Use of coal ash in highway construction: Kansas Demonstration Project

Technical Report · Fri Sep 01 04:00:00 EDT 1989

OSTI ID:5752329

Ferguson, G ^[1]

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1. Terracon Consultants, Lenexa, KS (USA)

This report documents the use of cementitious type C coal ash in three Kansas roadbase stabilization demonstrations, as well as subsequent monitoring of the roads for structural stability and impact on groundwater. The study showed that conventional recycling equipment can achieve satisfactory pulverization, mixing, and compaction. Further, after approximately nine months of service, the test sections have exhibited no signs of deterioration due to traffic, weather, or frost. The only problems to date relate to adhesion of the wearing surface to the fly-ash-stabilized base section. Proper selection of tack-coat materials should minimize this problem. This interim report contains no postconstruction data. A final report, issued at the conclusion of the two-year monitoring period, will document periodic evaluations of ash material quality, roadbase structural behavior and performance, and groundwater monitoring. 43 figs., 23 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Kansas Electric Utilities Research Program, Topeka, KS (USA)
• Sponsoring Organization: EPRI
• OSTI ID: 5752329
• Report Number(s): EPRI-GS-6460
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320602 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Public Services-- (1980-)
36 MATERIALS SCIENCE
360603 -- Materials-- Properties
ADHESION
AEROSOL WASTES
ASHES
CHEMICAL COMPOSITION
COMPRESSION STRENGTH
DEMONSTRATION PROGRAMS
ENVIRONMENT
FEDERAL REGION VII
FLY ASH
GROUND WATER
HYDROGEN COMPOUNDS
KANSAS
MECHANICAL PROPERTIES
MOISTURE
NORTH AMERICA
OXYGEN COMPOUNDS
RESIDUES
ROADS
STABILITY
SURFACES
TOXICITY
USA
WASTE PRODUCT UTILIZATION
WASTES
WATER