Geotechnical properties of fly ash and lime-fly ash stabilized coal mine refuse for highway construction
Book
·
OSTI ID:106376
- Southern Illinois Univ. Carbondale, IL (United States)
The present study was designed to determine the geotechnical properties of coal refuse from one of several mines in southern Illinois and to assess the possibility of using it, along with fly ash produced by burning local coal, to construct highway embankments and base courses. Tests have been conducted to determine the gradation, standard Proctor compaction characteristics, triaxial shear strength, California Bearing Ratio, and hydraulic conductivity. Degradation of refuse particles as a result of the compaction process also has been investigated. The laboratory studies were conducted both on untreated specimens and on specimens stabilized with varying amounts of fly ash and lime-fly ash mixtures. According to ASTM C628, this may be classified as a type F fly ash. Fly ash used to treat the coal refuse samples was obtained from a nearby power plant that uses coal from southern Illinois mines. The details of the tests conducted and the results obtained are discussed herein.
- OSTI ID:
- 106376
- Report Number(s):
- CONF-9210116--; ISBN 1-885189-02-8
- Country of Publication:
- United States
- Language:
- English
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