SAMPLING OF CONCRETE IN SERVICE
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Supplemental Notes:
- Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Corporate Authors:
Highway Research Board (HRB)
Washington, DC -
Authors:
- Abdun-Nur, Edward A
- Publication Date: 1970
Media Info
- Media Type: Digital/other
- Monograph Title: Observations of the performance of concrete in service
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Serial:
- Highway Research Board Special Report
- Issue Number: 106
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Concrete hardening; Core samples; Cutting; Drill bits; Nondestructive tests; Prisms; Randomization; Sampling
- Uncontrolled Terms: Hardened concrete
- Old TRIS Terms: Coring; Diamond bits; Inservice
- Subject Areas: Data and Information Technology; Highways; Materials;
Filing Info
- Accession Number: 00213691
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jul 21 1970 12:00AM