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| Concrete Strength Testing |
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 Photo
by H. Mark Helfer |
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Technician Max Peltz examines a precast concrete beam being tested for strength and ductility at the NIST tri-directional test facility. |
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Building and Fire Research Laboratory Copyright is owned by the photographer. This photo is available without charge for use in materials that describe NIST programs directly. All other uses require permission from the photographer. For further information or to receive a high resolution version of this image contact: inquiries@nist.gov, (301) 975-6478. |