STATISTICAL SPECIFICATION EVALUATION
A statewide evaluation of test results from Highway Construction Materials was performed. Statistical parameters were determined for physical tests on aggregate base, portland cement concrete, asphalt concrete, and cement treated base. Where possible the current quality levels were compared with prestatistical specification levels. Specifically, a technique known as the Moving Average was monitored to determine what, if any, differences in materials quality level would result, in conjunction with data collection and analysis. Personal contact was established with over 100 resident engineers and materials' men throughout the State to determine their reactions to, and opinions of, the Moving Average. Although the Moving Average method being researched was not in effect long enough for a definitive evaluation, the results obtained indicated that quality levels have not been adversely affected and further that the personnel who worked with the new method generally were in favor of it. /FHWA/
- Sponsored by California Department of Transportation in cooperation with FHWA.
5900 Folsom Boulevard
Sacramento, CA United States 95819
Washington, DC United States 20590
- Trimble, R
- Kurilow, G
- Nakao, D
- Publication Date: 1975-7
- Pagination: 37 p.
- TRT Terms: Aggregates; Asphalt concrete; Base course (Pavements); Cement treated soils; Evaluation; Materials; Materials tests; Methodology; Portland cement concrete; Quality control; Specifications; Statistical analysis; Statistical quality control
- Uncontrolled Terms: Base; Cement treated bases
- Old TRIS Terms: Materials specifications
- Subject Areas: Construction; Data and Information Technology; Geotechnology; Highways; Materials;
- Accession Number: 00130589
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: CA-DOTTL-1146-1-7525Final Rpt.
- Contract Numbers: FHWA-F-1-3
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Mar 29 1976 12:00AM