Abstrakt
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/cm3 and 42.5 MPa, respectively, 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/m3K), 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.
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Autorzy i Afiliacje
Noor Fifinatasha Shahedan
1
ORCID:
Mohd Mustafa Al Bakri Abdullah
1
2
ORCID:
Norsuria Mahmed
1
2
ORCID:
Liew Yun Ming
1
2
ORCID:
Shayfull Zamree Abd Rahim
1
ORCID:
Ikmal Hakem A Aziz
1
ORCID:
Aeslina Abdul Kadir
3
ORCID:
Andrei Victor Sandu
4
ORCID:
Mohd Fathullah Ghazali
1
ORCID:
- Universiti Malaysia Perlis (UniMAP), Center of Excellence Geopolyme & Green Technology (CEGeoGTech), Perlis, Malaysia
- Universiti Malaysia Perlis (UniMAP), Faculty of Chemical Engineering Technology, Perlis, Malaysia
- Universiti Tun Hussein Onn Malaysia, Faculty of Civil and Environmental Engineering, Johor, Malaysia
- Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, Iasi, Romania