Concrete crack resistance detection machine for building civil engineering

Abstract

The invention discloses a building civil concrete crack resistance detection machine which comprises a shell, a working cavity is formed in the shell, concentric-square-shaped electric sliding rails with symmetrical positions are fixedly arranged on the front wall and the rear wall of the working cavity, and the end faces, close to the symmetrical center, of the concentric-square-shaped electric sliding rails are slidably connected with L-shaped mounting blocks with evenly distributed positions; the concrete crack resistance detection device is provided with a strip-shaped mounting block, a pressurizing block and a clamping block, the crack resistance of a concrete block can be detected when the concrete block is pressurized and loaded, water with oxygen can be injected into a hollow steel bar in concrete through the strip-shaped mounting block, so that the property of the concrete is changed for detection, and the concrete crack resistance detection device has the advantages of being accurate in detection result and multiple in simulation scene; a cam, an exhaust pipeline and a drainage pipeline are further arranged, connection and communication of the pipeline and the hollow steel bar can be achieved, water is injected into the steel bar, air is exhausted, the purpose of changing the concrete property is achieved, and the device has the advantages of being comprehensive in detection result and convenient and fast in scene simulation.

Description

technical field [0001] The invention relates to the technical field of concrete crack resistance, in particular to a concrete crack resistance detector for civil engineering. Background technique [0002] The crack resistance of concrete refers to the ability of concrete to resist cracking. The crack resistance of concrete is a comprehensive performance, which is related to tensile strength, ultimate tensile deformation capacity, tensile elastic modulus, autogenous volume deformation, creep and thermal properties. There is a certain relationship, because the tensile strength of concrete is much smaller than the compressive strength, the ultimate tensile deformation is very small, under the action of external force, temperature change, humidity change, etc., cracks are prone to occur, and cracks in concrete and reinforced concrete will affect the quality of buildings. Integrity, durability, and even safety and stability are usually not dedicated to simulating the test results...

AI Technical Summary

Problems solved by technology

[0002] The crack resistance of concrete refers to the ability of concrete to resist cracking. The crack resistance of concrete is a comprehensive performance, which is related to tensile strength, ultimate tensile deformation capacity, tensile elastic modulus, autogenous volume deformation, creep and thermal properties. There is a certain relationship, because the tensile strength of concrete is much smaller than the compressive strength, the ultimate tensile deformation is very small, under the action of external force, temperature change, humidity change, etc., cracks are prone to occur, and cracks in concrete and reinforced concrete will affect the quality of buildings. Integrity, durability, and even safety and stability are usually not dedicated to simulating the test results of concrete in different situations, and the test data is not accurate and comprehensive enough

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