Mechanical Characteristics of High Compressive Strength Geopolymers Considering Chemical and Physical Properties of Binders

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  • KOUMOTO Tatsuya
    Geopolymer Research Laboratory Saga University
  • KANG Hyung-Been
    Engineering Section, Okinawa Institute of Science and Technology Graduate University
  • KOMOTO Shinya
    Imaging Section, Okinawa Institute of Science and Technology Graduate University

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Other Title
  • バインダーの化学的・物理的性質を考慮した高圧縮強度ジオポリマーの力学特性
  • バインダー ノ カガクテキ ・ ブツリテキ セイシツ オ コウリョ シタ コウアッシュク キョウド ジオポリマー ノ リキガク トクセイ

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<p>Geopolymers are composite hard materials made by mixing industrial by-products such as fly ash, steel making slags and garbage melting furnace slags as binders and alkaline liquid activators such as NaOH and sodium silicate as activator. The compressive strength of geopolymer qu is considered as a function of w which is the weight ratio of activator and binder and η which is the weight ratio of liquid NaOH and sodium silicate. The maximum compressive strength qumax was defined as the maximum value among the peak values of qu which were obtained for various values of w and η. This research discussed the chemical and mechanical characteristics, and the prediction method for the qumax by using scanning electron microscopy (SEM) and X-ray diffraction (XRD) observation of binders.</p>

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