Zuhayr Md Ghazaly
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Zuhayr Md Ghazaly
Official Name
Zuhayr, Md Ghazaly
Alternative Name
Ghazaly, Zuhayr Md
Ghazaly, Zuhayr Md.
Main Affiliation
Scopus Author ID
55992849000
Researcher ID
EVK-4004-2022

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  • Publication
    A study on the effect of flooding depths and duration on soil subgrade performance and stability
    (GEOMATE International Society, 2020)
    Muhd Shahril Nizam Ismail
    ;
    Ghani, Abdul Naser Abdul
    ;
    Zuhayr Md Ghazaly
    ;
    Close Dafalla, Muawia
    In the event of flooding, the road infrastructure especially the subgrade will be affected in terms of its capacity to support the pavement. It is well known that subgrade deterioration will eventually cause pavement failure. However, little is known on how the subgrade reacts to different flooding conditions especially in terms of the depth and duration of the floods. The aims of this study are to evaluate the moisture content variation and strength of the subgrade using the flood simulation model. The pavement loading characteristics are referred to the Manual on Flexible Pavement Design published by the Malaysian Public Works Department (ATJ 5/85 Rev. 2013). The flood parameters used for this experimental model are based on actual data of flooding events from 1991 to 2014. It includes the parameters of flood water level, flood duration and repeated flooding. The samples were exposed to flooding for a duration of 3, 24 and 48 hours for unrepeated flooding and 2, 5, and 24 hours for repeated flooding. Flood water levels were set to 0.3 m, 0.6 m and 1 m. This study shows that there is a strong relationship between moisture content and subgrade strength. The increase in the duration of the flooding affected the performance of the subgrade due to the increasing moisture content. The study also revealed that the rate of deterioration in subgrade strength for second flooding events is 15% more than for first flooding events. The result of this experiment will be used to develop the basis for including flooding characteristics in the modified California Bearing Ratio test for soils in flood prone areas.
  • Publication
    Load-Displacement Behaviors of Reinforced Concrete Beam Embedded with Galvanized Steel Cable: Comparison Between Experiment and Finite Element Analysis
    ( 2020-01-01)
    Mustaqqim Abdul Rahim
    ;
    Abdul Ghani A.N.
    ;
    Muhammad Arkam Che Munaaim
    ;
    Zuhayr Md Ghazaly
    Lightning is a natural phenomenon which occurred when the upper atmosphere becomes unstable due to rising air currents. Lightning can be one of the natural causes of human injuries or damage to electrical equipment. In order to create a system to protect buildings from this natural phenomenon, the Lightning Protection System (LPS) was introduced. However, various problems have been associated with this conventional method. A common problem related to external lightning protection cables is corrosion. Therefore, the newly arrangement of lightning protection cable was proposed and investigated. Galvanized steel cable was used in this research due to suitability of the materials to be embedded inside reinforced concrete beam. Load-displacement behavior from the three (3) point flexural test was compared with the finding from the Finite Element Analysis (FEA). From the result, FEA showed slightly higher than experiment result at the maximum load.
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