Use of coal ash in highway pavements: Kansas Demonstration Project. Final report

Technical Report · Wed Jan 01 04:00:00 EST 1992

OSTI ID:10122658

Ferguson, G; Zey, J

This report documents the use of cementitious type C coal ash in three Kansas roadbase stabilization projects that included an extensive laboratory study, as well as subsequent monitoring of the roads for structural stability and evaluation of leaching potential into the underlying soils. The projects were intended to demonstrate that the process proposed could recycle existing roadway materials in place. The study showed that conventional recycling equipment can achieve satisfactory pulverization, mixing, and compaction. Further, after more than two years of service, the stabilized sections have exhibited no signs of deterioration due to traffic, weather, or frost. The only problems observed to data release to adhesion of the wearing surface to the fly-ash-stabilized base sections. Proper selection of tack-coat materials should minimize this problem. The results of the laboratory study correlated well with the observed pavement performance.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Kansas Electric Utilities Research Program, Topeka, KS (United States); Terracon Consultants, Lenexa, KS (United States)
• Sponsoring Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 10122658
• Report Number(s): EPRI-TR--100328; ON: UN92007554
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800
54 ENVIRONMENTAL SCIENCES
540210
540220
ASHES
BASIC STUDIES
CHEMICALS MONITORING AND TRANSPORT
COAL
CONSTRUCTION
DESIGN
FLY ASH
KANSAS
PAVEMENTS
RECYCLING
ROADS
WASTE MANAGEMENT
WASTE PRODUCT UTILIZATION