Investigation of Plasticity Index of Clay Bodies Including Bottom Ashes from the Power Plant

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Plasticity indexes (PI) of clay bodies including bottom ashes (BA) and various wastes by using Atterberg limits were measured for the effective recycling of coal bottom ashes from the power plant. Coal bottom ash (BA)-red clay (RC or simply clay), dredged soil (DS)-BA, coal fly ash (FA)-red clay, DS-FA were used as samples for the PI measurement. From the comparison of clay bodies with BA and DS, PI of DS-BA body was higher than that of BA-red clay body because liquid limit (LL) was high and plastic limit (PL) of DS-red clay was low, respectively. Comparing clay bodies with FA and BA, PI of BA-clay body was higher than that of FA-clay body because both LL and PL of BA-clay body were low. When stone ashes and sewage sludge (SS) were added to BA-clay bodies, PI decreased with increasing both stone ash and sewage sludge contents. It is concluded that the measurement of plasticity index can be used as an indicator of forming performance of green bodies with various compositions.

Info:

Periodical:

Materials Science Forum (Volumes 544-545)

Edited by:

Hyungsun Kim, Junichi Hojo and Soo Wohn Lee

Pages:

585-588

Citation:

H. J. Chun et al., "Investigation of Plasticity Index of Clay Bodies Including Bottom Ashes from the Power Plant", Materials Science Forum, Vols. 544-545, pp. 585-588, 2007

Online since:

May 2007

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$38.00

[1] Information personally obtained from Korea Nam Dong Electrics in (2006).

[2] Song MinSeob, Jang JeaBong, Cho BongSuk, Kim JaeHwan, Kim YoungRo and Kim MooHan : An Experimental Study On Properties of Mortar using Bottom Ash Produced in Power Plant, Journal of the Architectural Institute of Korea, Vol. 23 No. 1 (2003).

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