IMPROVING THE QUALITY OF HOT BITUMINOUS TYPE WINTER PATCHING MATERIALS
This report details the results of a study to improve the quality of hot bituminous type winter patching material. The principal material investigated was hot plant mix surface course material (meeting NJDOT Mix #5 grading) produced in McConnoughay portable pugmill mixers. The report discusses mix design, equipment modifications and changes in operating procedures which had to be made in order to achieve a durable patch material. To achieve maximum results, mineral filler had to be added to the mix aggregates and a heated trailer used to transport the material in order to minimize heat loss. The report includes the results of a survey of asphalt plants designed to investigate the feasibility of obtaining plant mixed materials in winter. An economic evaluation of comparative costs of patching material obtained for commercial asphalt plants, McConnoughay portable pugmills, and small user operated drum mixer plants is included. /FHWA/
- This report was sponsored by DOT, Federal Highway Administration.
Trenton, NJ United States 08625
- Indahl, G W
- Publication Date: 1978-3
- Pagination: 98 p.
- TRT Terms: Alternatives analysis; Asphalt; Asphalt plants; Bituminous mixtures; Costs; Hot mix asphalt; Mix design; Patching
- Subject Areas: Finance; Highways; Materials;
- Accession Number: 00182645
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: FHWA-78-012-7743 Final Rpt.
- Contract Numbers: NJ Study 7743
- Files: TRIS, USDOT, STATEDOT
- Created Date: Dec 3 1978 12:00AM