Concrete crack control device and control system thereof

Abstract

The invention provides a concrete crack control device and a control system thereof. The concrete crack control device comprises a strip-shaped screw rod, and a first clamping assembly and a second clamping assembly which are connected through the strip-shaped screw rod and used for clamping a concrete sample and applying pre-tightening force to the concrete sample. Each of the first clamping assembly and the second clamping assembly comprises a balance steel mesh and a spring module fixedly wound on the balance steel mesh. Elastic pre-tightening force with buffer property is provided for a concrete sample through the spring modules on the first clamping assembly and the second clamping assembly; damage to the concrete sample can be reduced in the crack manufacturing process; after the crack is manufactured, the crack width can be adjusted back, the cracking degree of the crack is strictly controlled, the variability of the crack width and the permeation flow is reduced, the concrete proportion does not need to be changed, the crack width adjusting precision is high, the operability is high, and a guarantee can be provided for obtaining a more accurate experiment result.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete crack control device and a control system thereof. Background technique [0002] Concrete will inevitably lead to microscopic cracks due to insufficient early vibration and unreasonable pouring, or external pressure during use. The generation of microscopic cracks will not only increase the intrusion speed of corrosive substances in the external environment, such as chloride ions, etc., cause erosion and damage to the steel bars inside the concrete, reduce its durability and service life, but also expand and extend the microscopic cracks to form macroscopic cracks, which will cause collapse and other serious accidents. Aiming at this problem of concrete, the concept of self-repairing concrete is proposed. When concrete has microscopic cracks due to its own drying shrinkage or external force and other factors, the repairing agent pre-mixed with concrete will quickly r...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a concrete crack control device and its control system aiming at the above-mentioned defects of the prior art, aiming to solve the problem of controlling artificial ground cracks by adding fibers or embedding steel grids. The degree of cracking needs to change the concrete ratio; and the cracked concrete is restrained by external steel hoops to control the width of microscopic cracks. The restraint range of steel hoops is small, the operability is low, and the accuracy required for the experiment cannot be achieved.

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