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Direct Tension Test Method for Ultra-High Performance Concrete

Project Information

Project ID: 
FHWA-PROJ-10-0030
Project Status: 
Active
Start Date: 
Thursday, July 1, 2010
End Date: 
Thursday, December 31, 2015
FHWA Program: 
Infrastructure
FHWA Subprogram: 
Structures
FHWA Activity: 
Ultra-High Performance Concrete (UHPC)
FHWA Topics: 
Roads and Bridges--Design
TRT Terms: 
Concrete Structures; Concrete; Infrastructure; Roads; Research; Materials; Highways
FHWA Discipline: 
Design, Construction and Project Management, Structures
TRB Subject Area: 
Bridges and other structures, Materials, Research

Contact Information

First Name: 
Benjamin
Last Name: 
Graybeal
Telephone: 
(202) 493-3122
Team: 
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code: 
HRDI-40

Project Details

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.

Deliverables

Deliverable Name: 
A Proposed Flexural Test Method and Associated Inverse Analysis for Ultra-High Performance Fiber-Reinforced Concrete
Deliverable Type: 
Article
Deliverable 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.
Deliverable Name: 
Development of Direct Tension Test Method for Ultra-High-Performance Fiber-Reinforced Concrete
Deliverable Type: 
Article
Deliverable 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.
Deliverable Name: 
UHPFRC Tensile Behavior Characterization: Inverse Analysis of Four-Point Bending Test Results
Deliverable Type: 
Research report or guidelines
Deliverable 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.