Feasibility Of Virtual Laboratory For Asphalt Mixtures And Pavements
- Conference
- Location
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Chicago, Illinois
- Publication Date
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June 18, 2006
- Start Date
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June 18, 2006
- End Date
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June 21, 2006
- ISSN
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2153-5965
- Conference Session
- Tagged Division
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Division Experimentation & Lab-Oriented Studies
- Page Count
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10
- Page Numbers
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11.639.1 - 11.639.10
- DOI
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10.18260/1-2--1257
- Permanent URL
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https://peer.asee.org/1257
- Download Count
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596
Paper Authors
Zhanping You Michigan Technological University
Zhanping You received his Ph.D. from University of Illinois at Urbana-Champaign in civil engineering. Dr. You is the honored Donald and Rose Ann Tomasini Assistant Professor of Transportation Engineering of the Department of Civil and Environmental Engineering at the Michigan Technological University, and serves as the Associate Director of the Transportation Materials Research Center. Dr. Zhanping You is a member of American Association of Engineering Education.
Qingli Dai Michigan Technological University
Qingli Dai received her Ph.D degree from mechanical engineering and applied mechanics of university of Rhode Island in 2004. She worked as a visiting assistant professor in Mechanical engineering of Texas A& M University-Kingsville in 2005. Recently, she moved to Michigan Technological University and work as a research assistant professor in mechanical engineering and applied mechanics.
Abstract
NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract
Feasibility of Virtual Laboratory for Asphalt Mixtures and Pavements
ABSTRACT
The objective of this study is to develop a Virtual Testing Laboratory for Asphalt Mixture (VTLAM) in senior undergraduate and graduate student education. The virtual lab is based upon computer simulation, and will be Internet supported. Therefore, in the future, students can access the lab 24-7 (24 hours a day, 7days a week) to conduct test without location limits.
In the computer program, the authors propose to simulate mixture properties using the advanced micro-fabric discrete element method. The program will employ the micro- fabric discrete element method, which has the ability to consider aggregate-aggregate contact by using the distinct/finite element method with the assistance of mixture internal microstructure. The asphalt concrete is a multiphase material which has different properties from the original components which are aggregate, mastic, and air voids. The physical properties and performance of asphalt mixture is governed by the properties of aggregate (shape, surface texture, gradation, skeletal structure -microstructure, modulus, etc.), properties of asphalt binder (grade, complex modulus, relaxation characteristics, cohesion, etc.), and asphalt-aggregate interactions (adhesion, absorption, physio-chemical interactions, etc.). The numerical analysis is based upon the microstructure components of the asphalt mixture. In addition, the aggregate, binder/mastic, and mixture properties will be provided by a database according to different aggregate types and binder grade. The authors will work with local research agencies to establish a comprehensive laboratory database.
The virtual lab will help senior and graduate students to evaluate asphalt mixture performance by calculating the material parameters. In the future, the virtual lab can be used to evaluate and predict asphalt mixture rutting, fatigue cracking, thermal cracking, and other distress. The final target is to help students and engineers in design of asphalt mixture and asphalt pavement when a fully developed virtual laboratory for Asphalt Mixture is established. It is expected that the expanded virtual lab can be used in pavement distress simulation and pavement design in the future. It is also expected that, after the completion of this lab, the education, especially distance learning will become very easy because the students can access the lab without time and location limit.
Backgrounds of Virtual Laboratory for Asphalt Mixtures and Pavements
Paving asphalt concrete is multiphase material which has different properties from the original components—aggregate, mastic, and air voids. The physical properties and performance of HMA is governed by the properties of aggregate (shape, surface texture, gradation, skeletal structure, modulus, etc.), properties of asphalt binder (grade, complex modulus, relaxation characteristics, cohesion, etc.), and asphalt-aggregate interactions (adhesion, absorption, physio-chemical interactions, etc.). The asphalt concrete pavement is a very complicate composite with a gradation of aggregate and a certain
You, Z., & Dai, Q. (2006, June), Feasibility Of Virtual Laboratory For Asphalt Mixtures And Pavements Paper presented at 2006 Annual Conference & Exposition, Chicago, Illinois. 10.18260/1-2--1257
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