Shamshinar Salehuddin
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Shamshinar Salehuddin
Official Name
Shamshinar, Salehuddin
Alternative Name
Salehuddin, Shamshinar
Salehuddin, S.
Salehuddin, Shamshinar Binti
Main Affiliation
Scopus Author ID
55755201700
Researcher ID
FUC-0584-2022

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  • Publication
    Experimental Investigation on the Effectiveness of Truss-Shaped Punching Shear Reinforcement in Flat Slab
    ( 2022-07-18)
    Shamshinar Salehuddin
    ;
    Zaini S.S.
    ;
    Johari M.A.M.
    ;
    Nur Liza Rahim
    ;
    Mustaqqim Abdul Rahim
    The use of reinforced concrete flat slabs in building construction increases the floor-to-floor clearance, expedites site operations, and offers aesthetically rewarding features. However, punching shear failure in a flat slab is brittle in nature and can be potentially catastrophic. Many studies have been conducted to improve the punching shear capacity of flat slabs but some of the proposed punching shear reinforcements were complicated and costly. This research aimed to evaluate the effectiveness of a simple and cost-effective; truss-shaped punching shear reinforcement embedded in a 1200 mm × 1200 mm × 175 mm thick flat slab specimen. Three types of truss-shaped punching shear reinforcements were prepared. All specimens were supported at the edges and subjected to gravity load tests. The results showed that the introduction of truss-shaped punching shear reinforcement increased the punching shear capacity in the range of 7.71% to 21.47%. The maximum deflection of these specimens exhibited an insignificant increase compared to the control specimen, suggesting that punching failure governed the ultimate behavior. The additional strength offered by truss-shaped punching shear reinforcement makes flat slabs as a construction material more appealing because they allow them to withstand higher design loads.
  • Publication
    Waste to concrete material: Potential Study of Chemical Characterization of Coal Fly Ash and Bottom Ash
    ( 2023-01-01)
    Nur Liza Rahim
    ;
    Syakirah Afiza Mohammed
    ;
    Roshazita Che Amat
    ;
    Norlia Mohamad Ibrahim
    ;
    Hamzah N.
    ;
    Samsudin S.
    ;
    Shamshinar Salehuddin
    ;
    Mustaqqim Abdul Rahim
    ;
    Holban E.
    This research focuses on the chemical properties of coal fly ash (CFA) and coal bottom ash (CBA) obtained from Sultan Azlan Shah Power Plant and compares them with the characteristics of ordinary Portland cement (OPC). Coal has been recognised as a significant fuel source in Malaysia, where it is extensively employed in the creation of steel, cement, and power. When coal is burned to create power, several different types of coal ash are created, including fly ash, bottom ash, boiler slag, and clinker. Fly and bottom ash, however, are the main coal ash waste products that have been created. In an effort to create sustainable concrete from waste, a number of studies have been carried out to ascertain the chemical characteristics of fly and bottom ash. These tests include Energy Disperse X-Ray (EDX), Mineralogy (XRD), and X-Ray Fluorescence (XRF). From the SEM result, fly ash has smaller particles and a spherical, uniform shape than bottom ash and cement. Fly and bottom ash from the Sultan Azlan Shah power plant contain a number of elements, including Silicon (Si), Aluminium (Al), Oxygen (O), Calcium (Ca), Titanium (Ti), Iron (Fe), Magnesium (Mg), Potassium (K), Carbon (C), and Sodium, according to Energy Dispersive X-Ray (EDX) test. The fly ash is primarily an amorphous material, with the presence of quartz crystalline phase (SiO2) at 24.3% and bottom ash at 31.1%, according to X-ray Diffraction (XRD) data. For the mullite phase (3AlO3.2SiO2), fly and bottom ash show results of 24.9% and 14.5%, respectively. According to an X-ray fluorescence (XRF) investigation, the main constituents of fly and bottom ash are silica, iron, and alumina. Fly ash is classified as Class F because it has a high concentration of SiO2, Al2O3, and Fe2O3 while OPC has a high CaO value. With the right composition and material preparation, CFA and CBA from the Sultan Azlan Shah Power Plant can be used as a cement replacement in concrete.
      1  31
  • Publication
    Assessment on the performance of flat slab under service load and ultimate load using ABAQUS
    ( 2020-06-10)
    Shamshinar Salehuddin
    ;
    Zaini S.S.
    ;
    Nik Zainab Nik Azizan
    ;
    Nur Liza Rahim
    ;
    Norlia Mohamad Ibrahim
    ;
    Mustaqqim Abdul Rahim
    ;
    Asyraf Mamat Ghani
    The research carried out to study on the performance of the flat slab under the design load. The design loads consist of service load, 14.68 kN/m2 and the ultimate load, 21.31 kN/m2. The justification on the design load was from the car park. The Three-Dimensional (3D) Finite Element Analysis (FEA) were conducted to investigate their failures modes with the appropriate modelling of element, mesh and concrete parameter. The size of flat slab was 1200 mm x 1200 mm x 175 mm while the material parameters were the Grade 25 for concrete and S275 for steel. It is found that the improvements more than 20% to the strength of model flat slab with shear reinforcement. Another outcome of the study indicated that the punching shear location using the FEA was less than 250 mm from column perimeter which is within the two times the depth (2d) from column face as proposed by the Eurocode 2: Design of Concrete Structures.
      6  4
  • Publication
    The mechanical properties of Crumb Rubber Steel Fiber Concrete (CRSFC)
    (Penerbit UTM Press, 2024)
    Mustaqqim Abdul Rahim
    ;
    Siti Nor Amanina Ramli
    ;
    Shamshinar Salehuddin
    ;
    Norlia Mohamad Ibrahim
    ;
    Afizah Ayob
    ;
    Nur Liza Rahim
    Waste materials can be used in concrete as part of replacement material. Currently, 4 billion tires are abandoned in landfills, with 1 billion generated annually and 1.2 billion dumped without treatment by 2030. The number of waste tires is continually increasing, because of the growing use of transport vehicles. Therefore, effectively reusing waste tires as crumb rubber in the mix of concrete can save energy and protect the environment, while the use of steel fiber in the concrete will help enhance its properties. The aim this research to producing the steel fiber crumb rubber concrete (CRSFC) and to balance the issues of strength loss and sustainability. Crumb rubber is used as sand replacement in the mix concrete in the following proportions: 0%, 5%, 10%, 15%, and 20%, while steel fiber is added in the following proportions: 0.5% by volume. Slump, compressive strength, dry density, water absorption, ultrasonic pulse velocity, and rebound hammer tests are performed on the concrete after curing. As the percentage of CRSFC increased, the slump value and dry density decreased while the water absorption increased. Steel fiber helps increase compressive strength by 33 % over normal concrete. The optimum percentage of crumb rubber in CRSFC as a sand replacement is approximately 5% to 10% by volume. In summary, incorporating crumb rubber and steel fibers into concrete can result in a more eco-friendly and resilient construction material.