Portable simulation water seepage performance testing instrument and use method thereof

A portable and measuring instrument technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum, measuring devices, scientific instruments, etc., can solve the problem that the exhaust port cannot well indicate the start time of water infiltration into the asphalt pavement, and the beginning of water infiltration It is difficult to determine the time of entering the road surface, and air bubbles affect the determination of water seepage coefficient, etc., to achieve the effects of avoiding errors, accurate measurement, and easy operation

CN107515182AActive Publication Date: 2017-12-26JSTI GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-12-26

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Abstract

The invention discloses a portable simulation water seepage performance testing instrument, which comprises a base, a measuring tube, an air pressure slide block, an air pressure control device and a distance measuring module, wherein the base is used for realizing the sealing through contacting with the pavement to be tested; the measuring tube is arranged at the upper part of the base, and is connected with the base through a ventilation pipe; a ventilation switch is arranged on the ventilation pipe; the air pressure slide block is arranged inside the measuring tube and is vertical to the side wall of the measuring tube; the air pressure slide block and the side wall of the measuring tube are in a moving sealing state; the air pressure control device is arranged at the upper part of the measuring tube, and is used for controlling the air entering quantity of the upper part of the air pressure slide block in the measuring tube; the distance measuring module is used for measuring the used time and the displacement of the air pressure slide block in the measuring tube; the measuring tube is a sealed tube; an upper part air inlet is connected with the outside through an air pressure control device; a lower part air outlet is connected with outside air through the ventilation pipe. The air is used for replacing conventional water to be used as a test flow seepage carrier; the precise measurement of the water seepage performance of the large-porosity open-graded pavement can be performed.
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Description

technical field

[0001] The invention relates to the field of road engineering detection, in particular to a water seepage performance tester and a method for using the same. Background technique

[0002] With the continuous improvement of the road construction level in our country, the quality requirements for asphalt pavement are becoming more and more stringent. 》A pavement water seepage meter is usually used to know the road compaction status by measuring the water seepage of the road surface per unit time.

[0003] However, the traditional water infiltration meter will encounter residual air in the cavity of the bottom sealing ring during use, which will affect the measurement results. When the infiltration meter performs actual measurement, the water flow will first fill this part of the gap, and then penetrate into the asphalt surface. In order to eliminate the problem of large errors in measurement data caused by gas residues, most of the improved water seepage meter...

Examples

Embodiment Construction

[0050] In order to further explain the technical means and efficacy adopted by the present invention to achieve the intended invention purpose, the specific implementation, features and efficacy of the portable simulated water seepage performance tester and its use method proposed according to the present invention are described in detail below.

[0051] Such as Figure 1-7 As shown, the present invention discloses a portable simulated water seepage performance tester, comprising: a base 10, which is used to contact with the road surface to be tested to achieve sealing; 8 is connected, and the ventilation pipe 8 is provided with a ventilation switch, and the closure of the ventilation pipe 8 is realized through the ventilation switch; the air pressure slider 14 is arranged inside the measuring cylinder 13 and is perpendicular to the side wall of the measuring cylinder 13, and the air pressure slider 14 and the measurement The side walls of the cylinder 13 are movable seals; th...