Rapid adjustment method of mineral aggregate gradation
A debugging method and grading technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem that synthetic grading cannot meet the requirements of specifications, and achieve the effect of convenient application and simple calculation
Active Publication Date: 2013-04-24
MAANSHAN MCC17 ENG TECH CO LTD
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Problems solved by technology
[0003] When calculating the composition of ore materials by graphic method or calculation method, the synthetic gradation often cannot meet the specification requirements even after many adjustments.
Method used
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Embodiment 1
[0026] Example 1: Now take AC-13C asphalt mixture ore gradation design as an example for illustration.
[0027] See Table 1 for the percentage of sieve residue of the sieve analysis results of various aggregates. According to the corresponding data in Table 1, the histogram of the sieve results of various aggregates is shown in the appendix. figure 1 .
[0028]
[0029] Note: Aggregate A, B aggregate and C aggregate are coarse aggregates such as crushed stones or pebbles; D aggregates are fine aggregates such as natural sand or artificial sand or stone chips; E aggregates are fine aggregates such as mineral powder
[0030] From the raw material sieve analysis results, the A aggregate with a particle size of 9.5mm plays an important role; the B aggregate with a particle size of 4.75mm plays an important role; the C aggregate with a particle size of 2.36mm plays an important role; A particle size E aggregate plays an important role. Therefore, when calculating the aggregate...
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The invention provides a rapid adjustment method of mineral aggregate gradation and belongs to the technical field of aggregate gradation. The rapid adjustment method of mineral aggregate gradation is characterized in that based on basic principles of a trial method, an arithmetic average of retained percentages of important aggregates having a certain particle size is properly adjusted so that the arithmetic average is as close as possible to a desired value of complex gradation and simultaneously, a mineral aggregate gradation standard scope is satisfied, and thus on-site rapid adjustment of a mineral aggregate mix proportion design and multi-specification aggregate complex gradation is realized. The rapid adjustment method of mineral aggregate gradation is convenient for application, has a simple calculation step, is especially suitable for temporary change of on-site materials, can realize that aggregates having different specifications meet a design value of target gradation as far as possible through simple calculation, so that the consistency of gradation of mixed mineral aggregates is guaranteed. The rapid adjustment method of mineral aggregate gradation can be widely utilized for adjustment of complex gradation of pavement bottom layers, base layers, asphalt concrete and cement concrete aggregates, and has values of general use and popularization.
Description
technical field [0001] The invention belongs to the technical field of material gradation, and in particular relates to a quick debugging method for mineral material gradation. Background technique [0002] The gradation of a natural or artificially rolled aggregate is often difficult to meet the requirements of a certain gradation range, so two or more aggregates must be synthesized to meet the requirements of the gradation range. The task of mineral mix composition design is to determine the proportion of each aggregate that makes up the mineral material. There are many methods to determine the mixing ratio of mineral materials, and they can be summarized into two categories: calculation method and graphic method. [0003] When the composition of mineral materials is solved by graphic method or calculation method, even after many adjustments, the synthetic gradation often cannot meet the specification requirements. In the calculation method, when the computer is used to ...
Claims
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IPC IPC(8): C04B18/12C04B14/02C04B14/06
CPCY02W30/91
Inventor 雷团结尹万云倪淑梅
Owner MAANSHAN MCC17 ENG TECH CO LTD