Mohd Mustafa Al Bakri Abdullah, Prof. Dr.: Recent submissions

Now showing items 221-240 of 277

    • Correlation between Na 2SiO 3/NaOH ratio and fly ash/alkaline activator ratio to the strength of geopolymer 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Zarina, Yahya; Rafiza, Abdul Razak (Trans Tech Publications, 2012)
      Geopolymer requires an alkaline activator to induce it pozzolanic property and to accelerate the geopolymerisation process. The geopolymerisation process occurs due to the mixing of fly ash, sodium silicate and sodium ...

    • Microstructure study on optimization of high strength fly ash based geopolymer 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Rafiza, Abdul Razak; Zarina, Yahya (Trans Tech Publications, 2012)
      The compressive strength and microstructural characteristics of fly ash based geopolymer with alkaline activator solution were investigated. The sodium hydroxide and sodium silicate were mixed together to form an alkaline ...

    • Effect of alkali concentration on mechanical properties of kaolin geopolymers 

      Heah, Cheng Yong; Kamarudin, Hussin, Brig. Gen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Mohammed, Husain; Luqman, Musa; Khairul Nizar, Ismail; Liew, Yun Ming (Foundation for Materials Science and Engineering, 2012)
      Alkali concentration is the most significant factor in geopolymerization process that must be taken into consideration during the synthesis of kaolin geopolymers. The kaolin geopolymers were prepared by mixing kaolin and ...

    • Effect of mechanical activation on kaolin-based geopolymers 

      Cheng, Yong Heah; Kamarudin, Hussin, Brig. Gen. Dato' Prof. Dr.; Mohd Mustafa Al-Bakri, Abdullah; Mohammed, Hussain; Luqman, Musa; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali; Liew, Y. M. (Trans Tech Publications, 2012)
      Raw materials kaolin was subjected to mechanical modification; the effect of the mechanical activation of kaolin on the compressive strength and morphological properties of the geopolymers has been studied. Mechanical ...

    • Feasibility of producing wood fibre-reinforced geopolymer composites (WFRGC) 

      Mohd Mustafa Al Bakri, Abdullah; Mohd Izzat, Ahmad; Muhammad Faheem, Mohd Tahir; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Rafiza, Abdul Razak; Zarina, Yahya; Liyana, Jamaludin (Trans Tech Publications, 2013)
      Wood fibres have long been known as a fibre reinforcement for concrete. Due to its availability and low production cost, this natural fibre has been used in less developed country where conventional construction materials ...

    • Mechanical properties of Sn-0.7Cu/Si 3N 4 lead-free composite solder 

      Mohd Arif Anuar, Mohd Salleh; Mohd Mustafa Al-Bakri, Abdullah; Muhammad Hafiz, Zan Hazizi; Flora, Somidin; Noor Farhani, Mohd Alui; Zainal Arifin, Ahmad, Prof. (Elsevier B.V., 2012-10)
      The use of reinforcing high performance ceramic particulates in monolithic lead-free solder is one way to improve the service temperature and mechanical behavior of a solder joint. In this study, various compositions of ...

    • Lightweight fly ash-based geopolymer concrete 

      Omar A., Abdulkareem; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Prof. Madya Dr. (Trans Tech Publications, 2013)
      The experiments of this study were preformed to study the synthesis process for lightweight aggregate geopolymer concrete (LWAGC) using normal sand as a fine aggregate and expanded clay as lightweight aggregate. The LWAGC ...

    • Three dimensional simulation of thermal pad using nanomaterial, nano-silver in semiconductor and electronic component application 

      Mazlan, Mohamed; Rahim, Atan, Prof. Madya Dr.; Mohd Mustafa Al Bakri, Abdullah; Muhammad Iqbal, Ahmad; Mohd Huzaifah, Yusoff; Fathinul Najib, Ahmad Saad (Trans Tech Publications, 2013)
      Thermal pad is new technology in this world that been used in PLCC in order to reduce junction temperature to the minimum level in electronic components. In electronic industry, the electronic components that exceed 70°C ...

    • Calcined kaolin geopolymeric powder: Influence of water- to geopolymeric powder ratio 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Binhussain, M.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; cheng, Yong Heah (Trans Tech Publications, 2012-07)
      This paper describes the synthesis of calcined kaolin geopolymeric powder from the alkaline activation of calcined kaolin followed by solidification and pulverizing process. The geopolymeric powder was used by just adding ...

