SPTC Seminar Series

Attending an SPTC Seminar is an excellent way to stay informed and earn professional development hours. Information on upcoming seminars will be posted when available.

December 1, 2017

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Title: Performance Evaluation and Mix Design Aspects of Foamed WMA Containing RAP

Friday, December 1st, 8:30 - 10:00 AM
ODOT Commission Room, 200 NE 21st St, Oklahoma City, OK 73105

Presenter: Manik Barman, Rouzbeh Ghabchi, Amir Arshadi, Musharraf Zaman, and Mohammad Ashiqur Rahman

ABSTRACT: In recent years, applications of warm mix asphalt (WMA) technologies and reclaimed asphalt pavement (RAP) have become increasingly popular because of their economic and environmental benefits. However, because of the lack of proper specifications, paving industries often design WMAs using the specifications that were developed for hot mix asphalt (HMA). To address the aforementioned concern, the University of Oklahoma (OU), ODOT and SPTC took an initiative to develop a special provision for designing foamed-based WMA especially when the mixture contains RAP. In order to achieve this goal, a series of laboratory tests were conducted on laboratory
and plant-produced foamed-WMA and HMA mixes, in addition to testing of field cores. This workshop will discuss the results of this ongoing study, specifically on the following aspects: (a) mix design issues for the WMA; and (b) performance difference of HMA and WMA mixes produced using the HMA mix design procedure; and (iii) WMA produced using a modified procedure intended for adopting in the WMA mix design special provision.

Attendees will earn 1.5 professional development hours (PDHs). You must register with your own email to receive your PDH.

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Click here to register!

Title: SPTC - ODOT Workshop on: Selection and Evaluation of Tack Coats in Oklahoma

Friday, December 1st, 10:15 - 11:45 AM
ODOT Commission Room, 200 NE 21st St, Oklahoma City, OK 73105

Presenter: Rouzbeh Ghabchi, Musharraf Zaman, and Shivani Rani

ABSTRACT: Tack coats are commonly used to enhance the durability of layered asphalt pavement structure by sealing and improving the adhesion at layers’ interface. A low or excessive application rate of a tack coat can reduce the pavement life and increase the maintenance cost. The purpose of this workshop is to present the outcomes of a project conducted at the University of Oklahoma to evaluate the effects of tack coat types, their application rates, and surface condition on the interlayer shear strength. The presentation will be followed by questions and discussions.

Attendees will earn 1.5 professional development hours (PDHs). You must register with your own email to receive your PDH.


Seminar Archive

This archive includes all previous seminars, including PDF presentation files and photos.

11/9/17 Chemomechanical behavior of multiphasic porous media: Conception and formulation, Changfu Wei

11/8/17 Climate and Transportation Seminar Series - Consideration of Climate in Prioritizing Bridge Maintenance and Repair, Royce Floyd, OU

6/30/17 Effect of WMA and Anti-Stripping Additives on PPA-Modified Binder, Rouzbeh Ghabchi, Musharraf Zaman, and Shivani Rani, ODOT, OU

6/30/2017 Applicability of MSCR Grading of Polymer- and RAP-Modified Binders, Rouzbeh Ghabchi, Musharraf Zaman, and Shivani Rani, ODOT, OU

4/18/2017 Climate and Transportation - What's the Big Deal?, Esther Mullens, OU

4/6/2016 Career Opportunities and Leadership Development in Transportation Fields,  Dawn Sullivan, ODOT

4/6/2016 Field Investigation of Spread Slab Beam Bridge Systems and Development of Design Parameters, Mary Beth Hueste, TAMU

12/13/2015 Swelling Clays in Pavement Applications: Their Characterization and Stabilization using Geosynthetics, Jorge Zornberg, UT

11/16/2015 Modeling of Rutting Using the Unified Disturbed State Concept, Chandrakant Desai, University of Arizona

11/13/2015 Accelerated Bridge Construction University Transportation Center, Atorod Azizinamini, FIU

3/12/2015 Fatigue Performance of Asphalt Pavements Containing RAS and RAP, Musharraf Zaman, Rouzbeh Ghabchi, Manik Barman, OU

12/04/2014 Evolution of AASHTO-based Bridge Design, John Kulicki, Modjeski and Masters, Inc.

7/28/2014  Innovative Road Construction in India, Braj Bhushan Pandey, Indian Institute of Technology

4/24/2014  Important Aspects of Chemical Stabilization of Fine-Grained Soils, Amy Cerato, Gerald Miller, OU

4/16/2014  Long Term Bridge Performance Program – An Update, Ali Maher, School of Engineering, Rutgers University

3/18/2014  Temperature Prediction Model of Flexible Pavement in Taiwan, Yu-Min Su, National Central University