This project aims to 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.
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.
A Proposed Flexural Test Method and Associated Inverse Analysis for Ultra-High Performance Fiber-Reinforced Concrete. [Source: FHWA, PMSS Database (2013)]