Browsing Mohd Mustafa Al Bakri Abdullah, Prof. Dr. by Title

Now showing items 95-114 of 279

    • Estimation of missing values in air pollution data using single imputation techniques 

      Norazian, Mohamed Noor; Shukri, Yahaya Ahmad; Azam, Ramli Nor; Mohd. Mustafa Al Bakri, Abdullah (Science Society of Thailand, 2008)
      Air pollution data obtained using automated machines often contain missing values which can cause bias due to systematic differences between observed and unobserved data. We used interpolation and mean imputation techniques ...

    • Evaluation of the effect of silica fume on amorphous fly ash geopolymers exposed to elevated temperature 

      Li, Ong Huey; Yun-Ming, Liew; Cheng-Yong, Heah; Ridho, Bayuaji; Mohd Mustafa Al Bakri, Abdullah; Loong, Foo Kai; Jin, Tan Soo; Teng, Ng Hui; Nabiałek, Marcin; Jeż, Bartłomiej; Yong Sing, Ng (MDPI AG, 2021-01)
      The properties of amorphous geopolymer with silica fume addition after heat treatment was rarely reported in the geopolymer field. Geopolymer was prepared by mixing fly ash and alkali activator. The silica fume was added ...

    • Extraction of nitrogen, phosphorus and potassium from food waste under elevated temperature by heat induced bath method 

      Mohamad Anuar, Kamaruddin; N. F., Ahmad; Sandu, I. G.; Alrozi, R.; Sandu, I.; Mohd Mustafa Al Bakri, Abdullah (IOP Publishing Ltd, 2019-07)
      38,000 tonnes of waste is generated per day in Malaysia and 15,000 tonnes of that are food wastes. This waste should be recovered to produce a new valuable product that brings benefits such as fertiliser because it contains ...

    • Fabrication of porous ceramic-geopolymer based material to improve water absorption and retention in construction materials: a review 

      Noorina Hidayu, Jamil; ‪Wan Mohd Arif, W Ibrahim; Mohd Mustafa Al Bakri, Abdullah; Sandu, Andrei Victor; Muhammad Faheem, Mohd Tahir (IOP Publishing Ltd, 2017-06)
      Porous ceramic nowadays has been investigated for a variety of its application such as filters, lightweight structural component and others due to their specific properties such as high surface area, stability and permeability. ...

    • 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 ...

    • Feasibility study on composition and mechanical properties of marine clay based geopolymer brick 

      Mohammad Tamizi, Selimin; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liyana, Jamaludin; Aeslina, Abdul Kadir, Dr. (Trans Tech Publications, 2014)
      Geopolymer is an inorganic polymer performed in synthesis process of an aluminosilicate material which activated by alkaline activator solution. Marine clay, considered to be a waste substance which have an important ...

    • Filling missing data using interpolation methods: Study on the effect of fitting distribution 

      Norazian, Mohamed Noor; Ahmad Shukri, Yahaya, Prof. Madya; Nor Azam, Ramli, Prof. Dr.; Mohd Mustafa Al Bakri, Abdullah (Trans Tech Publications, 2014)
      The presence of missing values in statistical survey data is an important issue to deal with. These data usually contained missing values due to many factors such as machine failures, changes in the siting monitors, routine ...

    • Fire resistance evaluation of lightweight geopolymer concrete system exposed to elevated temperatures of 100-800 °C 

      Omar A., Abdulkareem; Mohd Mustafa Al-Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr. (Trans Tech Publications, 2014)
      This paper reports the fire resistance property of a lightweight aggregate geopolymer concrete (LWAGC) material synthesized by the alkali-activation of locally source fly ash (FA) after exposed to elevated temperatures ...

    • Fire-shield paint: A new technology approach 

      Mohd Mustafa Al Bakri, Abdullah, Dr. (Universiti Malaysia Perlis (UniMAP)Center of Excellence Geopolymer and Green Technology (CEGeoTech), 2014-05)
      During a fire hazard, fire directly contacts with the building structures, causing the heat transfer into the structures in very fast moments. This leads to the substantial deterioration of strength of support structures ...

    • 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 ...

