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A method for calculating the amount of asphalt in the gravel seal

A technology of gravel sealing layer and asphalt dosage, applied in special data processing applications, geometric CAD, etc., can solve the problems of heavy workload, accuracy and rationality of correction factor selection, etc., to avoid the test process. , the calculation results are reliable, the calculation formula is simple

Active Publication Date: 2021-05-28
NANJING FORESTRY UNIV
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Problems solved by technology

It can be seen from the above calculation process that although the calculation results of this method are relatively accurate, a large number of experiments are required to determine some parameters in the formula, and more correction factors are considered, and the workload is more numerous than the former. Moreover, the experiment The accuracy and the rationality of the correction factor selection have a great influence on the final test results

Method used

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  • A method for calculating the amount of asphalt in the gravel seal
  • A method for calculating the amount of asphalt in the gravel seal
  • A method for calculating the amount of asphalt in the gravel seal

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Embodiment Construction

[0014] Below in conjunction with certain example the technical scheme of the present invention is described in detail:

[0015] The inventor has found that in the design of the gravel seal, each fine gravel can be approximately regarded as a sphere, and the unit area covered by it (1m 2 ) plane, considering a certain correction coefficient, the number of required spheres can be obtained more accurately, and then the required asphalt quality can be calculated according to the theoretical height that the asphalt needs to climb to reach. Specifically, the technical solution of the present invention is specifically as follows:

[0016] A method for calculating the amount of asphalt in the crushed stone seal layer. Each crushed stone in the crushed stone seal layer is approximately regarded as a sphere (the diameter of the sphere is taken as the median value d of the particle size range of the crushed stone, and the unit is mm). Full in the unit area (1m 2 ) plane, according to t...

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Abstract

The invention discloses a method for calculating the amount of asphalt in the gravel seal layer. It includes the following steps: each gravel in the gravel seal is approximately regarded as a sphere, and according to the maximum cross-sectional area S' of the approximate sphere, the total number N of spheres required to cover a unit area can be calculated; according to the actual situation Correct the total number N of spheres required to cover a unit area calculated in theory, and the correction coefficient is K 1 ; The gap between gravel and gravel is filled with asphalt. When the gravel is arranged approximately as a sphere, the climbing height of the asphalt is between d / 3 and d / 2 to achieve the ideal effect; then, it is calculated according to the theoretical formula The amount of bitumen used in the gravel seal. The invention effectively solves the problem of determining the amount of asphalt in the gravel seal, and can accurately and quantitatively calculate the amount of asphalt required in the seal of gravel with different particle sizes, thereby avoiding determination through tedious tests, and the calculation is simple .

Description

technical field [0001] The invention relates to a method for calculating the amount of asphalt in the gravel seal, in particular to a method for solving the inaccurate amount of asphalt in the current pavement seal, and belongs to the technical field of road pavement materials. Background technique [0002] Due to a series of excellent properties such as good waterproof performance, unique interlayer drainage function, high-strength interlayer adhesion and shear resistance, and good crack resistance, the crushed stone seal is currently widely used in my country. . In the case of a certain amount of gravel, too much asphalt will increase the cost on the one hand, and cause serious diseases such as oil flooding on the other hand. If the amount of asphalt is too small, the cohesion between the gravel and the gravel will be insufficient. It will cause problems such as broken stones falling off. Therefore, the determination of the amount of asphalt in the gravel seal is the key ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13
CPCG06F30/13
Inventor 马翔杭晨王炯月崔宇超
Owner NANJING FORESTRY UNIV
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