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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-07-0003
Project Name:   Flexural Fatigue Performance of Ultra-High Performance Concrete
Project Status:   Terminated
Start Date:  January 1, 2007
End Date:  December 31, 2013
Contact Information
Last Name:  Graybeal
First Name:  Benjamin A (Ben)
Telephone:  202-493-3122
E-mail:  benjamin.graybeal@dot.gov
Office:   Office of Infrastructure Research and Development
Team:   Bridge and Foundation Engineering Team [HRDI-40]
Program:   Ultra-High Performance Concrete with Ductility
Laboratory:   Structures Laboratory
Project detail
Roadmap/Focus area(s):   Infrastructure Research and Technology Strategic Plan and Roadmap
Project Description:   Recent advances in concrete materials have led to a new generation of cementitious materials, namely ultra-high performance concrete. This concrete possesses advanced properties in terms of compressive behavior, durability, and tensile load carrying capacity. Ultra-high performance concrete attains these behaviors via an optimized gradation of cementitious materials, chemical admixtures, and steel fiber reinforcement. The current project aims to investigate the tensile fatigue behavior of this type of concrete through the flexural testing of 18 medium- scale prestressed rectangular beams. In this test program, the cyclic load levels will focus on the cracking strength of the ultra-high performance concrete to allow for the determination of the steel fiber reinforcement behaviors under fatigue loading.
Goals:   The key project objective is to investigate the fatigue performance of ultra-high performance concrete in order to facilitate appropriate uses of the material in the highway transportation sector.
Test Methodology:   The test approach is to use full-scale structural testing techniques to investigate fatigue performance of ultra-high performance concrete beams loaded in flexure.
Other Information:   This project will provide needed information to bridge engineers in terms of fundamental ultra-high performance concrete performance and appropriate uses.
Expected Benefits:   This study will investigate the fatigue performance of ultra-high performance concrete in order to facilitate appropriate uses of the material in the highway transportation sector. In particular, reinforced flexural members will be tested under fatigue loading to assess the combined performance of the primary reinforcement, the ultra-high performance concrete (UHPC) cementitious matrix, and the UHPC fiber reinforcement. Guidance on design and expected performance will be developed.
FHWA Topics:   Roads and Bridges--Design
TRT Terms:   Concrete Structures
Infrastructure
Materials
Concrete
Cement
Bridges
Fatigue (Mechanics)
Cracking
Research
FHWA Disciplines:   Design
Structures
Subject Areas:   Bridges and other structures
Materials
Research

 

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