Method for calculating amount of asphalt in crushed stone seal

Abstract

A method for calculating the amount of asphalt in a crushed stone seal is disclosed. The method comprise the following steps of approximately treating each crushed stone in the crushed stone seal as asphere, and calculating a total number N of spheres required to cover a unit area according to a maximum cross-sectional area S 'of the approximate sphere; according to the actual situation, correcting the total number N of spheres covering the unit area calculated by a theory, wherein the correction coefficient is K1; filling the gaps among the crushed stones with asphalt, wherein the crushed stones which are approximately spherical are arranged, the asphalt climbing height is between d / 3 ~ d / 2 and the ideal effect can be achieved; then calculating the amount of asphalt in the crushed stoneseal layer according to a theoretical formula. The invention effectively solves the problem of asphalt amount determination in the crushed stone seal, and can accurately and quantitatively calculate the asphalt amounts required in the crushed stone seals with different particle diameters, so the tedious tests are avoided, 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 ...

AI Technical Summary

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

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