AN EVALUATION OF LOWER MIXING TEMPERATURES FOR BITUMINOUS PAVING MIXES
The primary objective of this project is to investigate the economic potential and the engineering properties of hot plant mixed bituminous mixes produced at lower than normal mixing temperatures. This was accomplished by monitoring plant and field operations of a hot bituminous paving project in which approximately 52 % of the base and binder courses were mixed at 225 degrees F (+25 degrees F) instead of the normal 300 degrees F (+25 degrees F). No significant changes were noted in the engineering properties between the normal and lower temperature mixes. Plant and field conditions were not adversely affected. An energy analysis pointed out a 20.6% reduction in energy consumption, largely due to savings of dryer fuel. The state realized no direct financial benefit from the procedure since the regular and lower temperature mixes were bid at the same price.
- Sponsored in part by Federal Highway Administration, Jackson, MS. Mississippi Div.
Mississippi State Highway DepartmentP.O. Box 1850
Jackson, MI United States 39215
Washington, DC United States 20590
- Crawley, A B
- Publication Date: 1981-6
- Pagination: 45 p.
- TRT Terms: Asphalt; Asphalt plants; Building materials; Flexible pavements; Mixtures; Specifications; Temperature control (Structures)
- Subject Areas: Construction; Data and Information Technology; Highways; Materials;
- Accession Number: 00344420
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: MSHD-RD-81-069-I
- Files: NTIS, USDOT, STATEDOT
- Created Date: Nov 23 2002 12:00AM