Mohammad Firdaus Abu Hashim
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Preferred name
Mohammad Firdaus Abu Hashim
Official Name
Mohammad Firdaus , Abu Hashim
Alternative Name
Abu Hashim, M. F.
Hashim, M. F.A.
Firdaus Abu Hashim, Mohammad
Hashim, Mohammad Firdaus Abu
Main Affiliation
Geopolymer Research Group (CEGeoGTech)
Scopus Author ID
57210989376
Researcher ID
M-4852-2019

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  • Publication
    Comparison of hook and straight steel fibers addition on malaysian fly ash-based geopolymer concrete on the slump, density, water absorption and mechanical properties
    ( 2021)
    Meor Ahmad Faris bin Meor Ahmad Tajudin
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Ratnasamy Muniandy
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Katarzyna Błoch
    ;
    Bartłomiej Jeż
    ;
    Sebastian Garus
    ;
    Paweł Palutkiewicz
    ;
    Nurul Aida Mohd Mortar
    ;
    Mohd Fathullah Ghazli@Ghazali
    Geopolymer concrete has the potential to replace ordinary Portland cement which can reduce carbon dioxide emission to the environment. The addition of different amounts of steel fibers, as well as different types of end-shape fibers, could alter the performance of geopolymer concrete. The source of aluminosilicate (fly ash) used in the production of geopolymer concrete may lead to a different result. This study focuses on the comparison between Malaysian fly ash geopolymer concrete with the addition of hooked steel fibers and geopolymer concrete with the addition of straight-end steel fibers to the physical and mechanical properties. Malaysian fly ash was first characterized by X-ray fluorescence (XRF) to identify the chemical composition. The sample of steel fiber reinforced geopolymer concrete was produced by mixing fly ash, alkali activators, aggregates, and specific amounts of hook or straight steel fibers. The steel fibers addition for both types of fibers are 0%, 0.5%, 1.0%, 1.5%, and 2.0% by volume percentage. The samples were cured at room temperature. The physical properties (slump, density, and water absorption) of reinforced geopolymer concrete were studied. Meanwhile, a mechanical performance which is compressive, as well as the flexural strength was studied. The results show that the pattern in physical properties of geopolymer concrete for both types of fibers addition is almost similar where the slump is decreased with density and water absorption is increased with the increasing amount of fibers addition. However, the addition of hook steel fiber to the geopolymer concrete produced a lower slump than the addition of straight steel fibers. Meanwhile, the addition of hook steel fiber to the geopolymer concrete shows a higher density and water absorption compared to the sample with the addition of straight steel fibers. However, the difference is not significant. Besides, samples with the addition of hook steel fibers give better performance for compressive and flexural strength compared to the samples with the addition of straight steel fibers where the highest is at 1.0% of fibers addition.
  • Publication
    Effect of Glass Reinforced Epoxy (GRE) pipe filled with geopolymer materials for piping application: compression properties
    ( 2016)
    Mohammad Firdaus Abu Hashim
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Kamarudin Hussin
    ;
    Mohammed Binhussain
    ;
    Mohd Firdaus Omar
    The aim of this paper is to achieve the highest compressive strength of glass reinforced epoxy pipe with the geopolymer filler content of weight percentage that were used in glass reinforced epoxy pipe. The samples were prepared by using the filament winding method. The effect of weight percentage of geopolymer materials in epoxy hardener was studied under mechanical testing, which is using the compression test. A series of glass reinforced epoxy pipe and glass reinforced epoxy pipe filled with 10 – 40 weight percentage geopolymer filler which is white clay were prepared. The compression strength of the glass reinforced epoxy pipe filled geopolymer materials is determined using Instron Universal Testing under compression mode. It was found that compressive strength for samples with white clay geopolymer filler are much higher compare to glass reinforced epoxy pipe without geopolymer filler. Moreover, the compressive strength of glass reinforced epoxy pipe filled with white clay geopolymer filler was increased from 10 wt% to 30 wt% of geopolymer content. However, the compressive strength of glass reinforced epoxy pipe with white clay geopolymer filler suddenly decreased when added to 40 wt%. The results indicated that the blending of geopolymer materials in epoxy system can be obtained in this study.
      14  1
  • Publication
    Interaction of Geopolymer Filler and Alkali Molarity Concentration towards the Fire Properties of Glass-Reinforced Epoxy Composites Fabricated Using Filament Winding Technique
    ( 2022-09-01)
    Mohammad Firdaus Abu Hashim
    ;
    Meor Ahmad Faris Meor Ahmad Tajudin
    ;
    Mydin M.A.O.
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Farah Farhana Zainal
    ;
    Saloma
    ;
    Muhammad Faheem Mohd. Tahir
    ;
    Heah Cheng Yong
    ;
    Khorami M.
    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.
      1
  • 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.
