Che Mohd Ruzaidi Ghazali
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Che Mohd Ruzaidi Ghazali
Official Name
Che Mohd Ruzaidi, Ghazali
Alternative Name
Ruzaidi, C. M.
Ruzaidi, Ghazali Che Mohd
Mohd Ruzaidi, Che
Ruzaidi, Ghazali
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Scopus Author ID
15760587000

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  • Publication
    Fly ash porous material using geopolymerization process for high temperature exposure
    ( 2012)
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Liyana Jamaludin
    ;
    Kamarudin Hussin
    ;
    Mohamed Bnhussain
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Mohd Izzat Ahmad
    This paper presents the results of a study on the effect of temperature on geopolymers manufactured using pozzolanic materials (fly ash). In this paper, we report on our investigation of the performance of porous geopolymers made with fly ash after exposure to temperatures from 600 °C up to 1000 °C. The research methodology consisted of pozzolanic materials (fly ash) synthesized with a mixture of sodium hydroxide and sodium silicate solution as an alkaline activator. Foaming agent solution was added to geopolymer paste. The geopolymer paste samples were cured at 60 °C for one day and the geopolymers samples were sintered from 600 °C to 1000 °C to evaluate strength loss due to thermal damage. We also studied their phase formation and microstructure. The heated geopolymers samples were tested by compressive strength after three days. The results showed that the porous geopolymers exhibited strength increases after temperature exposure.
  • Publication
    Crumb rubber geopolymer mortar at elevated temperature exposure
    ( 2022-01-01)
    Ahmad Azrem Azmi
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Ahmad R.
    ;
    Jaya R.P.
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Almadani M.A.
    ;
    Wysłocki J.J.
    ;
    Åšliwa A.
    ;
    Sandu A.V.
    Low calcium fly ash is used as the main material in the mixture and the crumb rubber was used in replacing fine aggregates in geopolymer mortar. Sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) which were high alkaline solution were incorporated as the alkaline solution. The fly ash reacted with the alkaline solution forming alumino-silicate gel that binds the aggregate to produce a geopolymer mortar. The loading of crumb rubber in the fly ash based geopolymer mortar was set at 0% (CRGM-0), 5% (CRGM-5), 10% (CRGM-10), 15% (CRGM-15), and 20% (CRGM-20), respectively. NaOH solution (12M) and Na2SiO3 solution ratio is set constant at 2.5 for all geopolymer mixture and the fly ash to alkali activator ratio was kept at 2.0. The CRGM at 28 days of curing time was exposed to elevated temperature at 200â—¦C, 400â—¦C, 600â—¦C and 800â—¦C. The weight loss of the CRGM increases with increasing temperature at all elevated temperatures. However, the density and compressive strength of CRGM decrease with an increase of crumb rubber loading for all elevated temperature exposure. The compressive strength of CRGM reduced due to the fact that rubber decomposes between 200â—¦C and 600â—¦C thereby creating voids. CRGM-15 and CRGM-20 showed cracks developed with rough surface at 800â—¦C. Image obtained from scanning electron microscope (SEM) showed that, the CRGM changed significantly due to the decomposition of crumb rubber and evaporation of the free water at 400â—¦C, 600â—¦C and 800â—¦C.
