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Defect repairing method for bottom concrete of self-supporting box of hollow floor system

A hollow floor and defect repair technology, applied in building maintenance, construction, building structure and other directions, can solve the problems of low adhesion between cement mortar and the bottom of the self-supporting box, poor appearance and appearance, and poor maintenance quality, etc. To achieve the effect of ensuring compactness and strength, high work efficiency, and simple construction method

Pending Publication Date: 2022-04-29
CHINA HUAYE GROUP
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Problems solved by technology

[0009] In view of the above problems, the purpose of this invention is to provide a method for repairing the defects of the concrete at the bottom of the hollow floor self-supporting box, so as to solve the problem that the repaired cement mortar and the bottom of the self-supporting box have low adhesion and maintenance quality. Poor appearance, poor appearance, and low efficiency

Method used

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Embodiment Construction

[0036] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0037] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying t...

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Abstract

The invention provides a defect repairing method for bottom concrete of a self-supporting box of a hollow floor system. The defect repairing method comprises the following steps: chiseling away concrete at a defect part at the bottom of the self-supporting box; according to the size of the self-supporting box and the size of concrete on the upper side of the self-supporting box, a grouting piece is manufactured; a grouting piece containing hole used for containing the grouting piece and an observation hole are formed in the self-supporting box and the position, extending to the upper side of the self-supporting box, of the concrete; erecting a template at the bottom of the self-supporting box; and a manufactured grouting piece is installed in the grouting piece containing hole, repairing slurry is injected into the grouting piece, and the repairing slurry enters the defect part at the bottom of the self-supporting box through the grouting piece till the space containing the repairing slurry is filled with the repairing slurry. By means of the repairing method, the problems that according to an existing repairing method, the bonding degree of cement mortar and the bottom of the self-supporting box is not high after repairing, the maintenance quality is poor, the appearance perception is poor, and efficiency is low can be solved.

Description

technical field [0001] The invention relates to the technical field of construction, and more specifically, to a method for repairing defects of concrete at the bottom of a hollow floor self-supporting box. Background technique [0002] The cast-in-place reinforced concrete hollow floor is formed by integrally pouring the self-supporting box as the inner mold and the cast-in-place concrete. The hollow floor is a form of concrete with a large cavity effect, and has a completely cast-in-place, I-shaped force-bearing section. , flat bottom, large cavity structure, and space stress characteristics. Among them, the basic force unit is the "I"-shaped two-way densely ribbed beam. [0003] Among them, the self-supporting box is the core of the hollow floor, which is a plastic product formed by a special process with special plastics as the raw material; the self-supporting box is used as the filling inner mold of the hollow floor, and is also used as the side mold of the two-way cas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
CPCE04G23/0237
Inventor 乌凤文张博孙忠仁
Owner CHINA HUAYE GROUP
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