- Author
- Snyder, K. A. | Clifton, J. R. | Carino, N. J.
- Title
- Nondestructive Evaluation of the In-Place Compressive Strength of Concrete Based Upon Limited Destructive Testing.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Sponsor
- Oak Ridge National Laboratory, Oak Ridge, TN Nuclear Regulatory Commission, Washington, DC
- Report
- NISTIR 4874, July 1992, 68 p.
- Distribution
- AVAILABLE FROM National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161. Telephone: 1-800-553-6847 or 703-605-6000; Fax: 703-605-6900. Website: http://www.ntis.gov
- Keywords
- concretes | break-off | nondestructive testing | probe penetration | pull-out | pulse velocity | rebound hammer | regression analysis | strength estimation
- Abstract
- Regression analysis was performed on published data from nondestructive and cylinder compressive strength testing of concrete. The nondestructive tests investigated were: rebound hammer, probe penetration, pulse velocity, pullout, and break-off. Regression analysis accounted for the error in both the nondestructive and the compressive strength data and their constant coefficient of variation. Data for each nondestructive test were grouped by coarse aggregate type and aggregate mass fraction. The results of the regression analysis are given, along with the parameters required to estimate compressive strength from subsequent nondestructive tests. A common format for the analysis and reporting of nondestructive-destructive regression experiments is suggested.