covering and water conservation. For horizontal components, such as concrete slabs, the method of watering and covering with plastic film is generally used for maintenance, and the maintenance effect is good. Co...

AI Technical Summary

Problems solved by technology

However, in terms of early maintenance before the formwork is removed, there is still no good maintenance plan

[0003] The existing maintenance methods for the wall not only have the problems of uneven maintenance and waste of water resources, but also the maintenance after the removal of the formwork will cause untimely maintenance, resulting in cracks on the wall surface, and the quality of the cast-in-place concrete wall surface is extremely poor. big impact

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