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Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-12-0041
Project Name:   Asphalt Mix Compaction Modeling
Project Status:   Terminated
Start Date:  June 4, 2012
End Date:  June 4, 2015
Contact Information
Last Name:  Gibson
First Name:  Nelson H
Telephone:  202-493-3073
E-mail:  nelson.gibson@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Pavement Materials Team [HRDI-10]
Program:   Turner-Fairbank Highway Research Center
Laboratory:   Binder Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   The research will utilize flexible wall, triaxial consolidation of hot-mix asphalt (HMA) job mix formulas as a more fundamental measure of compaction rather than Superpave gyratory compaction to rank the compactability. The ranking will be paired with an on-the-market Aggregate Imaging System, which now has an established American Association of State Highway and Transportation Officials provisional protocol and basic practical volumetric measures.
Address the gaps in the calibration inputs for previously completed "Modeling of Hot-Mix Asphalt Compaction: A Thermodynamics-Based Compressible Viscoelastic Model."
Background Information:   See "Modeling of Hot-Mix Asphalt Compaction: A Thermodynamics-Based Compressible Viscoelastic Model Publication No. FHWA-HRT-10-065."
Product Type:   Draft standard, specifications, or guidelines
Research report
Test Methodology:   Image processing, Ancillary Information Management System (AIMS) device, Superpave gyratory compactor (SGC), multivariable correlation
Expected Benefits:   Ability to design mixtures with desirable compaction characteristics and improved performance.
Deliverables: Name: Predictive methodology to determine aggregate characteristicsÂ’ influence on general compactability and Superpave gyratory compactor (SGC) compaction curves that serve to enhance calibration procedure for existing compaction model constitutive inputs.
Product Type(s): Research report, Software, Draft standard, specifications, or guidelines
Description: By simply measuring the Ancillary Information Management System (AIMS) characteristics and knowing the job mix formula volumetrics, practitioners will be able to rapidly predict behavior of mixtures in laboratory compaction and expected field compaction.
FHWA Topics:   Roads and Bridges--Pavement and Materials
TRT Terms:   Hot Mix Asphalt
FHWA Disciplines:   Pavement and Materials
Subject Areas:   Materials


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