Development of Laboratory and Field Experience Based Course in Asphalt Technology for Civil Engineering Undergraduate Students

工程-土木工程(54)项目摘要为了正确实施Superpave沥青混合料设计系统，并通过改善路面性能实现其全部效益，必须确保现场项目中的混合料生产、铺设和压实受到控制，以保持符合Superpave规范。然而，最近关于改进的配合比设计系统和质量控制技术的研究结果在很大程度上仍然不为将在不久的将来建造和维护人行道的本科生所知。目前，本科生获取现场经验和学习统计概念在沥青技术质量控制中的应用的机会严重缺乏。该项目的目标是为本科生提供现场体验沥青路面施工的工具，包括质量控制技术，并通过分析实时质量控制测试数据来教授统计质量控制的概念。需要对沥青混合料设计和施工的各个方面有透彻的了解，并有使用实时数据进行统计质量控制的经验，以了解设计和施工之间的联系，并确定路面生产、施工和使用期间的潜在问题。所要求的设备将与现有设备一起使用，以提供全面、平衡的课程，集沥青混合料的设计、生产、铺设和压实为一体。学生将使用三种设备：用于测量施工现场密度的路面质量指示器，用于生产过程中评估混合料的快速三轴装置，以及用于分析实时质量控制数据的便携式计算机。本科生将使用现场测量来获得设备操作的经验，了解正确解释测试结果和根据测试结果做出决策的技术。

Engineering - Civil (54) Project SummaryIn order to implement the Superpave asphalt mixture design system properly, and realize its full benefit through improved performance of pavements, it must be ensured that mix production, laydown and compaction in field projects are controlled to maintain compliance with Superpave specification. However, results of recent research regarding improved mix design systems and quality control techniques have remained largely unknown to undergraduate students who will be building and maintaining the pavements in near future. At present, there is a severe lack of opportunity for the undergraduate students to gain field experience and learn application of statistical concepts in quality control in asphalt technology. The objectives of this project are to provide the undergraduate students tools for field experience in asphalt pavement construction, including quality control techniques, and to teach the concepts of statistical quality control through analysis of real time quality control test data. A thorough knowledge of all aspects of asphalt mix design and construction, and an experience of using real time data for statistical quality control is needed to understand the link between design and construction, and identify potential problems during production, construction, and life of the pavement. The equipment requested will be used with the existing equipment to provide an all around well-balanced coursework, which integrates design, production, laydown and compaction of asphalt mixtures. Three pieces of equipment will be used by the students: the pavement quality indicator for measuring in-place density during construction, the rapid triaxial device for evaluating mixes during production, and portable computers with statistical software for analyzing real time quality control data. The undergraduate students will use the in-place measurements to gain experience in operation of equipment, understand techniques of proper interpretation of test results and making decisions based on test results.