Muhammad Munsif Ahmad
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Preferred name
Muhammad Munsif Ahmad
Official Name
Muhammad Munsif , Ahmad
Alternative Name
Ahmad, Muhammad Munsif
Ahmad, M.
Ahmad, M. M.
Main Affiliation
Scopus Author ID
57195987713
Researcher ID
HDO-0015-2022

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  • Publication
    The effect of fly ash to alkaline activator ratio to the mechanical properties of stabilized lateritic soil using fly ash based geopolymer
    ( 2023-01-01)
    Muhammad Munsif Ahmad
    ;
    Khairunnisa Muhamad
    ;
    Razak R.A.
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Othman N.A.F.
    ;
    Nurul Huda H.
    Stabilization of fill soil improve its physical and mechanical properties and led to better load carrying capacity and enable steeper temporary slope to be formed during construction period. In this study an industrial by-product, fly-ash (FA), was used as precursor to produce geopolymer as chemical stabilizer to improve the physical and mechanical properties of fill soil. Sodium silicate solution (Na2SiO3) and sodium hydroxide (NaOH) at a concentration of 15 molars were combined as the liquid alkaline activator (AA). The effect of different fly ash to alkaline activator ratio (0, 1.0, 1.5, 2.5 and 3.0) on the physical and mechanical properties of treated fill soil were measured using Atterberg limit test and unconfined compressive strength (UCS) test. All sample were tested at 1 day and 3 days of curing period under room temperature. The result indicates that the highest compressive strength is obtained with fly ash to alkaline activator ratio of 2.5 for both 1 day and 3 days of curing. In addition, the plasticity index of the treated sample for all fly ash/alkaline activator were lower than that of the untreated fill soil.
      8  32
  • Publication
    Use of Palm Kernel Shell from Agriculture Waste as Partial Replacement for Coarse Aggregate in Hot Mix Asphalt
    ( 2024-04-19)
    Liyana Ahmad Sofri
    ;
    Muhammad Faiz Zainal
    ;
    Muhammad Munsif Ahmad
    ;
    Khairunnisa Muhamad
    ;
    Ahmad Faizal Mansor
    Palm kernel shell (PKS) is known as a waste material that produced by oil palm factory. In this research, PKS will be used as an alternative to improve the strength and performance of hot mix asphalt (HMA). The bitumen grade of 60/70 PEN and ACW14 had been used in the research. To investigate the strength of PKS in term of designing wearing course, bitumen content of 4% to 6% and different mix design with different percentages content of PKS were provided. The total specimens prepared in this research are 45 specimens. The specific gravity of PKS was lower and showed the high capacity in water absorption compare to the natural aggregate. The increment of percentage for PKS in HMA make the strength in Marshall Specimen became decreases as stated in the result and discussion. Result of optimum bitumen content for PKS 10, PKS 30 and PKS 50 were 4.72%, 4.86% and 4.90% individually. All optimum bitumen content in this research was satisfied with JKR Standard 2008 in term of the design parameter. The specimen of PKS 10, PKS 30 was classified as heavy traffic and PKS 50 was classified as medium traffic. PKS 10 was shown as a good partial replacement for natural aggregate due to the admissibility of parameter, environmental friendly factor and cheapest in costing.
      2  38