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Properties of artificial aggregates fabricated with various heating conditions

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2010, 20(6), pp.301-306
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

Kangduk Kim 1 KANG SEUNG GU 1

1경기대학교

Accredited

ABSTRACT

The artificial aggregates were fabricated by using the inorganic wastes, dredged soil produced at a dredging work. The input temperature (800~1000oC), output temperature (1100~1200oC) and heating rate (5~10oC/min) in sintering process were controlled to fabricate the aggregates with various value of density and water absorption, and their properties were analyzed as a function of those factors. The specimens sintered at the lower input temperature showed the higher density and the lower water absorption while those with higher input temperature had many pores inside of the aggregates,lower density and higher water absorption. Also increasing the input temperature accelerated the black core phenomenon in the aggregates. The bloating phenomena which the gigantic pores were generated inside the aggregates were improved as increasing the output temperature, but its effect was lower than that of input temperature. It could be realized that the bloating tendency was improved from the results that the density was increased and water absorption was decreased with increasing heating rate from 5 to 10oC/min. It was found that the artificial aggregates of light or heavy weight with various value of density and water absorption could be fabricated by using dredged soils naturally involving gas and fluxing components by controlling the sintering conditions.

Citation status

* References for papers published after 2023 are currently being built.

This paper was written with support from the National Research Foundation of Korea.