      2
  • Publication
    Interaction of geopolymer filler and alkali molarity concentration towards the fire properties of glass-reinforced epoxy composites fabricated using filament winding technique
    ( 2022)
    Mohammad Firdaus Abu Hashim
    ;
    Meor Ahmad Faris bin Meor Ahmad Tajudin
    ;
    Md Azree Othuman Mydin
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Farah Farhana Zainal
    ;
    Muhammad Faheem Saloma
    ;
    Heah Cheng Mohd Tahir
    ;
    Morteza Yong
    This paper aims to find out the effect of different weight percentages of geopolymer filler in glass-reinforced epoxy pipe, and which can achieve the best mechanical properties and adhesion between high calcium pozzolanic-based geopolymer matrices. Different weight percentages and molarities of epoxy hardener resin and high calcium pozzolanic-based geopolymer were injected into the glass fiber. By manually winding filaments, composite samples were produced, and they were then allowed to cure at room temperature. To determine how well the geopolymer matrices adhere to the fiber reinforcement, the microstructure of the composites’ surfaces and perpendicular sections were examined. Maximum values of compressive strength and compressive modulus were 94.64 MPa and 2373.58 MPa, respectively, for the sample with a weight percentage of filler loading of 30 wt% for an alkali concentration of 12 M. This is a relatively wide range of geopolymer weight percentage of filler loading from 10 wt% to 40 wt%, at which we can obtain high compressive properties. By referring to microstructural analysis, adhesion, and interaction of the geopolymer matrix to glass fiber, it shows that the filler is well-dispersed and embedded at the fiber glass, and it was difficult to determine the differences within the range of optimal geopolymer filler content. By determining the optimum weight percent of 30 wt% of geopolymer filler and microstructural analysis, the maximum parameter has been achieved via analysis of high calcium pozzolanic-based geopolymer filler. Fire or elevated temperature represents one of the extreme ambient conditions that any structure may be exposed to during its service life. The heat resistance or thermal analysis between glass-reinforced epoxy (GRE) pipe and glass-reinforced epoxy pipe filled with high calcium pozzolanic-based geopolymer filler was studied by investigating burning tests on the samples, which shows that the addition of high calcium pozzolanic-based geopolymer filler results in a significant reduction of the melted epoxy.
      3  13
  • Publication
    Asas Polimer
    (Penerbit Universiti Malaysia Perlis, 2010)
    Che Mohd Ruzaidi Ghazali
    ;
    Sinar Arzuria Adnan
    ;
    Yusrina Mat Daud
    ;
    Luqman Musa
    ;
    Mohd. Mustafa Al Bakri Abdullah
    Buku asas polimer merupakan sebuah buku yang membincangkan beberapa perkara asas yang utama dalam bidang polimer. Kebanyakan kita mengetahui tentang polimer tetapi tidak pada asas dan sifat semulajadi bahan polimer tersebut. Polimer kini lebih bernilai dan diperlukan dalam bidang binaan, angkasa lepas, komunikasi, pembuatan, pengangkutan, perubatan dan lain-lain keperluan harian. Polimer yang wujud secara semulajadi termasuklah bahan yang kita guna sebagai tar, syelek, getah pokok dan lain-lain menuntut kepada kita untuk memahami dengan lebih jelas ciri-ciri dan sifat bahan polimer. Buku ini dapat memenuhi keperluan dan minat terutamanya pelajar-pelajar untuk memahami dengan lebih mendalam lagi mengenai asas-asas dan sifat-sifat bahan polimer. Tajuk-tajuk yang dibincangkan di dalam buku ini disusun dan dioleh degan cara yang mudah untuk pengajaran dan pembelajaran tentang asas-asas polimer. Buku ini sesuai dijadikan sebagai bahan rujukan asas pelajar-pelajar kejuruteraan bahan, kejuruteraan polimer, teknologi polimer dan sains. Ia juga merangkumi beberapa subjek asas yang penting dalam bidang polimer termasuk kimia polimer, struktur fizikal polimer, reologi polimer, aplikasi, sifat dan pengujian polimer.
