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Asphalt Mix Compaction Modeling

Project Information

Project ID: 
FHWA-PROJ-12-0041
Project Status: 
Terminated
Start Date: 
Monday, June 4, 2012
End Date: 
Thursday, June 4, 2015
FHWA Program: 
Infrastructure
FHWA Subprogram: 
Pavement and Materials
FHWA Topics: 
Roads and Bridges--Pavement and Materials
TRT Terms: 
Hot Mix Asphalt; Compaction; Aggregates; Asphalt; Infrastructure; Research; Pavements
FHWA Discipline: 
Pavement and Materials
TRB Subject Area: 
Materials, Pavements, Research

Contact Information

First Name: 
Jack
Last Name: 
Youtcheff
Telephone: 
(202) 493-3090
Email Address: 
Team: 
Infrastructure Materials Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-10

Project Details

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.

Goals

Address the gaps in the calibration inputs for previously completed "Modeling of Hot-Mix Asphalt Compaction: A Thermodynamics-Based Compressible Viscoelastic Model."

Deliverables

Deliverable Name: 
Predictive methodology to determine aggregate characteristics' influence on general compactability and Superpave gyratory compactor (SGC) compaction curves that serve to enhance calibration procedure for existing compaction model constitutive inputs
Deliverable Type: 
Research report or guidelines
Deliverable 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.