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| 1 | Microstructural and rheologicalinvestigation of asphalt mixtures containing recycled asphaltmaterials 显示文摘 | AUGUSTO CANNONE FALCHETTO ANTONIO MONTEPARA GABRIELE TEBALDI | 2012 | Construction and Building Materials2012，35，2： | 1 |
| 2 | Influence of computation algorithm on the accuracy of rut depth measurement显示文摘Rutting is one of the dominant pavement distresses,hence,the accuracy of rut depth measurements can have a substantial impact on the maintenance and rehabilitation(M &R) strategies and funding allocation.Different computation algorithms such as straightedge method and wire line method,which are based on the same raw data,may lead to rut depth estimation which are not always consistent.Therefore,there is an urgent need to assess the impact of algorithm types on the accuracy of rut depth computation.In this paper,a 13-point-based laser sensor detection technology,commonly accepted in China for rut depth measurements,was used to obtain a database of 85,000 field transverse profiles having three representative rutting shapes with small,medium and high severity rut levels.Based on the reconstruction of real transverse profiles,the consequences from two different algorithms were compared.Results showed that there is a combined effect of rut depth and profile shape on the rut depth computation accuracy.As expected,the difference between the results obtained with the two computation methods increases with deeper rutting sections:when the distress is above 15 mm(severe level),the average difference between the two computation methods is above 1.5 mm,normally,the wire line method provides larger results.The computation suggests that the rutting shapes have a minimal influence on the results.An in-depth analysis showed that the upheaval outside of the wheel path is a dominant shape factor which results in higher computation differences. | Di Wang Augusto Cannone Falchetto Matthias Goeke Weina Wang Tiantian Li Michael P.Wistuba | 2017 | Journal of Traffic and Transportation Engineering(English Edition)2017，4，2： | 0 |
| 3 | 多孔沥青混合料堵塞规律离散元仿真显示文摘为揭示多孔沥青混合料孔隙堵塞机理,开展了多孔沥青混合料堵塞模型试验与仿真模拟结合研究;基于电子计算机断层扫描与离散元软件PFC3D V5.0分析了多孔沥青混合料孔隙特征,得到了多孔沥青混合料的孔隙数据;在PFC3D V5.0中投放各粒径集料并根据孔隙特征生成压实虚拟试件,以MATLAB切片对比实际试件孔隙图像验证模型准确性;在自重条件下设置特定级配组成堵塞物侵入多孔沥青混合料试件模拟仿真,并以室内试验结果对照验证,改变投放堵塞物粒径,分析了试件孔隙衰变率,找出了堵塞敏感颗粒;在自重条件下引入流体模拟仿真试验,改变了流体渗流速度,分析了试件堵塞变化规律。研究结果表明:PFC3D V5.0生成的虚拟试件具备较高的精确度,仿真揭示了试件堵塞规律,小颗粒除堆积于喉孔处产生堵塞外,还会在嵌挤成型后与大粒径颗粒积聚产生堵塞;自重条件下的堵塞主要集中在混合料试件上层30 mm处,相应堵塞敏感颗粒粒径分布为0.150~0.600 mm,堵塞颗粒粒径分布对堵塞结果影响较大;在重力与流体条件下,随着渗流速度从0.005 m·s^(-1)增加到0.030 m·s^(-1),孔隙衰变率变化速度增加,残留在混合料内部的堵塞物减少,孔隙衰变率减小,排水沥青路面在设计与养护时也需将当地降雨条件带入考虑。 | 何亮 周子栋 VAN DEN BERGH Wim BALIEU Romain CANNONE FALCHETTO Augusto 朱继青 ALEXIADIS Alessio KOWALSKI Karol VALENTIN Jan 蔡皓东 李后君 乔亚宁 | 2023 | 交通运输工程学报2023，23，2： | 0 |
| 4 | Experimental investigation of asphalt mixture containing Linz-Donawitz steel slag显示文摘Standard asphalt mixtures for road infrastructures consist of natural aggregate and bitumen. A number of research efforts have successfully investigated the possibility of replacing the conventional aggregate skeleton with industrial by-products such as slag originating from steel production process. However, little is known on the effect of steel slag on the mixtures performance properties such as resistance to low-temperature cracking and to permanent deformation, stiffness and fatigue. This paper presents a comprehensive investigation on the fundamental performance properties of different types of asphalt mixtures prepared with 100% LD slag aggregate and a conventional asphalt mixture containing natural Gabbro aggregate. Sophisticated testing methods were used to evaluate the key performance parameters for the set of asphalt mixtures investigated. In this study, low temperature cracking was addressed through thermal stress restrained specimen tests. Penetration tests and cyclic compression tests were used to evaluate the response of asphalt binder and asphalt mixture to permanent deformation due repeated loading, respectively. The cyclic indirect tensile test was selected for investigating both stiffness properties and fatigue resistance. For this purpose the complex stiffness modulus was measured to quantify material stiffness under different temperature and loading conditions providing information on the visco-elasto-plastic material behavior. Fatigue tests were used to determine the progressive and localized material damage caused by cyclic loading. The experimental results indicate that asphalt mixtures prepared with LD slag are suitable for asphalt pavement construction and that in most cases they perform better than conventional asphalt mixtures prepared with Gabbro aggregate. | Jens Groenniger Augusto Cannone Falchetto Ivan Isailovic Di Wang Michael P. Wistuba | 2017 | Journal of Traffic and Transportation Engineering(English Edition)2017，4，4： | 0 |
| 5 | Review of advanced road materials, structures, equipment, and detection technologies显示文摘As a vital and integral component of transportation infrastructure,pavement has a direct and tangible impact on socio-economic sustainability.In recent years,an influx of groundbreaking and state-of-the-art materials,structures,equipment,and detection technologies related to road engineering have continually and progressively emerged,reshaping the landscape of pavement systems.There is a pressing and growing need for a timely summarization of the current research status and a clear identification of future research directions in these advanced and evolving technologies.Therefore,Journal of Road Engineering has undertaken the significant initiative of introducing a comprehensive review paper with the overarching theme of“advanced road materials,structures,equipment,and detection technologies”.This extensive and insightful review meticulously gathers and synthesizes research findings from 39 distinguished scholars,all of whom are affiliated with 19 renowned universities or research institutions specializing in the diverse and multidimensional field of highway engineering.It covers the current state and anticipates future development directions in the four major and interconnected domains of road engineering:advanced road materials,advanced road structures and performance evaluation,advanced road construction equipment and technology,and advanced road detection and assessment technologies. | JRE Editorial Office Maria Chiara Cavalli De Chen Qian Chen Yu Chen Augusto Cannone Falchetto Mingjing Fang Hairong Gu Zhenqiang Han Zijian He Jing Hu Yue Huang Wei Jiang Xuan Li Chaochao Liu Pengfei Liu Quantao Liu Guoyang Lu Yuan Ma Lily Poulikakos Jinsong Qian Aimin Sha Liyan Shan Zheng Tong B.Shane Underwood Chao Wang Chaohui Wang Di Wang Haopeng Wang Xuebin Wang Chengwei Xing Xinxin Xu Min Ye Huanan Yu Huayang Yu Zhe Zeng You Zhan Fan Zhang Henglong Zhang Wenfeng Zhu | 2023 | Journal of Road Engineering2023，3，4： | 0 |
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