    • Friction and braking application of unhazardous palm slag brake pad composite 

      Norizzahthul Ainaa, Abdul Khoni; Che Mohd Ruzaidi, Ghazali; Mohd Mustafa Al Bakri, Abdullah (IOP Publishing Ltd, 2018-03)
      This paper reveals new alternative friction materials for brake pads. Palm slag was studied as new friction materials in brake pads but its much harder made it difficult to be applied. As a way to reduce the hardness, tire ...

    • General properties of kaolin geopolymers 

      Heah, Cheng Yong; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohd Mustafa Al-Bakri, Abdullah; Mohamed, Bnhussain, Prof. Dr.; Luqman, Musa, Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Liew, Yun Ming (American Scientific Publishers, 2013-01)
      This paper reported the properties of kaolin geopolymers in term of the bulk density, compressive strength, qualitative observation and SEM analysis of the kaolin geopolymers. Kaolin geopolymers were synthesized through ...

    • Geopolymerization technology for soil stabilization application 

      Mohd Mustafa Al Bakri, Abdullah; Sharifah Zaliha, Syed Zuber; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohammed bin Hussain; Muhammad Faheem, Mohd Tahir; Fauziah, Ahmad; Norazian, Mohammed Nor; Noor Fifinatasha, Shahedan (Universiti Malaysia Perlis (UniMAP)Center of Excellent Geopolymer & Green Technology (CEGeoTech), 2014-05)
      • Treatment for soil stabilization • Easy and fast treatment process

    • Geopolymers and their uses: review 

      Nergis, Dumitru Doru Burduhos; Mohd Mustafa Al Bakri, Abdullah; Vizureanu, P.; Muhammad Faheem, Mohd Tahir (IOP Publishing Ltd, 2018-06)
      Outlining the past-present history of the study of alumino-silicate materials, it is well known that geopolymers are inorganic polymers obtained from chemical reaction, also known as geopolymerisation, between an alkaline ...

    • Graphene geopolymer hybrid: a review on mechanical properties and piezoelectric effect 

      Nuaim Siddiqi, Danial; Dewi Suriyani, Che Halin; Muhammad Mahyiddin, Ramli; Mohd Mustafa Al Bakri, Abdullah; Mohd Arif Anuar, Mohd Salleh; Siti S., Mat Isa; L. F., A. Talip; N. S., Mazlan (IOP Publishing Ltd, 2019-08)
      A review on graphene geopolymers hybrid is presented, focusing on the mechanical properties and piezoelectric effect. The method and way of mixing graphene with geopolymers are discussed, including form of graphene that ...

    • Halal based sourced EM for turbidity reducing in wastewater treatment 

      Zarina, Zakaria; Noorulnajwa Diyana, Yaacob; Mohd Mustafa Al-Bakri, Abdullah; Che Mohd Ruzaidi, Ghazali, Prof. Madya (Trans Tech Publications, 2014)
      Effective Microorganism (EM) technology was found as the credible solution to solve many environmental problems including wastewater issues. The EM which is in the form of EM mud ball was tested to be effectively used for ...

    • Hari Keluarga KUKUM '03 

      Mohd Mustafa Al Bakri, Abdullah (Kolej Universiti Kejuruteraan Utara Malaysia, 2004-03)

    • High Strength K-Brick: Rapid Set Brick 

      Mohd Mustafa, Al Bakri Abdullah; Mohammad Tamizi, Selimin; Che Mohd Ruzaidi, Ghazali, Assoc. Prof.; Kamarudin, Hussin, Prof. Dr.; Norazian, Mohamed Noor; Mohd Nasir, Ibrahim; Norzaidi, Zainol (School of Materials Engineering, 2008-01-09)

    • Hybrid mold: comparative study of rapid and hard tooling for injection molding application using Metal Epoxy Composite (MEC) 

      Radhwan, Hussin; Safian, Sharif; Nabiałek, Marcin; Shayfull Zamree, Abd Rahim; Mohd Tanwyn, Mohd Khushairi; Mohd Azlan, Suhaimi; Mohd Mustafa Al Bakri, Abdullah; Mohd Hazwan, Mohd Hanid; Wysłocki, Jerzy J.; Bloch, Katarzyna (MDPI AG, 2021-02)
      The mold-making industry is currently facing several challenges, including new competitors in the market as well as the increasing demand for a low volume of precision moldings. The purpose of this research is to appraise ...