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Concrete permeability measuring device and method capable of controlling flow

A technology for controlling flow rate and measuring device, which is applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc. It can solve the problems of large measurement error and complicated operation, achieve small error, simplify operation process, and improve The effect of test accuracy

Inactive Publication Date: 2020-05-08
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose: In order to overcome the deficiencies in the prior art, the present invention provides a flow-controllable concrete permeability measurement device and method, which solves the problems of complicated operation and large measurement error of the existing concrete permeability measurement device

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  • Concrete permeability measuring device and method capable of controlling flow
  • Concrete permeability measuring device and method capable of controlling flow

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Such as figure 1 As shown, a flow-controllable concrete permeability measuring device includes a test piece sleeve 1, a ball valve 2, a first PVC pipe 3, a second PVC pipe 4, a flow meter 5, a base 6, a water tank 7, and a submersible pump 8 And platform 9.

[0024] The water tank 7 is fixed on the base 6, the submersible pump 8 is placed in the water tank 7, the upper part of the water tank 7 is connected with the flow meter 5 through the third PVC hose 10, the flow meter 5 is located outside the water tank 7, and a platform 9 is arranged above the water tank 7 ; The test piece casing 1 is connected with the upper and lower standpipes through a flange 11, and the upper standpipe is connected with the second PVC pipe 4, and the other end of the second PVC pipe 4 is connected with the flowmeter 5; the lower standpipe is connected with the flow meter 5; The firs...

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Abstract

The invention discloses a concrete permeability measuring device capable of controlling flow. The concrete permeability measuring device comprises a test piece sleeve, a ball valve, a first PVC pipe,a second PVC pipe, a flow meter, a base, a water tank, a submersible pump and a bearing platform. The water tank is fixed to the base, the submersible pump is placed in the water tank, the upper portion of the water tank is connected with the flowmeter through a third PVC hose, the flowmeter is located outside the water tank, and the bearing platform is arranged above the water tank. A test piecesleeve is connected with an upper vertical pipe and a lower vertical pipe through flange plates, the upper vertical pipe is connected with the second PVC pipe, and the other end of the second PVC pipeis connected with the flow meter; the lower vertical pipe is connected with the first PVC pipe, and the ball valve is arranged between the lower vertical pipe and the first PVC pipe; pressure sensorsare fixed to the upper portion and the lower portion of the test piece sleeve and connected with a digital differential pressure gauge through wires. According to the concrete permeability measuringdevice and the measuring method by using the same, the measuring error is small, the precision is high, and the test piece mounting and dismounting process is simple and rapid.

Description

technical field [0001] The invention relates to a flow-controllable concrete permeability measuring device and method, belonging to the technical field of concrete performance testing. Background technique [0002] Concrete is a complex porous medium material, and its permeability is an important index to evaluate the performance of concrete. The stable flow method calculates the permeability coefficient by measuring the pressure difference and water seepage after steady seepage, and has become a commonly used concrete permeability test method because of its reliable and clear principle. [0003] However, the existing devices and methods for measuring the permeability of concrete by the steady flow method are not perfect enough. In the prior art, people use air compressors and pressure regulators to realize the water pressure of the concrete permeability testing device can be adjusted, but it still needs manual water replenishment on a regular basis, and the operation is co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/0806G01N15/0826
Inventor 陈徐东谢文剑李威彤程熙媛胡良鹏
Owner HOHAI UNIV
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