The Korean Journal of Ceramics

The Korean Ceramic Society (한국세라믹학회)
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Consolidation of Quartz Powder by the Geopolymer Technique

  • Ikeda, Ko (Department of Advanced Materials Science and Engineering, Yamaguchi University) ;
  • Nakamura, Yoshinori (Department of Advanced Materials Science and Engineering, Yamaguchi University)
  • Published : 2000.06.01
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Abstract

The geopolymer technique may be a future-oriented technology for saving energies and resources. This technique requires 3 fundamental elements so-called filler, hardener and geopolymer liquor being generally an alkaline silicate solution. Quartz powder, water quenched granulated blast furnace slag and sodium silicate solution prepared from $Na_2O\cdot2SiO_2$were chosen for these three elements. After mixing these starting materials in appropriate proportions, monoliths were prepared by casting at room temperature. Strength tests showed the following results for 28d age speciment: 7.9-12.7 MPa in flexural strength and 20.2-32.8 MPa in compressive strength, depending on geopolymer liquor/solid ratio, P/S and fineness of the quartz powders used.

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