CALIFORNIA TRIALS WITH LEAN CONCRETE BASE (LCB)
This report covers details of two large-scale field trials of lean concrete base (LCB). By adding additional cement and water to aggregates used for cement treated base (CTB), a plastic mix is produced which can be placed with a slipform paver using only internal vibration for compaction. Between 50 and 100 percent additional cement was required to produce LCB with compressive strength comparable to the in-place strength of CTB. LCB was found to have greater stiffness and a more sealed and abrasion resistant surface than CTB. Some of the increased costs due to additional cement are offset by greater production and the use of less placing and finishing equipment.
- Project conducted in cooperation with DOT and FHWA.
5900 Folsom Boulevard
Sacramento, CA United States 95819
- Neal, B F
- Woodstrom, J H
- Spellman, D L
- Publication Date: 1975-10
- Pagination: 32 p.
- TRT Terms: Abrasion resistance; Aggregates; Base course (Pavements); Cement treated soils; Compaction; Compressive strength; Concrete bases; Lean concrete; Slip form paving; Stiffness; Vibration
- Uncontrolled Terms: Cement treated bases
- Old TRIS Terms: Internal vibration; Lean mix concrete
- Subject Areas: Construction; Geotechnology; Highways; Maintenance and Preservation; Pavements; Vehicles and Equipment;
- Accession Number: 00139808
- Record Type: Publication
- Source Agency: Federal Highway Administration
- Report/Paper Numbers: CADOTTL-5167-3-76-37Intrm Rpt.
- Contract Numbers: D-3-32
- Files: TRIS, USDOT, STATEDOT
- Created Date: Oct 6 1976 12:00AM