Browsing by Author "Heah, Cheng-Yong"

Now showing items 1-3 of 3

    • Effect of alkali concentration on fly ash geopolymers 

      Siti Fatimah Azzahran, Abdullah; Liew, Yun-Ming; Mohd Mustafa Al Bakri, Abdullah; Heah, Cheng-Yong; Khairunnisa, Zulkifly; Kamarudin, Hussin (IOP Publishing Ltd, 2018-03)
      This paper presents the effect of NaOH concentration on fly ash geopolymers with compressive up to 56 MPa at 12M. The physical and mechanical on fly ash geopolymer are investigated. Test results show that the compressive ...

    • Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers 

      Nur Ain, Jaya; Liew, Yun-Ming; Mohd Mustafa Al Bakri, Abdullah; Heah, Cheng-Yong; Kamarudin, Hussin (IOP Publishing Ltd, 2018-03)
      In the present work, the effect of different sodium hydroxide (NaOH) molarity (6M, 8M, 10M, 12M and 14M) on the physical, mechanical and thermal conductivity of metakaolin geopolymers (MkGPs) was investigated. Geopolymers ...

    • Thermal resistance variations of fly ash geopolymers: foaming responses 

      Heah, Cheng-Yong; Liew, Yun-Ming; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin (Springer Nature Limited, 2017-03)
      This paper presents a comparative study of the characteristic of unfoamed and foamed geopolymers after exposure to elevated temperatures (200–800 °C). Unfoamed geopolymers were produced with Class F fly ash and sodium ...