Ahmad Faizal Mansor
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Preferred name
Ahmad Faizal Mansor
Official Name
Ahmad Faizal, Mansor
Alternative Name
Mansor, Ahmad Faizal
Mansor, A. F.
Mansor, A. Faizal
Main Affiliation
Scopus Author ID
57186430100
Researcher ID
IMX-6574-2023

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  • Publication
    Effect of natural fibers on the soil compaction characteristics
    ( 2020-06-10)
    Nor Faizah Bawadi
    ;
    Ahmad N.S.
    ;
    Ahmad Faizal Mansor
    ;
    Shamilah Anudai @ Anuar
    ;
    Mohd Asri Ab Rahim
    Clay soils are considered as a problematic soil in term of water absorption rate. The ideas of soil improvement method had been widely used to modify the physical and mechanical properties of clay soil. This study aims to identify the optimum percentage mixing of natural fibers in influencing the compaction characteristics. X - ray fluorescent test (X-RF) and Standard Proctor test has been performed to determine the chemical composition of natural fibers and compaction characteristics of soil samples. Natural fibers such as banana, kenaf, and coconut coir were used as a natural soil stabilizer with varying percentage mixing to increase the properties and stability of soil samples. Experimental data obtained from compaction test shows that the appropriate maximum dry density and optimum moisture content for each natural fiber are at 0.5% natural fibers mixing. In this study, the maximum dry density and optimum moisture content for untreated samples are 1650kg/m3 and 7.8%, respectively. Meanwhile, for treated soil samples that mixed with banana, coconut and kenaf fibers are 1760kg/m3, 1780kg/m3, 1670kg/m3 and 8.2%, 8%, 11%, respectively. Hence, 0.5% mixing with banana fibers indicated the best possible amount of dry density and moisture content among other natural fibers. Therefore, this study proved that natural fibers can act as a good natural soil stabilizer in increasing stability of clay soil.
  • Publication
    Influence of Banana Fiber on Shear Strength of Clay Soil
    ( 2020-07-09)
    Nor Faizah Bawadi
    ;
    Alhamidi M.A.A.
    ;
    Ahmad Faizal Mansor
    ;
    Shamilah Anudai @ Anuar
    Recently, the agricultural waste have been enticed increasing attention in geotechnical engineering as a natural soil reinforcement in improving strength and stability of soils. Agricultural waste fiber was chosen as it is cheap, locally available, bio-degradable and eco-friendly. In this study, the implementation of banana fibers has been used as a natural soil reinforcement in influencing the strength of clay soil. In order to investigate the influence of banana fiber in strengthen the clay soil, three different percentage mixing of banana fiber in clay soil has been tested using Unconsolidated Undrained Triaxial and California Ratio Bearing (CBR) tests. The results of X-Ray Fluorescense (X-RF) indicated that average 45% of chemical compositions inside the banana fibers are calcium hydroxide which resulting the pozzolanic reactions and lead to the modification of soil properties and improve the strength of soil. This research is important in order to find the suitability of banana fiber as admixture in soil stabilization. Banana fiber as admixture in soil stabilization will contribute to conservation of the environment. The results from the tests conducted have shown that the soil treated with 1% fibre content improved termendously in term of shear strength compared to untreated sample. However, based on the regression analysis, 0.5% mixing of banana content indicate the optimum percentage mixing of banana fiber in clay soil.