Journal of Road Engineering最新文献

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IF 8.6

Journal of Road Engineering

Pub Date : 2025-01-01

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IF 8.6

Journal of Road Engineering

Pub Date : 2025-01-01

引用次数: 0

IF 8.6

Journal of Road Engineering

Pub Date : 2025-01-01

引用次数: 0

IF 8.6

Journal of Road Engineering

Pub Date : 2025-01-01

引用次数: 0

IF 8.6

Journal of Road Engineering

Pub Date : 2025-01-01

引用次数: 0

IF 8.6

Journal of Road Engineering

Pub Date : 2025-01-01

引用次数: 0

Review on the properties and mechanisms of asphalt modified with bio-oil and biochar 生物油和生物炭改性沥青的性能及机理研究进展

Journal of Road Engineering

Pub Date : 2024-12-01 DOI: 10.1016/j.jreng.2024.06.001

Xinxing Zhou , Ziyang Zhang , Haopeng Wang , Meizhu Chen , Shaopeng Wu , Song Xu , Xinglin Zhou , Maoping Ran , Linglin Li , Guangjun Lu , Zhibin Ma

Bio-asphalt has a great application prospect in the replacement of petroleum-based asphalt to pave and maintain asphalt pavement. However, the problems of flow-induced crystallization and phase separation caused by flow-induced crystallization had severely restricted its application. This paper describes the progress of research on preparation, property evaluation and phase separation mechanism of bio-asphalt. The advantages and disadvantages of preparation methods of bio-asphalt are states. The fundamental physical and rheological properties of bio-asphalt are investigated, especially for flow-induced crystallization. There exists obvious flow-induced crystallization because bio-asphalt is rich in waxes that crystallize easily. Owing to the existence of excess biochar, bio-asphalt appears phase separation. A brief review of the effect of bio-oil and biochar on asphalt volatile organic compounds (VOCs) is presented. Research find that bio-oil/biochar are not only replenish the light components of asphalt, but also improve the flow-induced crystallization and phase separation of bio-asphalt. There exists synergistic effect of biochar and bio-oil in asphalt modification. Moreover, biochar can improve the durability of bio-oil modified asphalt, but excessive addition of biochar to bio-oil modified asphalt can cause phase separation. Adding an appropriate amount of bio-oil and biochar to asphalt can improve its high-temperature resistance, low-temperature crack resistance, and system compatibility.

生物沥青在替代石油基沥青铺装和养护沥青路面方面具有很大的应用前景。然而，流致结晶和流致结晶引起的相分离问题严重制约了其应用。介绍了生物沥青的制备、性能评价和相分离机理等方面的研究进展。生物沥青的制备方法有其优缺点。研究了生物沥青的基本物理和流变特性，特别是流动诱导结晶。由于生物沥青富含易结晶的蜡，因此存在明显的流致结晶现象。由于过量生物炭的存在，生物沥青出现相分离现象。综述了生物油和生物炭对沥青挥发性有机物（VOCs）的影响。研究发现，生物油/生物炭不仅补充了沥青的轻组分，而且改善了生物沥青的流动诱导结晶和相分离。生物炭与生物油在沥青改性中存在协同效应。此外，生物炭可以提高生物油改性沥青的耐久性，但生物油改性沥青中添加过多的生物炭会导致相分离。在沥青中加入适量的生物油和生物炭可以提高沥青的耐高温性、耐低温开裂性和体系相容性。

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引用次数: 0

Effectiveness of heat-reflective asphalt pavements in mitigating urban heat islands: A systematic literature review 热反射沥青路面缓解城市热岛的有效性：系统的文献综述

Journal of Road Engineering

Pub Date : 2024-12-01 DOI: 10.1016/j.jreng.2024.04.008

Tracy Leh Xin Wong , Ewe Loon Lim , Mohd Rosli Mohd Hasan , Oumar Orozi Sougui , Abdalrhman Milad , Xin Qu

Urban heat island (UHI) effect is a growing concern in numerous cities worldwide, which increases urban temperatures. Conventional asphalt pavements are a major contributor to the issue, causing environmental and health concerns. To tackle this issue, the implementation of cool pavements such as heat-reflective asphalt pavements has been introduced. This systematic literature review (SLR) thoroughly examines prior research to assess the effectiveness of heat-reflective asphalt pavements in reducing UHI effects. This SLR was conducted in accordance with the preferred reporting items for systematic review and meta-analysis (PRISMA) guidelines to enhance data reliability and minimize bias. This review process involved establishing review protocol, formulating review questions, systematically selecting articles through identification, screening, eligibility, quality appraisal, and data abstraction and analysis from various databases such as Scopus, Web of Science (WoS), Wiley, Taylor Francis, and ScienceDirect. Three primary themes and nine sub-themes were derived from the three review questions. From the results, heat-reflective asphalt pavements effectively minimized the UHI effect. However, their efficiency varies depending on factors such as pavement types, paving location, and use of cool materials. A comprehensive analysis examined heat-reflective pavement's mechanisms, benefits, and drawbacks. This investigation aimed to enhance comprehension and establish a robust basis for future studies in this field.

