Low-strength concrete core sample breaking device

Abstract

The invention discloses a low-strength concrete core sample breaking device. The breaking device comprises a fixed steel inserting piece inserted into a groove in the side face of a concrete core sample in solid concrete; a movable steel inserting piece, a pressure-bearing steel plate, a counter-force device and a force applying device are sequentially arranged on the fixed steel inserting piece;the fixed steel inserting piece is connected with the counter-force device through a connecting steel plate; and the counter-force device is erected and welded on the upper surface of the connecting steel plate and covers part of the fixed steel inserting piece, the movable steel inserting piece, the pressure-bearing steel plate and part of the force applying device. According to the invention, the fixed steel inserting piece is inserted into the groove in the side face of the concrete core sample; the movable steel inserting piece is extruded between the concrete core sample and the fixed steel inserting piece through the connecting steel plate, the counter-force device, the force applying device and the pressure-bearing steel plate; the concrete core sample is broken from the root through linear extrusion force from top to bottom; and practicability is high, and design is reasonable.

Description

technical field [0001] The invention relates to a low-strength concrete core sample breaking device. Background technique [0002] The core drilling method is a semi-destructive testing method that uses a special drilling rig to directly drill core samples from the structure, and infers the strength of the concrete based on the compressive strength of the core samples. Since the specimens come directly from the structure, the results are a good reflection of actual concrete strength and are therefore often used as a validation method for other in situ testing methods. [0003] In the actual detection work, how to break the drilled concrete core sample smoothly and with less disturbance is a very important step. In the prior art, the method of breaking the concrete core sample mainly adopts the following method: insert an arc-shaped steel wedge into the groove on the side of the concrete core sample, and knock it with a hammer, so that the concrete core sample is squeezed an...

AI Technical Summary

Problems solved by technology

The device and the method of use can solve the problems of low detection efficiency and affecting the integrity of the core sample in the prior art

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