Sk Muiz Sk Abdul Razak
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Preferred name
Sk Muiz Sk Abdul Razak
Official Name
Sk Muiz, Sk Abdul Razak
Main Affiliation
Scopus Author ID
57202287923

Research Output
Now showing 1 - 2 of 2
  • Publication
    Properties of self-compacting concrete containing palm oil fuel ash and rice husk ash
    (Trans Tech Publications Ltd., 2023)
    Ahmad Nurfaidhi Rizalman
    ;
    Mohd Khairulizzat Mohd Bisi
    ;
    Sk Muiz Sk Abdul Razak
    ;
    Mazizah Ezdiani Mohamad
    Palm fuel ash (POFA) and rice husk ash (RHA) are usually disposed to open areas and landfills without treatment, resulting in environmental problems. Both materials fulfilled the criteria as pozzolanic material, thus can be used as substitutes to cement. This paper presents the comparison of fresh and hardened properties between self-compacting concrete (SCC) containing POFA and RHA. The SCC mixtures were produced based on water/binder ratio of 0.6. Both POFA and RHA were introduced in concrete replacing 0%, 10%, 20% and 30% of cement by weight. The fresh SCC was tested for three (3) fresh properties including filling ability, passing ability and segregation resistance. Meanwhile, the hardened properties of concrete were tested for its compressive strength. The fresh properties of SCC incorporating POFA and RHA fulfilled all the requirements of SCC which include the filling ability, passing ability and segregation resistance. Meanwhile, SCC containing RHA had higher compressive strength than the SCC containing POFA for all different replacement level. This is because RHA had higher SiO2 content than POFA, thus promote more pozzolanic reaction to improve the strength of concrete. Furthermore, the optimum replacement level of POFA and RHA in SCC were 10% and 20%, respectively. However, the compressive strength of both SCC containing POFA and RHA were still lower than the control SCC. It is suggested that the SCC containing POFA and RHA to be cured for longer period to achieve better or equivalent strength to the control SCC.
  • Publication
    Improving sustainability of road construction by partial replacement of natural aggregates in subbase layer with crushed brick and reclaimed asphalt pavement
    (IOP Publishing, 2023)
    Sk Muiz Sk Abdul Razak
    ;
    Norhaizura Yahya
    ;
    Mohd Zulham Affandi Mohd Zahid
    ;
    Ainis Khairunnisa Bulkini
    ;
    Mohd Irwan Adiyanto
    ;
    Noor Sheena Herayani Harith
    ;
    Ahmad Nurfaidhi Rizalman
    ;
    Mazizah Ezdiani Mohamad
    Reducing dependent on naturally sourced materials is among the priority in improving the sustainability of road construction. The subbase layer which provides strength and stability across the road profile, comprised mainly of natural aggregates. This study aims to explore the feasibility of partial replacement of natural aggregates in subbase layer with 20% Crushed Brick (CB) and 20 to 50% Reclaimed Asphalt Pavement (RAP). California Bearing Ratio (CBR) test and Constant Head Permeability tests were carried out to determine the effect of this partial replacement on the geotechnical properties of the subbase layer. The results obtained denotes that the combination of 20% CB and 50% RAP is the optimum partial replacement of natural aggregates in subbase layer with CB and RAP. The use of CB further complements RAP in improving the stiffness and compressibility of the subbase layer while contributing significantly toward sustainability in road construction.