QUALITY CONTROL ANALYSIS, PART V. REVIEW OF DATA GENERATED BY STATISCAL SPECIFICATIONS ON ASPHALTIC CONCRETE
The report represents a review of asphaltic concrete data generated by statistical specifications which have been in effect since the middle of 1971. The review covered analysis of data for determination of price reduction for deficient material and overall variability of these data. The analysis and evaluation indicated: (1) an overall reduction of 1.5% in the contract unit proce; (2) that most of the reduction in payment occurred as a result of deficiency in roadway compaction followed by surface tolerance and Marshall stability; (3) an overall reduction in the level of uniformity in the production of asphaltic concrete as indicated by the magnitude of standard deviations for extraction and stability data; and (4) a necessity to increase the sample size, from fraction of the lot to the entire lot, for surface smoothness measurements. Results of questionnaire are presented with a view toward overall assessment of these specifications as gauged by field construction engineers.
- Sponsored by DOT, Federal Highway Administration.
Louisiana Department of HighwaysP.O. Box 44245, Capitol Station
Baton Rouge, LA USA 70804
- Shah, S C
- Joches, V
- Publication Date: 1975-12
- Pagination: 84 p.
- TRT Terms: Asphalt concrete; Chemical analysis; Compaction; Prices; Quality control; Questionnaires; Reduction (Chemistry); Resource extraction; Specifications; Standard deviation; Standardization; Statistical analysis; Statistical sampling; Surfaces; Tolerance (Physiology)
- Uncontrolled Terms: Extraction (Chemistry); Sample size
- Old TRIS Terms: Reduction; Surface tolerance
- Subject Areas: Data and Information Technology; Highways; Materials;
- Accession Number: 00158081
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: 94 Final Rpt.
- Contract Numbers: LA HPR 63-1G
- Files: TRIS, USDOT, STATEDOT
- Created Date: Oct 13 1977 12:00AM