Innovation in High-Performance Asphalt Mixes (HPAM) to increase the service life of flexible pavements in Canada

高性能沥青混合料 (HPAM) 创新可延长加拿大柔性路面的使用寿命

• 批准号: RGPIN-2016-04859
• 负责人: Baaj, Hassan
• 金额: $ 1.97万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=644392
• 关键词: Innovation; Performance; Asphalt; Mixes; HPAM

Transportation systems have the same importance for society that arteries, veins and nerves for the human body. Canada has a well-developed transportation system consisting of road, rail, water and air networks. However, the road network remains the most important as 90% of all goods are transported using this system. Nationwide, Canada has over 1,000,000 km of road including over 30,000 km of highway [1].***The modern road appeared with the advent of the automobile and has evolved over the years with the evolution of humanity. In recent decades, the road industry has positively changed to meet the needs of sustainable development and cost reduction. Meanwhile, the technological evolution in other transportation-related industries, such as the automotive industry and traffic control systems, has also accelerated. In this context, several international experts have started working on defining the road of the future. This road would be sustainable, resilient, connected, adaptable, self-healing, a source of energy, smart and versatile. The ideas proposed for this research program aim to advance our ability to build this road of the future.***In Canada, cracking is the most prevalent deterioration mode of pavements. It is caused by traffic loading, low temperature and can be accelerated by oxidation of the asphalt or when the asphalt material performs poorly. Four breakthrough ideas will be investigated in this research program to advance new solutions that will effectively extend the service life of pavements. Some of these innovations are inspired by the human body, specifically its capacity to adapt, evolve and heal itself. Biomimetic research has opened up new avenues of innovation for many industries, namely architecture, transportation, communication and adhesives to name but a few. The proposed program will leverage nature-inspired strategies to create a range of High-Performance Asphalt Mixes (HPAM). The use of Self-Healing Materials, Phase-Change Materials and antioxidants will be explored to reduce the risk of pavement cracking and help tomorrow's roads heal themselves. Advances in nanotechnology will also be leveraged to modify the molecular structure of the binder enabling targeting specific aspects of the binder performance and formulating HPAM with enhanced characteristics. These HPAM mixes will be tailored to resist different modes of deterioration.***Ultimately, the program will contribute to the construction of highly durable, long-lasting pavements in Canada and to a new generation of highly qualified engineers, sensitive to sustainable development and environmental issues. Fifteen graduate and undergraduate students will have the opportunity to develop technical knowledge and skills in advanced pavement materials engineering and design. They will be poised to lead the transition towards smarter and more sustainable road infrastructures in Canada and around the world.**

交通系统对于社会的重要性，就像动脉、静脉和神经对于人体的重要性一样。加拿大拥有完善的交通系统，包括公路、铁路、水路和航空网络。然而，公路网仍然是最重要的，因为90%的货物是使用该系统运输的。在全国范围内，加拿大有超过100万公里的公路，其中包括超过3万公里的高速公路[1]。*现代公路是随着汽车的出现而出现的，并随着人类的发展而不断演变。近几十年来，公路行业发生了积极的变化，以满足可持续发展和降低成本的需要。与此同时，其他与交通相关的行业，如汽车行业和交通控制系统的技术演变也加快了。在这方面，几位国际专家已开始努力确定未来的道路。这条路将是可持续的、有弹性的、互联的、适应性强的、自我修复的、一种能源、智能和多功能的。为这项研究计划提出的想法旨在提高我们建造这条未来道路的能力。*在加拿大，开裂是最普遍的路面破损模式。它是由交通荷载、低温引起的，可以通过沥青的氧化或当沥青材料性能较差时加速。这项研究计划将研究四个突破性的想法，以提出有效延长人行道使用寿命的新解决方案。其中一些创新是受到人体的启发，特别是它的适应、进化和自我治愈的能力。仿生研究为建筑、交通、通讯和粘合剂等许多行业开辟了创新的新途径。拟议的计划将利用受自然启发的战略来创建一系列高性能沥青混合料(HPAM)。将探索使用自修复材料、相变材料和抗氧化剂来降低路面裂缝的风险，并帮助明天的道路自我修复。还将利用纳米技术的进步来改变粘合剂的分子结构，从而能够针对粘合剂性能的特定方面，并配制具有增强特性的HPAM。这些HPAM混合料将量身定做，以抵御不同的恶化模式。*最终，该计划将有助于在加拿大建造高耐久、长寿命的路面，并培养对可持续发展和环境问题敏感的新一代高素质工程师。15名研究生和本科生将有机会发展先进的路面材料工程和设计方面的技术知识和技能。他们将引领加拿大和世界各地向更智能、更可持续的道路基础设施过渡。**