      1  14
  • Publication
    Low temperature synthetic graphite from oil palm trunk waste via pyrolisis process
    ( 2020)
    Norizah Abd Karim
    ;
    Muhammad Mahyiddin Ramli
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    C A I Nadia
    ;
    G Denesh
    Synthetic graphite was produced from oil palm trunk chip in lower heating temperature via pyrolysis process. The heating rate (10 °/min and 20 °/min) were varied whilst the heating temperature at 500 °C was fixed. All of the samples produced after heat treatment process were characterized by X-Ray Diffraction (XRD) and the diffraction pattern obtained analyzed using X’Pert Highscore Plus software to affirm the phase analysis. To ensure the graphitic nature of synthetic graphite produced, RAMAN analysis was conducted. Morphological study of the synthetic graphite produced involved scanning electron microscope (SEM) analysis. From the investigation, the results show, confirmation that synthetic graphite was successfully synthesized at the heat treatment of 500 °C (20 °/min heating rate) with fixed soaking hours. Synthetic graphite produced matched with XRD reference code of 00-041-1487. Analysis of RAMAN confirm the formation of D, G and 2D peaks at the respective wavenumber of 1250 cm-1, 1625 cm-1 and 2700cm-1.
      5  27
  • Publication
    Mechanical Effect on Different Geopolymer Filler in Glass Reinforced Epoxy Composite
    ( 2024-04-19)
    Mohammad Firdaus Abu Hashim
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Meor Ahmad Faris Meor Ahmad Tajudin
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Farah Farhana Zainal
    ;
    Saloma
    ;
    Sulaiman I.S.
    Glass reinforced epoxy are widely known in oil and gas industry as glass reinforced epoxy pipe. However, glass reinforced epoxy has limitation such as demanding careful handling due fabrication, installation and transportation because of brittle nature itself and low compressive strength. The aim of this research is to characterize and study the effect of different geopolymer filler in the glass reinforced epoxy pipe composites. Filament winding method will be used in producing glass reinforced epoxy composite. Samples will be prepared with different weight percentage of geopolymer filler loading and different types of geopolymer filler which is fly ash-based geopolymer and kaolin-based geopolymer with 10wt% - 40wt% of geopolymer filler loading. Microstructure was obtained by using Scanning Electron Microscopy showed spherical shaped of fly ash raw material and plate-like structure for kaolin raw material. After undergoes the mechanical testing involved compressive test, pipe sample of glass reinforced epoxy filled with 20 wt% of fly ash-based geopolymer filler showed the best performances above them all. The compressive strength value was 43.05 MPa. Glass reinforced epoxy composite pipe filled with different geopolymer are not widely used in this research area. Therefore, by using geopolymer as a filler can improve the properties of glass reinforced epoxy composite pipe. Hence, a waste material like geopolymer can reduce the cost of material and improve the environment.
      1
  • Publication
    Diverse material based geopolymer towards heavy metals removal: a review
    ( 2023)
    Pilomeena Arokiasamy
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Monower Sadique
    ;
    Liew Yun Ming
    ;
    Mohd Arif Anuar Mohd Salleh
    ;
    Mohd Remy Rozainy Mohd Arif Zainol
    ;
    Che Mohd Ruzaidi Ghazali
    Metakaolin is a commonly used aluminosilicate material for the synthesis of geopolymer based adsorbent. However, it presents characteristics that restrict its uses such as weak rheological properties brought on by the plate-like structure, processing challenges, high water demand and quick hydration reaction. Industrial waste, on the other hand, contains a variety of components and is a potential source of aluminosilicate material. Geopolymer adsorbent synthesized by utilizing industrial waste contains a wide range of elements that offer better ion-exchangeability and increase active sites on the surface of geopolymer. However, limited studies focused on the synthesized of geopolymer based adsorbent by utilizing industrial waste for heavy metal adsorption in wastewater treatment. Therefore, this paper reviews on the raw materials used in the synthesis of geopolymer for wastewater treatment. This would help in the development of low cost geopolymer based adsorbent that has a great potential for heavy metal adsorption, which could deliver double benefit in both waste management and wastewater treatment.
