Recycling seal-coat pavements with self-cementing fly ash. Phase 2, final report

Technical Report · Tue Sep 05 04:00:00 EDT 1989

OSTI ID:5146802

Ferguson, E G

The study evaluated the feasibility of recycling existing chip-seal pavements through stabilization with self-cementing fly ash. It was proposed that an existing pavement could be pulverized in place, sufficient quantities of Class C fly ash added, and the resulting mixture be compacted, providing a stabilized base having greater support capacity than the original pavement section. The Phase II program expanded the Phase I laboratory evaluation of stabilized, recycled material, with the focus of the testing being directed at three field projects. The field test sections were selected in regions having different sources of Class C fly ash; the three sources selected were conventional fossil fuel plants using subbituminous, low sulfur coal. The amount of gravel and asphaltic bound particles in the recycled material influenced the degree of stabilization achieved but to a lesser degree than the condition and amount of fines.

• Research Organization: Terracon Consultants, Lenexa, KS (United States)
• OSTI ID: 5146802
• Report Number(s): PB-91-235077/XAB; CNN: NSF-ISI8600920
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
AEROSOL WASTES
ASHES
COMBUSTION PRODUCTS
COMMINUTION
COMPACTING
DISPERSIONS
FIELD TESTS
FLY ASH
IN-SITU PROCESSING
MIXTURES
PAVEMENTS
PROCESSING
RECYCLING
RESIDUES
ROADS
STABILIZATION
TESTING
WASTE PRODUCT UTILIZATION
WASTES