Matching method for mixture mix ratio at regenerative microcapsule position based on torsional shear test

A technology of micro-surface mixing and mixing ratio, which is applied in data processing applications, instruments, roads, etc., to achieve the effect of excellent road performance and good promotion value

Active Publication Date: 2016-08-17
云南交投集团公路建设有限公司 +1
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  • Application Information

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Problems solved by technology

Due to the extremely high requirements of micro-surfacing on its constituent materials, the research direction of this industry mainly focuses on the firmness and wear resistance of stone materials, the

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  • Matching method for mixture mix ratio at regenerative microcapsule position based on torsional shear test
  • Matching method for mixture mix ratio at regenerative microcapsule position based on torsional shear test
  • Matching method for mixture mix ratio at regenerative microcapsule position based on torsional shear test

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Embodiment Construction

[0028] The present invention will now be further described in conjunction with the embodiments and accompanying drawings, but the present invention is not limited to the following embodiments.

[0029] 1. The gradation type selected in this embodiment is MS-Ⅲ, and its maximum particle size is 9.5 mm. Use a 9.5 mm standard sieve to screen out super-sized particles.

[0030] 2. Determine the gradation of RAP material ore through the combustion furnace method and sieving test, as shown in Table 1:

[0031] Table 1 Gradation of RAP material ore

[0032]

[0033] The bitumen content of the RAP material is 4.3%.

[0034] 3. Target grading is shown in Table 2.

[0035] Table 2 MS-Ⅲ target gradation

[0036]

[0037] The target gradation and RAP material gradation are shown in Table 3 below for the sieve residue and the corresponding sieve hole ratio.

[0038] Table 3 Screening Summary Results Table

[0039]

[0040] The minimum ratio in Table 3 is 54%, and it is determi...

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Abstract

The invention provides a matching method for a mixture mix ratio at a regenerative microcapsule position based on torsional shear test. The invention belongs to the technical field of road maintenance engineering technology, and particularly relates to a matching method for the mixture mix ratio at the regenerative microcapsule position based on the torsional shear test. The method comprises the following steps of 1, screening over-particle-diameter particles in RAP according to the type of the selected microcapsule position; 2, determining mineral aggregate gradation and cold asphalt content of the RAP material; 3, determining the proportions of the RAP material and new aggregate according to the target gradation at the selected microcapsule position, RAP material mineral aggregate gradation and an old material mixing ratio; 4, selecting modified emulsified bitumen in an optimizing manner; 5, testing workability; 6, determining an oil amount range; 7, defining an optimal asphalt amount; and determining the mix ratio of the mixture at the regenerative microcapsule position. According to the matching method, the RAP material can be reasonably utilized at the regenerative microcapsule position for obtaining the mixture with excellent pavement performance at the regenerative microcapsule position, and therefore the matching method has high popularization value.

Description

technical field [0001] The invention belongs to the technical field of road engineering maintenance engineering, and in particular relates to a method for designing the mixing ratio of recycled micro-surface mixtures based on torsional shear tests. Background technique [0002] With the rapid development of my country's transportation industry, a network of trunk roads with expressways as the skeleton has basically formed, and the mileage of highways has continued to increase. A large number of asphalt pavements have entered the renovation stage. The large amount of old materials that have been repaired are not only difficult to pile up, but also cause serious pollution to soil and water sources if they are not handled properly. Therefore, how to deal with old pavement materials is an urgent need for road construction in my country. The problem. The pavement recycling technology currently adopted in my country has defects such as low utilization rate of old materials, insuff...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/26E01C19/02
CPCG06Q10/04G06Q50/26E01C19/1068
Inventor 李国锋郝培文蒋鹤刘刚王春李树繁严恒唐江沈盼李佳佳李昌洲李爱民
Owner 云南交投集团公路建设有限公司
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