STRAIN METERS AND STRESS METERS FOR EMBEDMENT IN MODELS OF MASS CONCRETE STRUCTURES. REPORT 2. EVALUATION OF MICRODOT EMBEDMENT STRAIN GAGE
To obtain information on the actual state of stress and/or strain within a concrete structure or model, it is of primary importance to make measurements in the interior of the structure or model. The main problem in model work is to obtain measuring devices small enough for embedment in a small-scale model. This report describes the results of tests to evaluate the effectiveness of a small, bonded-metal, embedment gage manufactured by Microdot, Inc. Due to its small size (2-in. active gage length, 0.04-in. diam), the gage can be embedded in relatively small-scale models, yet it appears large enough to give meaningful average readings within a heterogeneous material such as microconcrete. Because of its size, stability, and other desirable inherent qualities, the Microdot embedment gage appears suitable for use in measuring internal strains within models, provided an empirical calibration of the gage is made.
- See also Report 1, AD-666 182.
U.S. Army Waterways Experiment Station3909 Halls Ferry Road
Vicksburg, MS USA 39180-6199
- McDonald, J E
- Publication Date: 1972-7
- Pagination: 40 p.
- TRT Terms: Anchoring; Calibration; Concrete; Deformation curve; Mass concrete; Mathematical models; Measurement; Microconcrete; Performance tests; Strain gages; Strain measurement; Structural analysis; Structures
- Uncontrolled Terms: Models
- Old TRIS Terms: Embedding; Embedments (Concrete); Stress meters
- Subject Areas: Bridges and other structures; Highways; Materials;
- Accession Number: 00150819
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: WES-TR-6-811-2
- Files: TRIS
- Created Date: Mar 30 1977 12:00AM