      12  2
  • Publication
    Pengenalan Bahan Komposit
    (Penerbit Universiti Malaysia Perlis, 2011)
    Khairel Rafezi Ahmad
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Shamsul Baharin Jamaluddin
    ;
    Mohamed Faisol Mohamed Nor
    ;
    Alida Abdullah
    Bahan komposit ialah satu bahan kejuruteraan yang juga dikenali sebagai ‘Bahan Termaju’ dan penggunaannya semakin meluas pada masa kini. Perkara-perkara asas seperti jenis, sifat, kaedah penghasilan dan contoh aplikasi bagi bahan komposit dibincangkan di dalam buku ini. Buku ini juga menerangkan secara terperinci tentang bahan komposit seperti komposit matriks polimer, komposit matriks logam, komposit matriks seramik dan komposit matriks simen. Dengan terhasilnya penerbitan buku ini, diharapkan dapat membantu dan menarik minat pembaca yang ingin mengetahui lebih lanjut tentang bahan komposit dalam meningkatkan pemahaman terhadap asas-asas komposit atau bahan termaju dalam kejuruteran bahan.
      8  2
  • Publication
    Effects of Different Fiber Sizes in PLA/Carbon Fiber Composites on Mechanical Properties
    ( 2024-01-01)
    Mohammad Firdaus Abu Hashim
    ;
    Yusrina Mat Daud
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Meor Ahmad Faris Meor Ahmad Tajudin
    ;
    Rasidi M.S.M.
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Farah Farhana Zainal
    ;
    Hasyim S.
    ;
    Nazri N.N.M.
    ;
    Garus S.
    This study assessed the morphology and chemical composition of coir coconut husk carbon fiber, as well as the impact of fiber diameters on the physical and mechanical properties of polylactic acid composites. Researchers are studying polylactide acid, a biodegradable material. This eco-friendly material’s excellent features, generated from sustainable and renewable sources, have drawn many people. Malaysia’s high coconut fiber output made coir husk a popular commodity. Coconut fibers are lignin, cellulose, and hemicellulose. Alkaline treatment eliminates hemicellulose, oil, wax, and other contaminants from coir fibers and removes lignin. Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy were used to examine the treated coconut fibers’ chemical modification analysis and morphology. Coconut coir husk was carbonized to produce carbon fiber using a furnace operated at 300°C for 2 hours. Fiber and polylactic acid were mixed in different fiber sizes (0, 53 µm, 75 µm, and 212 µm) via extrusion and injection processing techniques. The results showed that the alkali treatment reduced the hydroxyl (-OH) group and separated the area from the carbonyl (C=O) group of coconut coir husk, which changed the filler’s hydrophilicity. The fiber size of 212 µm was discovered to have the highest tensile and flexural strength values. According to testing, the modified material structure had a better surface fill-matrix bond. Thus, generalized fiber sizing and characterization methods were developed. Regardless of the matrix, this method can characterize natural fiber strength and interfacial shear strength of varied diameters and solid contents.
      1
  • Publication
    Optimization of soaking time for graphitization of oil palm trunk waste
    (AIP Publishing, 2023)
    Norizah Abd Karim
    ;
    Muhammad Mahyiddin Ramli
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    H. S. S. A. Syed
    ;
    R. M. S. Syah
    Synthetic graphite was synthesized from oil palm trunk chip in controlled heating condition or pyrolysis process. The soaking time was varied in the range of 2.5 hours, 3 hours, and 3.5 hours. While the heating rate and heating temperature was constant at 20 °/min and 500°C accordingly. After heat treatment process, the samples were characterized by X-Ray Diffraction (XRD) and analyzed using X'Pert Highscore Plus software. Synthetic graphite phase was analyzed by XRD and it was further supported by Fourier Transform Infrared (FTIR) Spectroscopy analysis to verify existence of functional group. The morphological study was carried out by using Scanning Electron Microscope (SEM). Based on the analysis, it was confirmed that synthetic graphite was successfully synthesized at 3hours soaking time with 500 °C and 20 °/min heating rate. Synthetic graphite was observed in the form of amorphous carbon based on the XRD diffraction pattern that match with the reference code of 00-041-1487.
      7  1