STRENGTH EVALUATION OF IN-SITU CONCRETE BY REBOUND HAMMER AND CORE TESTING. TECHNICAL NOTE

This article reports on the results of an extensive field investigation in which the quality of in-situ concrete flatwork was evaluated. Nondestructive testing was performed using ultrasonic pulse velocity and rebound hammer techniques to establish a correlation with compressive strengths of core tests. A recommendation on the acceptance or rejection of the in-situ concrete was based on the rebound hammer/core correlation. The ultrasonic pulse velocity testing was used primarily to establish concrete uniformity. The potential long-term durability performance was determined in limited freeze-thaw testing. To minimize the effect of surface preparation on the test results, researchers spent considerable time determining the optimum grinding procedure.

Availability:
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Corporate Authors:
American Society for Testing and Materials (ASTM)

100 Barr Harbor Drive, P.O. Box C700
West Conshohocken, PA United States 19428-2957
Authors:
- WARD, M A
- LANGAN, B W
Publication Date: 1994-12

Language

English

Media Info

Features: Figures; References; Tables;
Pagination: p. 181-185
Serial:
- Cement, Concrete and Aggregates
- Volume: 16
- Issue Number: 2
- Publisher: American Society for Testing and Materials (ASTM)
- ISSN: 0149-6123
- Serial URL: http://journalsip.astm.org/JOURNALS/CEMENT/cca_home.html

Subject/Index Terms

TRT Terms: Concrete; Core samples; Correlation analysis; Durability; Field tests; Freeze thaw tests; Nondestructive tests; Pulses; Sampling; Strength of materials; Ultrasonic tests; Velocity
Uncontrolled Terms: Pulse velocity
Old TRIS Terms: Core sampling; Correlations; Rebound hammer
Subject Areas: Data and Information Technology; Highways; Materials; I32: Concrete;

Filing Info

Accession Number: 00675524
Record Type: Publication
Files: TRIS
Created Date: Mar 15 1995 12:00AM