Concrete reinforcement cover pre-detection tool for beam, column and wall

Abstract

The invention discloses a concrete reinforcement cover pre-detection tool for a beam, a column and a wall, comprising a plate A, wherein the center of the plate A is vertically connected with an operation rod, the width of plate A is M-P, wherein, M shows the nominal thickness of the cover, P is the maximum allowable negative deviation of nominal thickness of the cover. The tool further comprises a plate B, the center of plate B is vertically connected with the other end of the operation rod; the width of the plate B is M+Q, M is the same as that of plate A; and Q is the maximum allowable deviation of the nominal thickness of the cover. The beam with 50mm of design thickness of cover is taken as example, after binding the reinforcement, 43mm of plate A extends between the outer edge of the reinforcement and the template to conduct detection. The part, through which plate A can pass,is qualified. If plate A cannot pass through, the reinforcement has small cover, the plate B is detected by 60mm wide of plate B, and if the plate B can pass, the reinforcement has great cover. The tool can detect whether the concrete reinforcement cover of beam, column and wall conforms to the design requirement or not quickly, and the tool has the features of simple structure and convenient operation.

Description

technical field [0001] The invention relates to a tool for detecting the protective layer of concrete reinforcement, in particular to a tool for quickly detecting whether the thickness of the protective layer of reinforced reinforcement meets the design requirements before concrete pouring of beams, columns or walls. Background technique [0002] The steel bar protection layer of reinforced concrete is very important to the building structure, which is the distance from the outer edge of the outermost steel bar of the steel bar protection layer to the concrete surface. [0003] Reinforced concrete is a composite material composed of two different materials, steel and concrete. The good bonding performance of the two materials is the basis for them to work together. The requirement for the concrete cover is to ensure that the steel and the surrounding concrete can work together, and Make the reinforcement exert the required strength for calculation. [0004] If the protectiv...

AI Technical Summary

Problems solved by technology

[0010] In order to ensure the thickness of the reinforced protective layer of concrete structures, concrete pads are usually placed between the modules and the steel bars at the construction site; however, because the formwork will squeeze the pads, the pads will shift, which affects the thickness of the protective layer of the structure , making it impossible to meet specification requirements

In addition, workers seldom take the initiative to check whether the pads have shifted after installing the formwork or binding the steel bars; Layers of protection to check

[0011] The patent application number is 201420704211.9 "a measuring ruler for the thickness of the cast-in-place concrete protective layer", which proposes a technical solution for detecting the thickness of the concrete protective layer of the floor before the concrete is poured. This detection ruler is not suitable for beams, columns, etc. , walls and other reinforced concrete structures, and it cannot achieve rapid detection

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