    • Influence of solidification process on calcined kaolin geopolymeric powder 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Binhussain, M.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali; Cheng, Yong Heah (Trans Tech Publications, 2012-02)
      This paper aims at investigating the influence of solidification condition on the processing of calcined kaolin geopolymeric powder. This is a new process developed using the geopolymerization process. Geopolymer slurry ...

    • Processing and characterization of calcined kaolin cement powder 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali; Cheng, Yong Heah (Elsevier Ltd, 2012-05)
      Abstract This paper aimed at investigating the possibility of calcined kaolin to produce cement powder that could be an alternative to Portland cement by applying geopolymerization process. Cement paste was firstly made ...

    • Optimization of solids-to-liquid and alkali activator ratios of calcined kaolin geopolymeric powder 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Binhussain, M.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali; Cheng, Yong Heah (Elsevier Ltd, 2012-12)
      This paper investigates the effect of S/L and alkali activator ratios on the synthesis of geopolymeric powder. Geopolymeric powder was synthesized by applying geopolymerization process. By adopting the concept of "just ...

    • Fly ash porous material using geopolymerization process for high temperature exposure 

      Mohd Mustafa Al Bakri, Abdullah; Liyana, Jamaludin; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Mohd Izzat, Ahmad (MDPI AG (Basel, Switzerland), 2012-04)
      This paper presents the results of a study on the effect of temperature on geopolymers manufactured using pozzolanic materials (fly ash). In this paper, we report on our investigation of the performance of porous geopolymers ...

    • Fly ash-based geopolymer lightweight concrete using foaming agent 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain; Khairul Nizar, Ismail, Prof. Madya Dr.; Zarina, Yahya; Rafiza, Abdul Razak (MDPI, Basel, Switzerland., 2012-06)
      In this paper, we report the results of our investigation on the possibility of producing foam concrete by using a geopolymer system. Class C fly ash was mixed with an alkaline activator solution (a mixture of sodium ...

    • The influence of curing periods on the compressive strength of fly ash-based geopolymer at different aging times 

      Omar A., Abdulkareem; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Prof. Madya Dr. (Trans Tech Publications, 2012)
      The results of the current experimental investigation indicate the significant effect of the heating periods on the compressive strength of fly ash-based geopolymers prepared at different alkaline liquid content at both ...

    • Review on fly ash-based geopolymer concrete without portland cement 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Dr. (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      This paper summarizes the factors that affect the properties of fly ash-based geopolymer concrete. Alkaline activator is an important material that controls the properties of geopolymer concrete. The workability of fresh ...

    • Investigating the possibility of utilization of kaolin and the potential of metakaolin to produce green cement for construction purposes-A review 

      Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Liew, Y. M.; Mohd Mustafa Al Bakri, Abdullah; Luqman, Musa, Dr.; Khairul Nizar, I.; Heah, Cheng Yong (INSInet Publication, 2011-09)
      Geopolymers are inorganic alkali aluminosilicate gels, formed from reaction of mineral clays or aluminosilicate-bearing industrial wastes, and treated with alkali silicate solution at 40-80°C. Geopolymers have been studied ...

    • Kajian keberkesanan promosi Universiti Malysia Perlis tahun 2007 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Prof. Dato' Dr.; Julinawati, Suanda; Che Mohd. Ruzaidi, Prof Madya; Abdul Aziz, Mahmudin (Universiti Malaysia Perlis (UniMAP)Jabatan Hal Ehwal Pelajar & Alumni (JHEPA), 2008-08)

    • Potential application of kaolin without calcine as greener concrete: A review 

      Cheng, Yong Heah; Hazlinda, Kamarudin; Mohd Mustafa Al-Bakri, Abdullah; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr; Liew, Y. M. (INSInet Publications, 2011-07)
      Kaolin is a white raw material that has an essential constituent which makes it ideal for industrial applications such as green concrete. Based on a historical review, it appears that green polymeric composites created by ...

    • Optimization of alkaline activator / fly ash ratio on the compressive strength of manufacturing fly ash-based geopolymer 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; O. A. K. A., Karem; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Rafizah, Abu Rashid; Norazian, Mohamed Noor (Trans Tech Publications, 2012)
      Fly ash and a mixture of alkaline activators namely sodium silicate (Waterglass) and sodium hydroxide (NaOH) solution were used for preparing geopolymer. The aim of this research is to determine the optimum value of the ...