U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

Overview

 

Research and Development (R&D) Project Sites

Project Information
Project ID:   FHWA-PROJ-12-0039
Project Name:   Laboratory Testing of Aggregates for Road and Bridge Construction
Project Status:   Active
Start Date:  March 25, 2013
End Date:  December 31, 2015
Contact Information
Last Name:  Nicks
First Name:  Jennifer E
Telephone:  202-493-3075
E-mail:  jennifer.nicks@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Bridge and Foundation Engineering Team [HRDI-40]
Program:   Innovative Bridge Research and Deployment
Laboratory:   Geotechnical Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   These projects will use standard and nonstandard specialized laboratory testing equipment to characterize common aggregates used for road and bridge construction. The results of this research will provide new aggregate characterization methods that will benefit geotechnical and pavement engineers who incorporate these materials into their designs.
Goals:  
The primary objectives are:
(1) To compare strength results of AASHTO open-graded aggregates tested using large-scale direct shear
(2) Investigate effect of relative density and scale on strength of open-graded aggregates
(3) Quantify strength of AASHTO well-graded aggregates  
Product Type:   Research report
Test Methodology:   Laboratory testing
Expected Benefits:   More accurate geotechnical design and strength parameters.
Deliverables: 1. Name: Strength Characterization of Open-Graded Aggregates Research Report
Product Type(s): Research report
Description: Research report on the measured strength properties of open-graded aggregates using both the large-scale direct shear (LSDS) and the large diameter triaxial (LDTX) devices.
2. Name: Characterization of Aggregates Research Report.
Product Type(s): Research report
Description: Research report on the characterization of aggregates used for road and bridge construction.
FHWA Topics:   Research/Technologies--Turner-Fairbank Highway Research Center (TFHRC)
TRT Terms:   Testing
Infrastructure
Research
Bridges
Roads
Aggregates
FHWA Disciplines:   Geotechnical
Subject Areas:   Bridges and other structures
Geotechnology
Research

 

Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101