Concrete permeability detection device and method

Abstract

The invention relates to a concrete permeability detection device and method. The concrete permeability detection device comprises a funnel, a pressure cylinder and a hydraulic bag; a concrete sampleis put in the pressure cylinder; a sealing structure for realizing clearance sealing between the concrete sample and the pressure cylinder is arranged on the inner wall of the pressure cylinder; the funnel is detachably connected to the bottom of the pressure cylinder; the bottom of the funnel is sealed; the hydraulic bag is communicated with outside through a water pipe; the water pipe is provided with a water valve; the opening at the lower end of the hydraulic bag is connected with the inner wall of the pressure cylinder; a piston used for extruding the hydraulic bag is arranged at the upper part of the pressure cylinder; one end of a pressure spring is fixed; the other end drives a second rack to move; the second gear is meshed with a second gear; the second gear is connected with a conical reel; a columnar reel and the conical reel are rotatably connected onto the pressure cylinder; furthermore, the columnar reel and the conical reel are mutually driven through a transmission rope; the columnar reel is connected with a first gear; the first gear is meshed with a first rack; and the first rack is fixedly connected with the piston. The cost is low. The water pressure can be controlled to be constant without connection of a power supply.

Description

technical field [0001] The invention relates to the technical field of concrete detection, in particular to a concrete water permeability detection device and detection method. Background technique [0002] While permeable concrete meets the strength requirements, it also needs to maintain certain through-holes to meet the water permeability requirements. At present, the water permeability of concrete under different water pressures is different. To detect the water permeability of concrete, it is necessary to provide different pressures. The existing detection device has a complex structure, and multiple sensors and controllers need to be installed to control the water pressure, which is expensive. , and the use needs to be connected to the power supply, and the place of use is restricted. Contents of the invention [0003] In view of the above prior art, the present invention provides a concrete water permeability detection device and detection method, which are low in ...

AI Technical Summary

Problems solved by technology

At present, the water permeability of concrete under different water pressures is different. To detect the water permeability of concrete, it is necessary to provide different pressures. The existing detection device has a complex structure, and multiple sensors and controllers need to be installed to control the water pressure, which is expensive. , and the use needs to be connected to the power supply, and the place of use is restricted

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