Browsing Conference Papers by Author "Cheng-Yong, Heah"

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    • Correlation of microstructure and flexural strength of fly ash geopolymer of varying molarities 

      Yong-Sing, Ng; Yun-Ming, Liew; Cheng-Yong, Heah; Mohd Mustafa Al Bakri, Abdullah; Hui-Teng, Ng; Amir, Naveed (IOP Publishing Ltd, 2019-08)
      The present work studies and compares the flexural properties of fly ash geopolymer with varying molarity of sodium hydroxide (NaOH). Different molarities of NaOH solution (6M, 8M, 10M, 12M and 14M) are used to prepare the ...

    • Mechanical properties and thermal conductivity of lightweight foamed geopolymer concretes 

      Siti Fatimah Azzahran, Abdullah; Yun-Ming, Liew; Mohd Mustafa Al Bakri, Abdullah; Cheng-Yong, Heah; Khairunnisa, Zulkifly (IOP Publishing Ltd, 2019-08)
      Foamed geopolymer concretes have a better performance in the thermal insulation properties compared to normal geopolymer concretes. In this research, lightweight aggregate geopolymer concretes was incorporated with different ...

    • Microstructural analysis of fly ash-based geopolymers with various alkali concentration 

      Hui-Teng, Ng; Cheng-Yong, Heah; Yun-Ming, Liew; Mohd Mustafa Al Bakri, Abdullah; Yong-Sing, Ng (IOP Publishing Ltd, 2019-08)
      In the present work, a comparative study on the effect of different concentration of sodium hydroxide (NaOH) on fly ash-based geopolymer was investigated. The geopolymer synthesis by mixing fly ash with alkali activator ...