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FCE Public Lecture
Performance of Asphalt Paving Mixtures Containing Reclaimed Asphalt Pavement (RAP)
by Dr Baoshan Huang
AbstractAsphalt covers over 93% of all pavement roads in the United States. Every year over 550 million tons of asphalt paving mixtures are produced and applied on existing or newly constructed pavements in US. During the same time, over 100 million tons of reclaimed asphalt pavements (RAP) are removed from the roadways. The scale and nature of asphalt paving activities significantly influence the environments and economic well-being of our nation. The present research focused on the performance of hot-mix asphalt (HMA) and warm mix asphalt (WMA) paving mixtures containing significant inclusion of RAP materials. The effects of RAP on the efficiencies of asphalt binder blending, as well as on the durability of asphalt mixtures were investigated through chemical, and mechanical characterization of both binder and mixtures. The results of this study indicated that the inclusion of RAP would result in different effects on the crack resistance to HMA and WMA. Generally the inclusion of RAP would cause negative effects on the fatigue resistance of HMA. However, a moderate amount of RAP would help improve the fatigue resistance of WMA produced through plant foaming and surfactant additive to asphalt binder.
About the SpeakerDr Baoshan Huang is an Associate Professor (with tenure) in the Department of Civil and Environmental Engineering at the University of Tennessee – Knoxville, where he has been employed since January 2002. He earned his Bachelor’s and Master’s Degrees at Tongji University in China and a Ph.D. at Louisiana State University. His areas of research include infrastructure materials, pavement engineering, geotechnical engineering, and infrastructural asset management. Over the last nine years, he has secured over 3.8 million dollars of research funding to support his research activities. He has been actively involved in many professional committees, including the Transportation Research Board (TRB), Association of Asphalt Paving Technologists (AAPT), American Society of Civil Engineers (ASCE), and the International Society of Asphalt Pavement (ISAP). He was the chair of the ASCE Bituminous Materials Committee (BMC) during 2010 – 2012, and has been an associate editor for the ASCE Journal of Materials in Civil Engineering since 2003. Dr Huang has published over 50 (SCI and EI Indexed) journal papers and holds one US patent on innovative application of industrial waste in cementitious materials.
Date: 12 Oct 2012 (Fri)
Time: 3:45p.m. to 4:45p.m.
Venue: Room Y306, The Hong Kong Polytechnic University
Associate ProfessorDepartment of Civil and Environmental Engineering
University of Tennessee – Knoxville
All Interested Are WelcomePlease register online at http://www.polyu.edu.hk/fce/events/20121012_lecture/For enquiries, please contact Mr Carson Siu at Tel: 3400-3143 | Email: [email protected]: Free of Charge．．
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