A rapid scraping device for sealing material in asphalt pavement water seepage coefficient test
A technology of sealing materials and water permeability coefficient, which is applied in the direction of measuring devices, analysis materials, suspensions and porous materials analysis, etc., can solve the problems that affect the test accuracy and efficiency, uneven thickness of sealing rings, and difficult ring sealing areas, etc., to achieve improvement Environmental protection performance, consumption saving, and the effect of improving success rate
Active Publication Date: 2022-05-10
天津市交通科学研究院
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Problems solved by technology
[0003] At present, in the water seepage coefficient test of asphalt pavement, the water seepage area is controlled by drawing circles on the inside and outside of the plastic ring and then manually scraping the sealing material, but it is difficult to make an accurate annular sealing area by manually scraping the sealing material. The material will accidentally enter the inner ring, resulting in a decrease in the water seepage area, and sometimes the lack of sealing material on the edge of the inner ring leads to an increase in the water seepage area; and the manual rubbing process will pollute the hands, and the thickness of the sealing ring produced is uneven, which will easily cause pressure water to leak from the base If it flows out between the surface and the road surface, it needs to be retested in a nearby dry place, which will eventually affect the accuracy and efficiency of the test
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[0026] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.
[0027] A rapid scraping device for sealing material in the water seepage coefficient test of asphalt pavement, which includes an outer casing assembly, an inner casing assembly, a rotating mechanism, and a sealing material scraping mechanism. Pedal 13; observation hole 5 is provided on the upper part of outer casing 15. The upper part of the shell assembly is provided with a rotating mechanism, which includes a motor 3, a reducer 4, a control switch 19, an output shaft 18, and a handle 2. The control switch 19 can adjust the rotating speed of the motor 3 . The inner shell assembly is arranged inside the outer shell assembly, and the sealing material scraping mechanism is located between the outer shell assembly and the inner shell assembly....
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The invention relates to a rapid scraping device for sealing material in the water seepage coefficient test of asphalt pavement, which includes an outer casing assembly, an inner casing assembly, a rotating mechanism, and a sealing material scraping mechanism. The inner casing assembly is arranged inside the structure, and the sealing material scraping mechanism is located between the outer casing assembly and the inner casing assembly. The sealing material scraping mechanism is connected with the rotating mechanism through a rotating shaft, and the sealing material scraping mechanism is driven by the rotating mechanism. Rotating around the shaft, the inner shell assembly includes an inner shell, a compression discharge mechanism and a base, and the inner shell is provided with a sealing material discharge hole. The invention has a scientific and reasonable structural design, realizes the purpose of quickly and accurately scraping and coating the annular sealing area, and effectively improves the efficiency and the accuracy of the results of the water seepage coefficient test of the asphalt pavement.
Description
technical field [0001] The invention relates to the technical field of water seepage coefficient test of asphalt concrete pavement in road engineering, in particular to a rapid scraping device for sealing material in the test of water seepage coefficient of asphalt pavement. Background technique [0002] The water seepage performance of asphalt pavement is an indirect index reflecting the gradation composition of asphalt mixture on pavement, and it is also an important index of water stability of asphalt pavement. The water seepage coefficient test of asphalt pavement is to measure the water seepage per unit time of a circular area with a diameter of 150mm. The test procedure in the "Highway Subgrade Pavement Field Test Regulations" is as follows: First, place a plastic ring with an inner diameter of 150mm and an outer diameter of 220mm on the measuring point, use chalk to draw circles along the inner and outer sides of the plastic ring, and place a circle between the outer ...
Claims
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IPC IPC(8): G01N15/08
CPCG01N15/0806
Inventor 兰云松啜二勇刘永江李长旺黄桂东孙建勇刘路姬玉平杨全霞高菲范旭李金泉张玺民
Owner 天津市交通科学研究院