Paper Title:
Effect on Compressive Strength by Mixing Ratio of MSWI Melting Slag/Bottom Ash
  Abstract

In this work, inorganic paste was made from melting slag (MS) of MSWI ash and MSWI bottom ash (MBA) by geopolymer technique. Heavy metals such as Pb and Cu are highly contained in MBA. In the view of environmental protection and resource conservation, recycling of MSWI ash is desirable. MS and MBA were mixed to make inorganic paste. Compressive strength was measured to evaluate the characteristics of inorganic paste after the period of 1, 3 and 7day. Compressive strength of almost 90 MPa was obtained at the mixing ratio of MS : MBA = 9 : 1. And the crystalloid and crystal structure was analyzed by FTIR and XRD. Korea Standard leaching Test (KSLT) is also used to evaluate the environmental safety of inorganic paste. The leached concentration of Pb and Cu were 0.44 ppm and 0.15 ppm, respectively. According to this result, heavy metals were safety immobilized and stabilized.

  Info
Periodical
Materials Science Forum (Volumes 620-622)
Edited by
Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee
Pages
631-634
DOI
10.4028/www.scientific.net/MSF.620-622.631
Citation
W. K. Lee, E. Z. Park, J. H. Lee, Y. S. Yoo, "Effect on Compressive Strength by Mixing Ratio of MSWI Melting Slag/Bottom Ash", Materials Science Forum, Vols. 620-622, pp. 631-634, 2009
Online since
April 2009
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Price
$32.00
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