Now showing items 1-20 of 72

    • Alteration in the microstructure of fly ash geopolymer upon exposure to elevated temperatures 

      Omar A., Abdulkareem; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Trans Tech Publications, 2013)
      This paper represents the mechanical and microstructure changes in geopolymeric material synthesized by the alkali activation of locally source fly ash at high temperatures of 400, 600 and 800 °C. The high compressive ...
    • Application of clay - based geopolymer in brick production: a review 

      Muhammad Faheem, Mohd Tahir; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin; Mohammed, Binhussain; Che Mohd Ruzaidi, Ghazali; Mohd Izzat, Ahmad (Trans Tech Publications/Scientific.Net, 2012-12)
      This paper reviews and summarizes the current knowledge and application of clay as a geopolymer material in production of geopolymer brick. As we understand, the nature of source materials give a significant impact to the ...
    • Application of clay - based geopolymer in brick production: A review 

      Muhammad Faheem, Mohd Tahir; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Mohd Izzat, Ahmad (Trans Tech Publications Inc., 2013)
      This paper reviews and summarizes the current knowledge and application of clay as a geopolymer material in production of geopolymer brick. As we understand, the nature of source materials give a significant impact to the ...
    • Characterisation at the bonding zone between fly ash based geopolymer repair materials (GRM) and ordinary portland cement concrete (OPCC) 

      Warid Wazien, Ahmad Zailani; Mohd Mustafa Al Bakri, Abdullah; Mohd Fadzil, Arshad; Rafiza, Abd Razak; Muhammad Faheem, Mohd Tahir; Remy Rozainy, Mohd Arif Zainol; Nabiałek, Marcin; Sandu, Andrei Victor; Wysłocki, Jerzy J.; Błoch, Katarzyna (MDPI AG, 2020-12)
      In recent years, research and development of geopolymers has gained significant interest in the fields of repairs and restoration. This paper investigates the application of a geopolymer as a repair material by implementation ...
    • Characterization of LUSI mud volcano as geopolymer raw material 

      Mohd Mustafa Al Bakri, Abdullah; Rafiza, Abdul Razak; Djwantoro, Hardjito, Dr.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Trans Tech Publications, 2012)
      The mud of mud volcano samples were collected from an eruption site named 'LUSI' (Lumpur "mud" -Sidoarjo), East Java, Indonesia for characterization. Analysis showed that, the major constituents of mud are SiO 2 and Al 2O ...
    • Characterization of LUSI mud volcano as geopolymer raw material: A review 

      Rafiza, Abdul Razak; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Djwantoro, Hardjito, Dr. Ir.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      This paper summarizes the current knowledge about the potential of LUSI mud volcano, East Java, Indonesia as a raw material in geopolymer. Previous experimental study shows that the LUSI mud has a good performance when 5% ...
    • Chemical and physical characterization of boiler ash from palm oil industry waste for geopolymer composite 

      Zarina, Yahya; Mohd Mustafa, Al Bakri Abdullah; Kamarudin, Hussin; Khairul Nizar, Ismail; Andrei Victor, Sandu; Petricǎ, Vizureanu; Rafiza, Abdul Razak (Syscom 18 SRL/ SC BIBLIOTECA CHIMIEI SA, 2013-12)
      The characterizations of boiler ash waste from waste of palm oil industry were performed. The boiler ash was obtained from the boiler in the palm oil processing factory. The chemical and physical characterization has been ...
    • Chemical reactions in the geopolymerisation process using fly ash-based geopolymer: A review 

      Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin; Mohammed Amjad, Hussain; Khairul Nizar, Ismail; Rafiza, Abdul Razak; Mohd Izzat, Ahmad (American-Eurasian Network for Scientific Information (AENSI Publisher), 2011-07)
      The development of our world, demanding the power supply which is produced by combustion of coal. Unfortunately, the million of tons of fly ash and related-products have been generated. To overcome these problems, fly ash ...
    • Comparison of geopolymer fly ash and ordinary Portland cement to the strength of concrete 

      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 (American Scientific Publishers, 2013-12)
      The aim of this study is to evaluate the effect of various fly ash: aggregate ratios by using fly ash (FA) based geopolymer compared to ordinary Portland cement (OPC) on the compressive strength of concrete. The different ...
    • Comparison of original and sintered LUSI mud from East Java, Indonesia as raw material for making a geopolymer 

      Rafiza, Abdul Razak; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Djwantoro, Hardjito, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (American Scientific Publishers, 2013-01)
      This paper presents the characterization of LUSI mud from East Java, Indonesia, as a potential raw material for making a geopolymer. Two types of LUSI mud were analyzed, i.e., original LUSI mud and LUSI mud that had been ...
    • Compressive strength and morphology of fly ash based geopolymer as artificial aggregate with different curing temperature 

