Evaluation of a nuclear asphalt content gage. Final report
The developments of nuclear asphalt content gages are reviewed and gage operation and use were studied in the laboratory to determine significant parameters that may affect nuclear gage results. Two Troxler Model 2226 Asphalt Content Gages, serial Nos. 307 and 308, were used in this study. Parameters investigated were (a) asphalt content; (b) moisture content; (c) aggregate gradation; (d) interactions of (a), (b), and (c); (e) sample size; and (f) sample temperature. Precision and accuracy experiments were conducted. These included (2 sup n) factorial experiments and stepwise multiple linear regression analyses of the results. Asphalt content determinations equaling or bettering those of the conventional extraction technique were obtained in considerably less time.
- Research Organization:
- Army Engineer Waterways Experiment Station, Vicksburg, Miss. (USA)
- OSTI ID:
- 7355148
- Report Number(s):
- AD-A-016854; AEWES-Misc-Paper-S-75-23
- Country of Publication:
- United States
- Language:
- English
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ASPHALTS
CHEMICAL ANALYSIS
MOISTURE
MOISTURE GAGES
PERFORMANCE
RADIATION DETECTORS
RADIOMETRIC GAGES
BITUMENS
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
TAR
440105* - Radiation Instrumentation- Radiometric Instruments- (-1987)