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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-10-0030
Project Name:   Direct Tension Test Method for Ultra-High Performance Concrete
Project Status:   Active
Start Date:  July 1, 2010
End Date:  December 31, 2015
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:   This project will develop a test method for the assessment of Ultra-High Performance Concrete (UHPC) tensile mechanical properties. Existing test methods do not effectively relate these properties, resulting in hesitancy from anyone considering the use of UHPC. A practical test method that directly relates the important engineering response will support the continued expansion of UHPC materials in the highway infrastructure. Test method development will be followed by assessment of the performance of multiple UHPC-class materials. Project will also include a phase wherein the efficiency of fiber reinforcement is assessed according to the test method.  One and two-dimensional structural elements will be cast and tested.
Goals:   The objective of this research program is to develop a practical, reliable test method that relates the full range of uniaxial tensile response of Ultra-High Performance Concrete (UHPC)-class materials. This tensile response includes both elastic and inelastic behaviors, with the inelastic behaviors including the generation of multiple tightly spaced cracks bridged by internal fiber reinforcement.
Product Type:   Article
Research report
Test Methodology:   Conduct a series of physical tests applying a direct tensile load to Ultra-High Performance Concrete (UHPC) components. Iteratively assess response and adjust test method.
Expected Benefits:   Project will deliver a method that quantitatively relates the tensile performance of UHPC, thus facilitating the specification and use of UHPC.
Deliverables: 1. Name: A Proposed Flexural Test Method and Associated Inverse Analysis for Ultra-High Performance Fiber-Reinforced Concrete
Product Type(s): Article
Description: Peer-reviewed journal paper published in ACI Materials Journal.   Citation:Baby, F., Graybeal, B., Marchand, P., and Toutlemonde, F., “A Proposed Flexural Test Method and Associated Inverse Analysis for UHPFRC,” ACI Materials Journal, V. 109, No. 5, September-October 2012, pp. 545-555.
2. Name: Development of Direct Tension Test Method for Ultra-High-Performance Fiber-Reinforced Concrete
Product Type(s): Article
Description: Peer-reviewed journal paper published in ACI Materials Journal.   Citation:Graybeal, B., and Baby, F., “Development of Direct Tension Test Method for Ultra-High-Performance Fiber-Reinforced Concrete,” ACI Materials Journal, V. 110, No. 2, March-April 2013, pp. 177-186.
3. Name: UHPFRC Tensile Behavior Characterization: Inverse Analysis of Four-Point Bending Test Results
Product Type(s): Research report, Article
Description: Peer-reviewed journal paper published in ACI Materials Journal.   Citation:Baby, F., Graybeal, B., Marchand, P., and Toutlemonde, F., “UHPFRC Tensile Behavior Characterization: Inverse Analysis of Four-Point Bending Test Results,” Materials and Structures, DOI 10.1617/s11527-012-9977-0, November 2012, 18 pp.
Related URL(s):   http://www.fhwa.dot.gov/research/resources/uhpc/
FHWA Topics:   Roads and Bridges--Design
TRT Terms:   Concrete Structures
Concrete
Infrastructure
Roads
Research
Materials
Highways
FHWA Disciplines:   Design
Construction and Project Management
Structures
Subject Areas:   Bridges and other structures
Materials
Research

 

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