Geotechnical Characterization of Some Indian Fly Ashes
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 5
Abstract
This paper reports the findings of experimental studies with regard to some common engineering properties (e.g., grain size, specific gravity, compaction characteristics, and unconfined compression strength) of both low and high calcium fly ashes, to evaluate their suitability as embankment materials and reclamation fills. In addition, morphology, chemistry, and mineralogy of fly ashes are studied using scanning electron microscope, electron dispersive x-ray analyzer, x-ray diffractometer, and infrared absorption spectroscopy. In high calcium fly ash, mineralogical and chemical differences are observed for particles, and the particles of size. The mode and duration of curing significantly affect the strength and stress–strain behavior of fly ashes. The geotechnical properties of fly ash are governed by factors like lime content (CaO), iron content and loss on ignition. The distinct difference between self-hardening and pozzolanic reactivity has been emphasized.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 17 • Issue 5 • October 2005
Pages: 544 - 552
Copyright
© 2005 ASCE.
History
Received: Jun 17, 2003
Accepted: Mar 5, 2004
Published online: Oct 1, 2005
Published in print: Oct 2005
Notes
Note. Associate Editor: Manoochehr Zoghi
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