Asphalt Lubricity Test

This newly developed test is designed for the Dynamic Shear Rheometer. It is based on the concept that in addition to viscosity, the reduction in internal friction of the asphalt binder contributes to asphalt mixture workability.

This test is being evaluated as a measure of asphalt binder workability and a mixture workability evaluation criteria.

Binder Bond Strength (BBS)

The Binder Bond Strength test (BBS) has been proposed by MARC as a practical method to measure bond strength between aggregate and asphalt binder.

Recently approved as AASHTO Standard TP 91.

BBR-SENB

The BBR-SENB system is a modification of the Bending Beam Rheometer, that enables low temperature fracture testing on BBR size beams.

MARC continues to evaluate the potential of the BBR-SENB system for better estimation of the thermal cracking susceptibility of asphalt materials.

News

October 15, 2015

MARC Researchers Present Findings at 8th International RILEM SIB Symposium in Ancona, Italy.

Mr. Pouya Teymourpour and MARC director Dr. Hussain Bahia presented the latest findings in asphalt mastics characterization at 8th International RILEM SIB Symposium in Ancona, Italy on October 7, 2015. The development of failure master curve for the asphalt mastic characterization of low temperature property was introduced in details. It was also concluded that the mastics have significantly different fracture behavior than binders. Therefore it is better to test mastics to predict mixture cracking. This presentation can be accessed here. The former MARC researcher Dr. Nima Roohi Sefidmazgi who's currently affiliated with Green Asphalt Co., and Dr. Bahia also presented the findings in "Mechanisms of Failure in Uniaxial Repeated Creep Test and the Relationship to Aggregate Packing" and the presentation can be found here.

October 10, 2015

MARC Researcher Presents Latest Findings at Rubberized Asphalt Rubber 2015 Conference in Las Vegas, NV.

MARC researcher Mr. Tirupan Mandal presented the latest findings in effect of crumb rubber on rheological properties of asphalt binder and aggregate packing of asphalt mixtures at Rubberized Asphalt Rubber 2015 Conference in Las Vegas, NV on October 4-7, 2015. In his presentation, he hypothesized that crumb rubber size, rubber concentration, and reaction time plays an important role in the rheological properties of rubber modified binders and aggregate packing of rubberized asphalt mixtures. He evaluated the effect of crumb rubber particles on the rheological properties of asphalt binders and the aggregate packing of the rubber modified asphalt mixtures through experimentation and image analysis. The detailed presentation can be accessed here.

August 31, 2015

MARC Researcher Receives IAHE Scholarship.

The MARC researcher Mr. Cheng Ling received the 2015 Grant Shaw Memorial Scholarship from Illinois Association of Highway Engineers in the past summer. Mr. Cheng Ling joined MARC in January 2012 and was initially involved in the asphalt emulsion and cold mix asphalt research as part of Asphalt Research Consortium (ARC). In that research he evaluated the coating and bonding properties of cold mix asphalt (CMA) and their relationship to the moisture susceptibility of CMA. He also developed a mix design protocol and volumetric analysis procedures for CMA. He obtained his second Master's degree on this research and proceeded to his PhD research focused on "Importance of Binder Modification Type and Aggregate Structure on Rutting Resistance of Asphalt Mixtures Using Image-based Multi-scale Modeling". He's currently also involved several research projects on asphalt binder characterization and asphalt mixture performances.

July 31, 2015

MARC Researchers Present Findings at PARC Conference in Laramie, WY.

The former MARC researcher Sebastian Puchalski who's currently affiliated with Kraton Polymers, and MARC director Dr. Hussain Bahia presented the latest findings in investigation of warm mix asphalt additives using the science of tribology to explain improvements in mixture compaction at the 2015 Petersen Asphalt Research Conference (PARC) held by Western Research Institute (WRI) in Laramie, WY. They found that the warm mix additives can affect asphalt concrete compaction, so it is important to look at asphalt as a lubricant at compaction temperatures. In addition, the tribology should be considered in capturing the lubricating effect of warm mix additives. This presentation can be accessed here.

July 15, 2015

MARC Director Dr. Hussain Bahia Presents Latest Findings at GAF Seminar in Wayne, NJ.

MARC director Dr. Hussain Bahia delivered a presentation on "Thermal Cracking of Asphalt Binders and Mastics - Causes and Possible Mitigations" at GAF Seminar in Wayne, NJ on June 25, 2015. The advances in understanding the thermal cracking of binders, effect of fillers and methods of estimating resistance to cracking were presented. The attempt to link these findings to roofing applications was discussed in details. Dr. Bahia also showed how the new testing methods could help producers to estimate quality and reduce the risk of premature failures. The details of this presentation can be found here.

Events

March 21, 2014

MARC Workshop on Mixing and Compaction of Hot and Warm Asphalt Mixtures to be Held on 4/30-5/1

The Modified Asphalt Research Center (MARC) will be hopsting its 5th workshop on the factors affecting mixing and compaction temperatures of conventional and non-conventional HMA products on April 30-May 1, 2014. For more information on future workshops and registration please visit the workshop webpage.

March 14, 2014

First Workshop on Improved Characterization Methods for Modified Binders, Emulsions, and Mixtures in May 2014

The Modified Asphalt Research Center (MARC) will be hosting its first workshop on state of the art Test Procedures for Characterization of Performance of Polymer and Oil Modified asphalt materials on mAY . The next workshop will be held in May 29-30, 2014. The 2 day workshop will cover characterization procedures for binder, emulsions, and mixtures developed as part of the Asphalt Research Consortium project. For more information on the workshop program and registration please visit the workshop webpage.

November 15, 2013

MARC holds 4th Workshop on Mixing and Compaction of Hot and Warm Asphalt Mixtures in November 2013

The Modified Asphalt Research Center (MARC) hosted its third workshop on the factors affecting mixing and compaction temperatures of conventional and non-conventional HMA products on November 13-14, 2013. The next workshop will be held in April 2014. For more information on future workshops and registration please visit the workshop webpage.

August 16, 2013

MARC holds 3rd Workshop on Mixing and Compaction of Hot and Warm Asphalt Mixtures in August 2013

The Modified Asphalt Research Center (MARC) hosted its third workshop on the factors affecting mixing and compaction temperatures of conventional and non-conventional HMA products on August 14-15, 2013. The first and second offerings of this workshop were held in December 2012, and March 2013, respectively. For more information on future workshops and registration please visit the workshop webpage.

July 11, 2013

Professor Bahia Delivers Short Courses on Advanced Characterization in Rio de Janeiro, Brazil

UW-MARC director Professor Hussain Bahia delivered a three day short course in Rio de Janeiro, Brazil on July 8-10, 2013. The course objective was to cover advanced capacitation on the properties and tests of asphalt binders and mixtures with introduction to laboratory measurement techniques to assess material performance capabilities. The audience included engineers, chemists, researchers, and professionals in the asphalt paving area in Brazil.

March 15, 2013

MARC holds 2nd Mixing and Compaction of Hot and Warm Asphalt Mixtures Workshop

The Modified Asphalt Research Center (MARC) hosted its second workshop about the factors affecting mixing and compaction temperatures of conventional and non-conventional HMA products on March 13-14, 2013. The workshop was to introduced new technologies for evaluation of mix components properties that affect compaction. An open forum was provided for discussion on improving current mix design procedures through implimentation of new technoglogies discussed in this workshop.