道路高性能沥青超薄磨耗层技术研究与应用现状

来源期刊:中南大学学报(自然科学版)2021年第7期

论文作者:于华洋 虞将苗 杨倪坤

文章页码:2287 - 2299

关键词:沥青超薄磨耗层;原材料设计;薄层路面结构;路用性能

Key words:asphalt ultra-thin wear layer; material design; thin pavement structure; road performance

摘    要:基于国内外沥青超薄磨耗层技术的发展动态,结合设计理念、功能定位对其进行简要分类;针对超薄磨耗层厚度减薄的特点,总结并提出超薄磨耗层混合料的原材料要求,阐述基于功能需求下的超薄磨耗层路面结构设计,并介绍SMA-10,NovaChip和GT-8等现阶段3种典型沥青超薄罩面技术。沥青超薄罩面虽然可以有效降低管养成本,但仍存在材料要求高、技术标准缺失、施工难度大等问题。基于此,对超薄磨耗层的性能评价指标展开讨论,并提出沥青超薄磨耗层的未来发展趋势。

Abstract: First, a classification study for asphalt ultra-thin wear layer technology was implemented, not only based on its development trends at home and abroad, but also combined with its design concepts and functional positioning. Second, the raw material requirements of ultra-thin wear layer mixture were proposed based on the characteristics of ultra-thin wear layer thickness reduction. Then the structure design of ultra-thin wear layer pavement was described based on functional requirements, and three typical ultra-thin asphalt overlay technologies at this time were introduced, such as SMA-10, NovaChip and GT-8. Although the ultra-thin asphalt overlay can effectively reduce the cost of maintenance, there were still problems such as high material requirements, lack of technical standards, and difficulty in construction. Thus, the performance evaluation index of ultra-thin wear layer was discussed and the future development trend of asphalt ultra-thin wear layer was put forward.

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