Open AccessJournal Article
Fly ash characterization with reference to geotechnical applications
TLDR
In this article, the authors present a review of fly ash characterization with reference to geotechnical applications and show that fly ash is a freely draining material with angle of internal friction of more than 30 degrees.Abstract:
Thermal power stations use pulverized coal as fuel. They produce enormous quantities of coal ash as a by-product of combustion. This calls for the development of strategies to encourage and establish technological concepts which will ensure consumption of fly ash in bulk. Among the various uses of fly ash, its bulk utilization is possible only in geotechnical engineering applications. This necessitates characterization of the fly ash with reference to geotechnical applications. This paper presents a review of such studies carried out. The results show that fly ash is a freely draining material with angle of internal friction of more than 30 degrees. The specific gravity is lower leading to lower unit weights resulting in lower earth pressures. It can be summarized that fly ash (with some modifications/additives, if required) can be effectively utilized in geotechnical applications.read more
Citations
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Physical, chemical, and geotechnical properties of coal fly ash: A global review
Arpita H. Bhatt,Sharon Priyadarshini,Aiswarya Acharath Mohanakrishnan,Arash Abri,Melanie L. Sattler,Sorakrich Techapaphawit +5 more
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The hydraulic conductivity of sediments: A pore size perspective
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A study of physico-chemical and mineralogical properties of Talcher coal fly ash for stowing in underground coal mines
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Stabilisation of black cotton soil for subgrade application using fly ash geopolymer
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References
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Book
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TL;DR: The Cisaillement Reference Record was created on 2004-09-07, modified on 2016-08-08 as discussed by the authors, and was used for the Mecanique des sols.
Journal ArticleDOI
Engineering Properties of Expansive Clays
Wesley G. Holtz,Harold J. Gibbs +1 more
TL;DR: Expansive clay soils have been encountered at the sites of structures throughout the western United States as discussed by the authors, where most of these structures are hydraulic, and the normal difficulties encountered w...
Journal ArticleDOI
The correlation of index properties with some basic engineering properties of soils
C. P. Wroth,David Muir Wood +1 more
TL;DR: Experimental evidence is produced to show that it is reasonable to assign a unique strength to all soils when at their respective liquid limits, and to redefine the plastic limit as the water conte... as mentioned in this paper.
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Sorptive behavior of trace metals on fly ash in aqueous systems
Thomas L. Theis,John L. Wirth +1 more
TL;DR: In this paper, 11 different fly ashes from coal-fired power plants were subjected to various chemical extractions and washings for determination of their acid-base and heavy metal chemistry, and the results suggested that the relative amounts of lime and amorphous iron oxides on the surface define the ultimate acidic or basic character of fly ash in solution.
Journal ArticleDOI
Engineering Properties of Compacted Fly Ash
Donald H. Gray,Yen-Kuang Lin +1 more
TL;DR: In this article, the authors show that the lower compacted density of fly ash relative to conventional earthfill recommends its use when a fill or embankment must be constructed over soft, compressible ground.