城市热岛效应（UHI）在全球许多城市日益受到关注，它使城市温度升高。传统的沥青路面是造成这个问题的主要原因，引起了环境和健康问题。为了解决这个问题，我们引入了冷却路面，如热反射沥青路面。这个系统的文献回顾（SLR）彻底检查了先前的研究，以评估热反射沥青路面在减少城市热岛效应方面的有效性。该SLR按照系统评价和荟萃分析（PRISMA）指南的首选报告项目进行，以提高数据可靠性并尽量减少偏倚。这一审查过程包括建立审查方案，制定审查问题，通过鉴定、筛选、合格性、质量评估以及从各种数据库（如Scopus、Web of Science （WoS）、Wiley、Taylor Francis和ScienceDirect）中提取和分析数据，系统地选择文章。三个审查问题衍生出三个主要主题和九个次级主题。从结果来看，热反射沥青路面有效地减少了热岛效应。然而，它们的效率取决于诸如路面类型、铺装位置和冷却材料的使用等因素。一项全面的分析研究了热反射路面的机理、优点和缺点。本研究旨在增进对该领域的理解，并为今后的研究奠定坚实的基础。

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引用次数: 0

Investigation of indoor and field tests on asphalt pavement with inverted asphalt layers based on the vertical vibration compaction method 基于垂直振动压实法的倒置沥青层沥青路面室内和现场试验研究

Journal of Road Engineering

Pub Date : 2024-12-01 DOI: 10.1016/j.jreng.2024.01.007

Yong Yi , Yingjun Jiang , Tian Tian , Yu Zhang , Jiangtao Fan , Chenfan Bai , Changqing Deng

An inverted asphalt pavement is created by reversing the sequence of the lower and middle layers in a conventional asphalt pavement. The lower layer is composed of material with larger particle size and lower asphalt content, which improves its ability to withstand deformation caused by rutting. On the other hand, the middle surface has a higher asphalt content, specifically designed to resist fatigue cracking. This paper examines the mechanical response of two pavement structures and investigates the potential of two measures, inverted asphalt pavement and asphalt mixture design by vertical vibration compaction method (VVCM), in reducing stresses and stress levels in asphalt pavements. Additionally, a large thickness rutting and fatigue test method was developed to study the rutting resistance and fatigue life of the pavement structures, and to construct rutting deformation and fatigue life prediction models. Finally, test sections were paved to verify the feasibility of the inverted pavement and VVCM materials. The findings show that inverted pavement and VVCM materials have a minimal impact on pavement stress, but can reduce pavement shear and tensile stress levels by up to 18%–25%. Furthermore, inverted pavement and VVCM materials have positive effects on improving the rutting resistance and fatigue life of asphalt pavements.

倒置沥青路面是通过反转传统沥青路面的下层和中间层的顺序而形成的。下层由粒径较大、沥青含量较低的材料组成，提高了其承受车辙引起的变形的能力。另一方面，中间表面沥青含量较高，专门设计用于抵抗疲劳开裂。本文研究了两种路面结构的力学响应，并探讨了倒置沥青路面和垂直振动压实法（VVCM）设计沥青混合料两种措施在减少沥青路面应力和应力水平方面的潜力。建立了大厚度车辙疲劳试验方法，研究了路面结构的抗车辙性能和疲劳寿命，建立了车辙变形和疲劳寿命预测模型。最后进行了试验路段的铺设，验证了倒置路面和VVCM材料的可行性。研究结果表明，倒置路面和VVCM材料对路面应力的影响最小，但可以降低路面剪应力和拉应力水平高达18%-25%。此外，倒置路面和VVCM材料对提高沥青路面的抗车辙性和疲劳寿命有积极的作用。

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引用次数: 0

A review of road 3D modeling based on light detection and ranging point clouds 基于光探测和测距点云的道路三维建模研究进展

Journal of Road Engineering

Pub Date : 2024-12-01 DOI: 10.1016/j.jreng.2024.04.009

Bin Yu, Yuchen Wang, Qihang Chen, Xiaoyang Chen, Yuqin Zhang, Kaiyue Luan, Xiaole Ren

Increasing development of accurate and efficient road three-dimensional (3D) modeling presents great opportunities to improve the data exchange and integration of building information modeling (BIM) models. 3D modeling of road scenes is crucial for reference in asset management, construction, and maintenance. Light detection and ranging (LiDAR) technology is increasingly employed to generate high-quality point clouds for road inventory. In this paper, we specifically investigate the use of LiDAR data for road 3D modeling. The purpose of this review is to provide references about the existing work on the road 3D modeling based on LiDAR point clouds, critically discuss them, and provide challenges for further study. Besides, we introduce modeling standards for roads and discuss the components, types, and distinctions of various LiDAR measurement systems. Then, we review state-of-the-art methods and provide a detailed examination of road segmentation and feature extraction. Furthermore, we systematically introduce point cloud-based 3D modeling methods, namely, parametric modeling and surface reconstruction. Parameters and rules are used to define model components based on geometric and non-geometric information, whereas surface modeling is conducted through individual faces within its geometry. Finally, we discuss and summarize future research directions in this field. This review can assist researchers in enhancing existing approaches and developing new techniques for road modeling based on LiDAR point clouds.

准确、高效的道路三维（3D）建模技术的不断发展为改善建筑信息建模（BIM）模型的数据交换和集成提供了巨大的机会。道路场景的3D建模对于资产管理、建设和维护至关重要。光探测和测距（LiDAR）技术越来越多地用于生成高质量的点云，用于道路清单。在本文中，我们专门研究了激光雷达数据在道路3D建模中的使用。本文旨在对现有的基于LiDAR点云的道路三维建模工作提供参考，对其进行批判性的讨论，并为进一步的研究提出挑战。此外，我们还介绍了道路建模标准，并讨论了各种激光雷达测量系统的组成、类型和区别。然后，我们回顾了最先进的方法，并提供了详细的道路分割和特征提取的检查。系统介绍了基于点云的三维建模方法，即参数化建模和曲面重建。参数和规则用于基于几何和非几何信息定义模型组件，而表面建模则通过其几何中的单个面进行。最后，对该领域未来的研究方向进行了讨论和总结。本文综述有助于研究人员改进现有方法和开发基于激光雷达点云的道路建模新技术。

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