Browsing Mohd Mustafa Al Bakri Abdullah, Prof. Dr. by Author "Liew, Yun-Ming"

Now showing items 1-5 of 5

    • 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 ...

    • Optimizing of the cementitious composite matrix by addition of steel wool fibers (chopped) based on physical and mechanical analysis 

      Akrm A Rmdan, Amer; Mohd Mustafa Al Bakri, Abdullah; Liew, Yun-Ming; Ikmal Hakem, Aziz; Wysłocki, Jerzy J.; Muhammad Faheem, Mohd Tahir; Sochacki, Wojciech; Garus, Sebastian; Gondro, Joanna; Hetham A, . R. Amer (MDPI AG, 2021-02)
      The demand for durable, resistant, and high-strength structural material has led to the use of fibers as reinforcing elements. This paper presents an investigation into the inclusion of chopped steel wool fibers (CSWFs) ...

    • Porous metakaolin geopolymers with tailored thermal conductivity 

      Nur Ain, Jaya; Liew, Yun-Ming; Mohd Mustafa Al Bakri, Abdullah; ChengYong, Heah (IOP Publishing Ltd, 2019-08)
      In this work, a novel lightweight metakaolin geopolymers were produced by using hydrogen peroxide as foaming agent. The influence of the hydrogen peroxide incorporation content (0.25 – 1.25%) on density, compressive strength ...

    • 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 ...