RE-CAST Webinars

Title

Three-Dimensional Study of Concrete Microstructure using X-ray Computed Tomography

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Abstract

Presented by: Prof. David Lange University of Illinois, Urbana, IL and Dr. Tyler Oesch U.S. Army EngineerResearch and Development Center, Vicksburg, MS

New technology has made it possible to create three-dimensional images of microstructure to better understand the performance of concrete. X-ray computed tomography (XCT) has been used to study phases — aggregate, paste, air bubbles, porosity and fibers — and discern crack propagation of samples under load. This webinar will feature recent research that explores how XCT can be applied to concrete materials over a range of scale that encompasses small cement grains on the low end to steel fibers and aggregates on the high end. XCT provides unprecedented opportunities: We can interrogate wet samples over time to observe hydration; we can study distribution of entrained air bubbles; we can load samples to study crack propagation and contrast HPC and OPC; we can investigate fiber reinforced materials to appreciate how fibers influence fracture. The research community is only beginning to appreciate how these powerful new techniques will lead to profound new knowledge about concrete materials.

Publication Date

2015

Publisher

Missouri University of Science and Technology

Research Center/Lab(s)

Re-Cast Tier1 University Transportation Center

Additional Information

Presented on: Tuesday, March 3, 2015

Rights

© 2015 Missouri University of Science and Technology All Rights Reserved

Document Type

Moving image

Document Version

Final Version

Department(s)

Civil, Architectural and Environmental Engineering

File Type

movingimage

Language

English

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