ECONOMIC BITUMINOUS TREATED BASES
Research was conducted to determine the technical and economic suitability of using low-quality, lower cost, local aggregates in asphalt treated base courses in Texas. Five marginal aggregates were investigated together with three sands and a sand gravel mixture. Results indicate that several of the marginal aggregates can be utilized as bituminous stabilized base courses provided that strict quality and construction control measures are employed. Additionally, these materials must be used under traffic and environmental conditions which are compatible with the stabilized mixture properties. Cores from several pavements containing asphalt treated materials were obtained and compared with the results from the laboratory study on marginal aggregates. In general the laboratory results are with the range of properties obtained from the field cores. An economic analysis method shows that mixture design and pavement design considerations cannot be separated, if an economic solution is to be provided.
- This report was sponsored by the Texas State Department of Highways and Public Transportation and prepared in cooperation with DOT, Federal Highway Administration.
Arlington, TX United States 76011
- Schoen, W A
- Epps, J A
- Gallaway, B M
- Little, D N
- Publication Date: 1977-9
- Pagination: 231 p.
- TRT Terms: Aggregates; Bituminous bases; Economics; Gravel; Laboratory studies; Pavement design; Quality control; Road construction; Sand
- Old TRIS Terms: Low cost road construction
- Subject Areas: Economics; Geotechnology; Highways; Pavements;
- Accession Number: 00178777
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: FHWA-TX-78-41-2F Final Rpt.
- Contract Numbers: Res. Study 2-6-74-41
- Files: TRIS, USDOT
- Created Date: Sep 14 1978 12:00AM