Oral Presentation International Conference on Tomography of Materials & Structures

X-ray Tomography and Diffraction Measurements to Study Elasticity and Fracture in Concrete (71)

Ryan C Hurley 1 2 , Darren C Pagan 3
  1. Mechanical Engineering, Johns Hopkins University, Baltimore, MD, USA
  2. Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, MD, USA
  3. Cornell High Energy Synchrotron Source, Ithaca, NY, USA

We combine in-situX-ray computed tomography (XRCT) and 3D X-ray diffraction (3DXRD) towe measure cement paste strain fields, quantify the nucleation and growth of fractures, and measure full stresstensors in∼40 sand particles embedded in the cement paste of a concrete sample compressed to failure. Themeasurements provide new insight into stress heterogeneity before and after sample fracture

Download Full Paper