      Alida, Abdullah; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Zarina, Yahya; Mohd Arif Anuar, Mohd Salleh; Nurhamidah, Zakaria; Muhammad Faheem, Mohd Tahir (Trans Tech Publications, 2014)
      This paper presented the compressive strength of geopolymer paste with different NaOH concentration and morphology analysis for sintered artificial aggregate. This artificial aggregate was produce based on mix design with ...
    • Compressive strength of fly ash based geopolymer / glass fiber composite via filament winding 

      Che Mohd Ruzaidi, Ghazali, Prof. Madya; Alida, Abdullah; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Anis Nadhirah, Ismail (Trans Tech Publications, 2014)
      In general, filament winding technique is used to fabricate the composite pipes using continuous fiber and matrix resin. In this study, fly ash based geopolymer resin composites reinforced by continuous glass fiber were ...
    • 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 ...
    • Correlation of the Na2SiO3 to NaOH Ratios and Solid to Liquid Ratios to the Kedah’s Soil Strength 

      Hazamaah Nur, Hamzah; Mohd Mustafa Al Bakri, Abdullah; Heah, Cheng Yong; Mohd Remy Rozainy, Mohd Arif Zainol; Aiman, Mahmad Nor; Warid Wazien, Ahmad Zailani (EDP Sciences, 2016)
      Geopolymer was used for the soil stabilization of Kedah’s soil at different ratios of solid to liquid and Na2SiO3 to NaOH in order to achieve the desired compressive strength. The geopolymerization process which produces ...
    • Development of pilot plant for novel geopolymer brick making machine 

      Che Mohd Ruzaidi, Ghazali, Assoc. Prof.; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Muhammad Faheem, Mohd Tahir; Shamsul, Baharin Jamaludin, Prof. Dr.; Mohammad Tamizi, Selimin; Muhd Izzat, Ahmad; Alida, Abdullah (American-Eurasian Network for Scientific Information, 2013)
      With rapid growing country's development and rose in construction activity, rising demand of building materials and increased construction wastes have encouraged the development of new building materials. Geopolymer based ...
    • Effect of aluminium powder on kaolin-based geopolymer characteristic and removal of Cu²⁺ 

      Nurliyana, Ariffin; Mohd Mustafa Al Bakri, Abdullah; Postawa, Przemysław; Shayfull Zamree, Abd Rahim; Mohd Remy Rozainy, Mohd Arif Zainol; Ramadhansyah, Putra Jaya; Sliwa, Agata; Mohd Firdaus, Omar (MDPI AG, 2021-02)
      This current work focuses on the synthesis of geopolymer-based adsorbent which uses kaolin as a source material, mixed with alkali solution consisting of 10 M NaOH and Na₂SiO₃ as well as aluminium powder as a foaming agent. ...
    • The effect of corrosive environment on geopolymer concrete tensile strength 

      Ridho, Bayuaji; Sigit, Darmawan; Nur, Ahmad Husin; Boedi, Wibowo; Srie Subekti; Mohd Mustafa Al Bakri, Abdullah; Totok Ruki, Biyanto (EDP Sciences, 2017-02)
      This study has the purpose to explore the potential of geopolymer concrete tensile strength in particular on the effects of corrosive environments. Geopolymer concrete, concrete technology used no OPC that has advantages, ...
    • Effect of Crumb Rubber on compressive strength of fly ash based Geopolymer concrete 

      Ahmad Azrem, Azmi; Mohd Mustafa Al Bakri, Abdullah; Che Mohd Ruzaidi, Ghazali; Sandu, Andrei Victor; Kamarudin, Hussin (EDP Sciences, 2016)
      This study explores the effect of different percentage of crumb rubber on compressive strength of fly ash based geopolymer concrete. This research attempted to produce rubberized geopolymer concrete as an environmentally ...
    • Effect of curing regimes on metakaolin geopolymer pastes produced from geopolymer powder 

      Liew, Yun Ming; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah; Mohammed, Bnhussain; Luqman, Musa; Khairul Nizar, Ismail, Prof. Madya Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Cheng, Yong Heah (Scientific.Net/Trans Tech Publications, 2012-12)
      The properties of metakaolin geopolymer paste are affected by the alkali concentration, the initial raw materials, solidification process, and amount of mixing water as well as the curing conditions. This study aimed to ...
    • The effect of curing temperature on physical and chemical properties of geopolymers 

      Mohd Mustafa, Al Bakri Abdullah; Kamarudin, Hussin; Mohammed Amjad, Hussain; Khairul Nizar, Ismail; Zarina, Yahya; Rafiza, Abdul Razak (Elsevier BV, 2011)
      Fly ash-based geopolymers required heat to increase the geopolymerization process in order to obtain higher compressive strength. As such, geopolymer samples were prepared using different curing temperatures (room temperature, ...