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  • Publication
    Thermal insulation and mechanical properties in the presence of glas bubble in fly ash geopolymer paste
    ( 2021)
    Noor Fifinatasha Shahedan
    ;
    ; ; ; ;
    Ikmal Hakem A Aziz
    ;
    Aeslina Abdul Kadir
    ;
    Andrei Victor Sandu
    ;
    The density, compressive strength, and thermal insulation properties of fly ash geopolymer paste are reported. Novel insulation material of glass bubble was used as a replacement of fly ash binder to significantly enhance the mechanical and thermal properties compared to the geopolymer paste. The results showed that the density and compressive strength of 50% glass bubble was 1.45 g/ ely, meeting the standard requirement for structural concrete. Meanwhile, the compatibility of 50% glass bubbles tested showed that the thermal conductivity (0.898 W/mK), specific heat (2.141 MJ/m3 K), and thermal diffusivity(0.572 mm2/s) in meeting the same requirement. The improvement of thermal insulation properties revealed the potential use of glass bubbles as an insulation material in construction material