Rolling compaction process based on asphalt mixed material compaction characteristic

A technology of asphalt mixture and solid characteristics, which is applied in the field of coagulation pavement, roads, climate change adaptation, etc. Influence and other problems, to achieve the effect of easy guarantee of compaction, increase of initial compaction, and increase of appearance temperature

Inactive Publication Date: 2017-11-24
天津市国腾公路咨询监理有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This rolling process does not consider the impact of the type of mixture and environmental factors on the rolling effect. At the same time, under low temperature conditions, it is difficult to ensure that the rolling temperature of re-pressing and final pressing can meet the requirements.

Method used

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  • Rolling compaction process based on asphalt mixed material compaction characteristic
  • Rolling compaction process based on asphalt mixed material compaction characteristic
  • Rolling compaction process based on asphalt mixed material compaction characteristic

Examples

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Embodiment Construction

[0053] 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.

[0054] A rolling process based on the compaction characteristics of asphalt mixture, comprising the steps of:

[0055] 1. Determine the initial pressure temperature of asphalt mixture:

[0056] Determine the initial pressure temperature of asphalt mixture according to actual engineering experience or viscosity-temperature curve.

[0057] The asphalt mixture is rubber powder modified asphalt mixture, and the initial pressure temperature is set at 170°C based on actual engineering experience.

[0058] The initial pressure temperature of SBS I-D modified asphalt mixture is set at 170°C according to actual engineering experience.

[0059] The initial pressure temperature of 70A road petroleum asphalt mixture is determined according to the visc...

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Abstract

The invention relates to a rolling compaction process based on asphalt mixed material compaction characteristic. The rolling compaction process comprises the following steps: 1) determining the inserting pressing temperature of the asphalt mixed material; 2) determining the final pressing temperature of the asphalt mixed material by a compaction characteristic experimental method; 3) determining the effective rolling compaction time; 4) determining the rolling compaction mode; and 5) determining rolling compaction parameters. The invention provides the rolling compaction process capable of guaranteeing complete compaction of the asphalt mixed material by considering the compaction characteristic of the asphalt mixed material and the temperature field change rule and by reasonably determining the final pressing temperature of the asphalt mixed material and the effective compaction time so as to guarantee that the compaction degree meets the requirements.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement rolling technology, in particular to a rolling technology based on the compaction characteristics of asphalt mixture. Background technique [0002] Early damage to asphalt pavement in our country is often caused by insufficient compaction. Improving the compaction process and ensuring sufficient compaction of the mixture is the key to improving the quality of asphalt pavement construction. At present, in order to improve the performance of asphalt pavement and reduce early damage, a number of new technologies have been promoted and used, including Superpave and GTM asphalt mixture design methods, warm mix asphalt mixture technology, asphalt pavement regeneration technology, etc. New materials such as asphalt and SBS modified asphalt have been widely used. [0003] How to successfully apply new materials and new technologies to asphalt pavement, the construction technology and quality co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/22E01C19/23
CPCE01C7/22E01C19/23Y02A30/30
Inventor 姜祎叶强蔺凤宇张达王奇奇
Owner 天津市国腾公路咨询监理有限公司
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