Constant-head multidirectional seepage test device for bituminous mixture

A technology of asphalt mixture and testing device, which is applied in the direction of measuring device, analysis material, permeability/surface area analysis, etc. It can solve the problem of inability to test lateral seepage, inability to achieve constant high water head pressure, and difficulty in realizing pure lateral water flow in asphalt pavement Seepage and pure vertical seepage test and horizontal-vertical coupling seepage test and other issues, to achieve good consistency and ensure the effect of unity

Active Publication Date: 2018-10-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the disadvantages that the asphalt mixture water seepage meter in the prior art cannot realize the constant high water head pressure, and cannot test the lateral seepage of water flow in the asphalt pavement under the action of actual vehicle load, and also

Method used

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  • Constant-head multidirectional seepage test device for bituminous mixture
  • Constant-head multidirectional seepage test device for bituminous mixture
  • Constant-head multidirectional seepage test device for bituminous mixture

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specific Embodiment approach 1

[0017] Specific implementation mode one: combine Figure 1 to Figure 5 To illustrate this embodiment, a multi-directional seepage test device for asphalt mixture with constant water head described in this embodiment includes a lower chamber 1 of the seepage mechanism, a connecting piece 2 for the upper and lower chambers of the seepage mechanism, an upper chamber 3 of the seepage mechanism, and a seepage outlet 5 , cut-off valve 6, measuring cylinder 7, connecting sleeve 9, end sleeve 10, water tank connecting pipe 12, constant water head supply water tank 13, constant pressure drain pipe 14 and water supply pipe 15, the lower cavity 1 of the seepage mechanism passes through the seepage mechanism The upper and lower chamber connectors 2 are connected to the upper chamber 3 of the seepage mechanism, the seepage outlet 5 of the lower chamber 1 of the seepage mechanism is connected to the measuring cylinder 7 through the water cut-off valve 6, and the lower end of the connecting p...

specific Embodiment approach 2

[0018] Specific implementation mode two: combination Figure 1 to Figure 5 To illustrate this embodiment, a multi-directional seepage test device for asphalt mixture with constant water head described in this embodiment further includes a hydraulic pressure gauge 4 installed on the lower cavity 1 of the seepage mechanism. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0019] Specific implementation mode three: combination Figure 1 to Figure 5 To illustrate this embodiment, a multi-directional seepage test device for asphalt mixture with constant water head described in this embodiment also includes an exhaust valve 8 for the upper cavity of the seepage mechanism, and the exhaust valve 8 for the upper cavity of the seepage mechanism is installed in the upper cavity of the seepage mechanism on the upper surface of body 3. Other components and connections are the same as those in the first embodiment.

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Abstract

The invention relates to a multidirectional seepage test device for a bituminous mixture, in particular to a constant-head multidirectional seepage test device for the bituminous mixture, aims to overcome the defect that the bituminous mixture seepage meter in the prior art cannot realize constant pressure of high head and cannot test lateral seepage of water flow on a bituminous pavement under the action of actual vehicle load and also aims to solve the problem that pure lateral seepage tests and pure vertical seepage tests as well as lateral-vertical coupled seepage tests of water flow on the bituminous pavement are difficult to realize. The multidirectional seepage test device comprises a seepage mechanism lower cavity, a seepage mechanism upper cavity and lower cavity connecting piece,a seepage mechanism upper cavity, a seepage water outlet, a cut-off valve, a measuring cylinder, a connecting sleeve, an end sleeve, a water tank connecting pipe, a constant head supplementing watertank, a constant-pressure drain pipe and a water supplementing pipe. The invention belongs to the field of road and bridge engineering.

Description

technical field [0001] The invention relates to a multi-directional seepage test device for asphalt mixture, in particular to a constant-head multi-directional seepage test device for asphalt mixture, which belongs to the field of road and bridge engineering. Background technique [0002] Moisture seepage characteristics are one of the important physical parameters that affect the durability and functional properties of asphalt pavement materials. Generally, the asphalt pavement surface layer is used as a waterproof barrier to prevent external moisture from infiltrating into the semi-rigid base layer, so as to prevent the semi-rigid base material from being soaked in water for a long time and cause the loss of bearing strength. As the asphalt pavement material, the asphalt mixture itself is also subject to long-term erosion of moisture in the process of direct contact with the external moisture environment. The asphalt film on the asphalt film, the asphalt film is gradually...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/0806
Inventor 董泽蛟刘志杨姚蒙阳周涛杨晨
Owner HARBIN INST OF TECH
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