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Abstract for presentation (Poster or Podium) with a Paper in the Conference Proceedings

Highway Pavements

Advanced Characterization of Asphalt Binders Used in Bangladesh

Monday, June 17, 2024

10:15 AM - 11:30 AM ET

Room: Galleria

Primary Author(s)

Javed Bari, PhD, PE, M.ASCE (he/him/his)

Professor
North South University
Dhaka, Dhaka, Bangladesh

Presenter(s)

Javed Bari, PhD, PE, M.ASCE (he/him/his)

Professor
North South University
Dhaka, Dhaka, Bangladesh

Co-Author(s)

Anik K. Bhakta, B.Sc. in Civil and Environmental Engineering (he/him/his)

Civil Engineer
North South University
Dhaka, Dhaka, Bangladesh
MH

Mohammed Nahid Hassan

Ex-Student
North South University
Dhaka, Dhaka, Bangladesh
Md. R. H. Chowdhury, B.Sc. in Civil and Environmental Engineering

Civil Engineer
North South University
Dhaka, Dhaka, Bangladesh
Faria Tabassum, MS, M.ASCE (she/her/hers)

Engineering Associate Senior
Flood Control District, Maricopa County
Chandler, AZ, United States

Presenter(s)

Faria Tabassum, MS, M.ASCE (she/her/hers)

Engineering Associate Senior
Flood Control District, Maricopa County
Chandler, AZ, United States

Submitter(s)

JB

Javed Bari, Ph.D., PE, M.ASCE

North South University
Dhaka, Dhaka, Bangladesh

Abstract:

The study’s main objective was to conduct an advanced characterization of the two most common asphalt binders used in Bangladesh. The study included conventional and advanced laboratory tests of asphalt binders, checking conformance with standard specifications, determination of the viscosity-temperature susceptibility characteristics (i.e., ASTM “A” and “VTS” values) of the samples, comparing with the default A and VTS values provided by the Mechanistic-Empirical Pavement Design Guide (MEPDG) of AASHTO, determining the actual performance grade of the binders, and finding out the location-specific desired asphalt binders. The study revealed that the Penetration Grade 60/70 asphalt binder used in Bangladesh is equivalent to PG 64-28, and the Polymer Modified Penetration Grade 60/70 asphalt binder is equivalent to PG 76-34. Both asphalt binders evaluated in this study exceed the specification requirements of binders suitable for the relevant climatic conditions (i.e., PG 64-10 unmodified and PG 76-10 PMB). It is envisaged that this study will provide valuable insight into the design and analysis of asphalt binders used in the pavements of Bangladesh and pave the way for switching to the Performance Grade (PG) system in the country.

Learning Objectives:

Attendees can expect to learn the following from this session:

Upon completion, participant will be able to assess the test data of conventional and advanced laboratory tests of asphalt binders.
Upon completion, participant will be able to check conformance of asphalt binder’s characteristics with standard specifications.
Upon completion, participant will be able to ASTM “A” and “VTS” values of asphalt binders using simple tests and compare them with default values provided by the MEPDG of AASHTO.
Upon completion, participant will be able to determine the actual performance grade (PG) of Penetration Grade asphalt binders and determine the location-specific desired asphalt binders.