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A study on the ecological lightweight aggregates made of bottom ashes and dredged soils

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2007, 17(3), pp.133-137
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

전혜진 1 Yooteak Kim 1

1경기대학교

Accredited

ABSTRACT

Ecological lightweight aggregates were made in order to recycle the dredged soils from the seaside constructionarea and the bottom ashes from the power plant. Various physical and chemical analysis were performed on them toidentify their posibility for applying lightweight concrete fields. Lightweight agregates were made of bottom ashes andbefore mixing. The physical and chemical properties such as density, absorption rate, stability, alkali latency reaction, heavymetal leaching of the lightweight aggregates were tested and analysed by folowing the KS standard procedures. From thesize analysis, the coarse agregates showed a suitable fit on standard particle ranges; however, the fine aggregates showeda large deviation from the standard. The absorption rates were increased with decreasing weight of the agregates. All theaggregates were turned out to be safe by the stability and heavy metal leaching test; however, some of the aggregates wereconfirmed on the border of harmles and posibly harmful region through the alkali latency reactivity test.Key words Ecological lightweight agregates, Bottom ashes, Dredged soils, Lightweight concrete

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