We thank James Pollock, Matt Turner, Zebron Lemke, Mike Kochly, Tony Lau, and Matt Countryman for projected area experiments at the University of California – Davis (UCD). The University of Texas at Austin and Texas A&M University jointly manage the International Center for Aggregates Research (ICAR): some of the work reported here was conducted during a joint ICAR-NIST program. Granite Rock Company of Watsonville CA (GRC), Steve Ragan, Director of Research and Technical Services, supported the work at UCD and supplied most of the materials and equipment. We would also like to thank the industrial members of the Virtual Cement and Concrete Testing Laboratory Consortium for partial support of this research, and Dr. Phil Halleck at Penn State University for performing the X-ray CT scans of the 12 test rocks. The X-ray micro-CT scans of the microfine aggregates were carried out at the National Synchrotron Light Source, Brookhaven National Laboratory, which is supported by the U.S. Department of Energy, Division of Materials Sciences and Division of Chemical Sciences, under Contract No. DE-AC02-98CH10886.
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