Browsing Mohd Mustafa Al Bakri Abdullah, Prof. Dr. by Subject "Porosity"

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    • 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 ...

    • Image analysis of surface porosity mortar containing processed spent bleaching earth 

      Wei Chong, Beng; Rokiah, Othman; Ramadhansyah, Putra Jaya; Shu Ing, Doh; Li, Xiaofeng; Mohd Haziman, Wan Ibrahim; Mohd Mustafa Al Bakri, Abdullah; Sandu, Andrei Victor; Płoszaj, Bartosz; Szmidla, Janusz; Stachowiak, Tomasz (MDPI AG, 2021-03-28)
      Image analysis techniques are gaining popularity in the studies of civil engineering materials. However, the current established image analysis methods often require advanced machinery and strict image acquisition procedures ...

    • A study on relationship between porosity and compressive strength for geopolymer paste 

      Farah Farhana, Zainal; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Azmi, Rahmat, Prof.; Mohd Mustafa Al-Bakri, Abdullah (Trans Tech Publications, 2013-12)
      This paper presents a study on the relationship between porosity and compressive strength for geopolymer paste. In this research, geopolymer paste was made from fly ash class F based geopolymer mixed with alkaline activator; ...