Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for detecting water permeability coefficient of bituminous pavement

A technology of water seepage coefficient and asphalt pavement, which is used in measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc. Precise reading, easy to read effect

Active Publication Date: 2018-06-12
宁波市华欣建材测试有限公司
View PDF12 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the liquid level drops, the water pressure on the corresponding road surface decreases, which will affect the rate of water seepage, thereby affecting the accuracy of measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for detecting water permeability coefficient of bituminous pavement
  • Device and method for detecting water permeability coefficient of bituminous pavement
  • Device and method for detecting water permeability coefficient of bituminous pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 and figure 2 Shown, a kind of bituminous pavement seepage coefficient measuring device comprises a disc-shaped base 1, has a hollow cavity 11 axially penetrated in the base 1, and a water pressure sensor 61 is installed in the hollow cavity 11, and the water pressure The sensor 61 communicates with a digital display 62 via wires, and the digital display 62 is embedded on the upper surface of the base 1 . The lower surface of the base 1 is fixed with a rubber suction cup 13 with a trumpet-shaped cross section. The horn cavity of the rubber suction cup 13 is connected to the air pump (not shown in the figure) through an air guide tube 131. The air passage inlet of the air pump is set The air release valve utilizes the suction capacity of the air pump to form a negative pressure between the rubber suction cup 13 and the asphalt pavement, thereby increasing the sealing performance between the base 1 and the asphalt pavement. A graduated cylinder 2 is det...

Embodiment 2

[0042] A method for measuring water seepage coefficient of asphalt pavement, using the device for measuring water seepage coefficient of asphalt pavement in Example 1, comprising the following steps:

[0043] Step one, install the measuring device on the impermeable panel.

[0044] The impermeable panel takes a glass plate as an example, connect the trumpet-shaped bottom opening on the rubber suction cup 13 with the glass plate, and start the air pump to make use of the suction capacity of the air pump to form an airtight gap between the rubber suction cup 13 and the glass plate. Negative pressure chamber, so that the base 1 is sealed and connected to the glass plate, the measuring cylinder 2 is fixed on the hanger 12 by the suspension plate 3 and the connection assembly 8, and the other end of the telescopic tube 4 is connected to the one-way overflow valve 5 .

[0045] Step 2, measuring the water pressure in the hollow cavity 11 in an impermeable environment.

[0046] Open ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device and a method for detecting a water permeability coefficient of a bituminous pavement. The problem that an existing pavement water permeability instrument cannot detectpavements and bridge floors with large gradients is solved, and meanwhile, the problem that detection is inaccurate because of variation of the water permeability rate caused by variation of the liquid level height is avoided. According to the key points of the technical scheme, tThe device is characterized by comprisesing a measuring cylinder and a base provided with a hollow cavity, a pluralityof extending plates distributed on the same plane face are arranged around the outer wall of the top end of the measuring cylinder, a hanging bracket is arranged on the base, and a hanging disc allowing the measuring cylinder to penetrate through and supporting the extending plates to make the measuring cylinder be always maintained at a free falling state is hinged to the hanging bracket. A telescopic pipe being communicated with the measuring cylinder and the hollow cavity is arranged between the bottom of the measuring cylinder and the base, and a one-way overflow valve being opened to make the measuring cylinder be communicated with the hollow cavity is arranged between the base and the telescopic pipe. The purposes that the device and method can be suitable for detecting bituminous pavements with arbitrary gradients and measuring is conducted accurately are achieved.

Description

technical field [0001] The invention relates to the technical field of traffic and transportation highway engineering, in particular to a measuring device and a measuring method for the seepage coefficient of asphalt pavement. Background technique [0002] Pavement water seepage coefficient is one of the key technical indicators to measure the drainage performance of asphalt pavement and asphalt mixture. The pavement water seepage coefficient is directly related to the traffic safety of asphalt pavement in rainy days. Generally, a pavement seepage coefficient tester (also called a pavement seepage meter) is used to measure the pavement seepage coefficient. Pavement seepage coefficient is generally expressed by the volume of water infiltrated into the pavement per unit time, and its unit is generally milliliters per minute (mL / min). [0003] With the development of the transportation industry, the pavement drainage performance has been paid more and more attention. The resea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08
CPCG01N15/082
Inventor 蔡可为毛碧波乐胤生
Owner 宁波市华欣建材测试有限公司