Pavement material hydrodynamic pressure scouring test machine

A technology of pavement materials and dynamic water pressure, which is applied in the direction of testing wear resistance, etc., can solve problems such as loud noise and poor working environment, and achieve the effects of improving stability, enhancing practical functions, and ensuring accuracy

Active Publication Date: 2016-11-30
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the device is actually used, the air compressor and the vacuum pump are often turned on, which makes a lot of noise and the working environment on site is poor

Method used

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  • Pavement material hydrodynamic pressure scouring test machine
  • Pavement material hydrodynamic pressure scouring test machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] figure 1 and figure 2Shown is a kind of pavement material hydrodynamic pressure scouring test machine embodiment of the present invention, and this testing machine comprises airtight test chamber 1, water supply system and control system 6, and the airtight test chamber 1 is fixedly provided with mounting seat 11, and mounting seat 11 The inner cavity of the airtight test chamber 1 is divided into an upper forward flushing chamber 12 and a lower reverse flushing chamber 13. The forward flushing chamber 12 is provided with a dynamic water inlet and outlet 121 connected to the water supply system, and the mounting seat 11 is provided with multiple A positioning cylinder 111, the forward flushing chamber 12 and the reverse flushing chamber 13 communicate through the positioning cylinder 111, wherein at least one positioning cylinder 111 is provided with a reverse flushing cylinder 8, the upper end of the reverse flushing cylinder 8 is closed, and the lower end is connecte...

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Abstract

The invention discloses a dynamic water pressure scouring test machine for pavement materials, which comprises a closed test box and a water supply system. A mounting seat is fixed inside the closed test box, and the mounting seat divides the inner cavity of the closed test box into an upper positive To the flushing chamber and the lower reverse flushing chamber, the mounting base is provided with a plurality of positioning cylinders, at least one positioning cylinder is equipped with a reverse flushing cylinder with a closed upper end and a lower end connected to the reverse flushing chamber, and the rest of the positioning cylinders are installed A test piece carrier for fixing the pavement material test piece is provided, and the forward flushing chamber is provided with a dynamic water inlet and outlet connected to the water supply system. The dynamic water pressure scouring test machine for pavement materials of the present invention can truly simulate the actual scouring conditions of pavement materials, has reliable test results, and is applicable to various mixture types.

Description

technical field [0001] The invention relates to a pavement material performance detection test device, in particular to a pavement material dynamic water pressure scouring test machine. Background technique [0002] During precipitation, the rainwater accumulated on the road surface discharges to both sides of the road along the comprehensive slope of the road surface, thus forming a layer of flowing water film on the road surface. The thickness of the water film is related to the precipitation intensity, road slope, road surface roughness and road rutting degree and other factors. When the vehicle is running, the water film is between the tire and the road surface. The water film is squeezed by the tire. The relatively static water produces a dynamic and instantaneous hydrodynamic pressure under this pressure. Under this pressure, the water is Press into the pores and gaps of the road surface; when the wheel leaves the road surface, it will generate negative pressure on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56
Inventor 周志刚曾昭茂李岩袁秀湘姜旺恒蒋腾腾刘旭光
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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