      6  23
  • Publication
    Tensile Properties of Polyethylene Composites Based Kaolin Geo-Filler
    ( 2020-11-24)
    Lun Loh Zhen
    ;
    Yusrina Mat Daud
    ;
    Farah Farhana Zainal
    ;
    Farah Farhana Zainal
    ;
    Hartati
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Shern Tan Wei
    The current work studies the tensile properties of polyethylene composites-based kaolin geo-filler. Polyethylene composites was prepared based on kaolin geo-filler at different loading content varies from 0,2,4,6,8 and 10 wt%. The optimum results were compared with polyethylene composites based on raw kaolin to study the effect both filler on tensile properties. Tensile test was conducted according to ASTM D638. Based on these research studies, the use of kaolin geo-filler is effectively improved the tensile properties of polyethylene as compared to the raw kaolin filler. As the result, 8% of kaolin geo-filler content demonstrate the optimum formulation to enhance the tensile properties of polyethylene composites.
      6  37
  • Publication
    Comparison of hook and straight steel fibers addition on Malaysian fly ash-based geopolymer concrete on the slump, density, water absorption and mechanical properties
    ( 2021)
    Meor Ahmad Faris bin Meor Ahmad Tajudin
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Ratnasamy Muniandy
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Katarzyna Błoch
    ;
    Bartłomiej Jeż
    ;
    Sebastian Garus
    ;
    Paweł Palutkiewicz
    ;
    Nurul Aida Mohd Mortar
    ;
    Mohd Fathullah Ghazli@Ghazali
    Geopolymer concrete has the potential to replace ordinary Portland cement which can reduce carbon dioxide emission to the environment. The addition of different amounts of steel fibers, as well as different types of end-shape fibers, could alter the performance of geopolymer concrete. The source of aluminosilicate (fly ash) used in the production of geopolymer concrete may lead to a different result. This study focuses on the comparison between Malaysian fly ash geopolymer concrete with the addition of hooked steel fibers and geopolymer concrete with the addition of straight-end steel fibers to the physical and mechanical properties. Malaysian fly ash was first characterized by X-ray fluorescence (XRF) to identify the chemical composition. The sample of steel fiber reinforced geopolymer concrete was produced by mixing fly ash, alkali activators, aggregates, and specific amounts of hook or straight steel fibers. The steel fibers addition for both types of fibers are 0%, 0.5%, 1.0%, 1.5%, and 2.0% by volume percentage. The samples were cured at room temperature. The physical properties (slump, density, and water absorption) of reinforced geopolymer concrete were studied. Meanwhile, a mechanical performance which is compressive, as well as the flexural strength was studied. The results show that the pattern in physical properties of geopolymer concrete for both types of fibers addition is almost similar where the slump is decreased with density and water absorption is increased with the increasing amount of fibers addition. However, the addition of hook steel fiber to the geopolymer concrete produced a lower slump than the addition of straight steel fibers. Meanwhile, the addition of hook steel fiber to the geopolymer concrete shows a higher density and water absorption compared to the sample with the addition of straight steel fibers. However, the difference is not significant. Besides, samples with the addition of hook steel fibers give better performance for compressive and flexural strength compared to the samples with the addition of straight steel fibers where the highest is at 1.0% of fibers addition.
      1  19
  • Publication
    Geopolymer filled glass reinforced epoxy composite using filament winding
    ( 2018)
    Mohammad Firdaus Abu Hashim
    Glass fiber reinforced epoxy composite tubes have a great strength, lighter in weight, and low risk of bursting which make them commonly preferred in the fields of aviation, structural engineering, and in oil and gas industries. Conventional glass reinforced epoxy pipes have its own disadvantages such as low strength and low heat performance which can be replaced by the filled glass reinforced epoxy. Mechanical and physical properties of epoxy can be harshly reduced when exposed to corrosive and heavy duty environment. Conventional glass reinforced epoxy also cannot stand with high temperature and heat resistance. The piping system of existing glass reinforced epoxy is issued to high mechanical load and chemical experience, performance, and stability of glass reinforced epoxy pipes may sensitive to damage suffered by poor handling and installation. This research was conducted to produce a series of glass reinforced epoxy pipe and glass reinforced epoxy pipe filled with fly ash-based geopolymer and white clay-based geopolymer by using 10 wt% to 40 wt% geopolymer filler using filament winding process. The parameters for the geopolymer filler production includes the sodium hydroxide concentration, types of geopolymer filler used, and the percentage of geopolymer filler used in the epoxy resin. The performance of glass reinforced epoxy pipe filled with geopolymer filler were analysed in term of compressive strength, water absoption, density and hydrostatic pressure strength. From this study, the maximum compressive strength (94.64 MPa and 88.14 MPa) of glass reinforced epoxy filled with geopolymer filler pipe was achieved at 12M sodium hydroxide concentration for both fly ash-based geopolymer and white clay-based geopolymer filler. The compressive strength result of glass reinforced epoxy pipes filled with geopolymer filler for fly ash and white clay showed an increment up to 30 wt% of geopolymer filler and start to decrease at 40 wt% of geopolymer filler in both vertical and horizontal position. The maximum strength in vertical position of glass reinforced epoxy pipe without any geopolymer filler shows only 53.36 MPa in compressive strength while glass reinforced epoxy pipe filled with fly ash-based geopolymer and white clay-based geopolymer filler shows 94.64 MPa and 88.14 MPa respectively. Furthermore, the compressive strength test in horizontal position for both glass reinforced epoxy filled with geopolymer filler (fly ash and white clay) pipe samples shows the highest compressive strength which is 6.73 MPa and 5.84 MPa respectively, compared to glass reinforced epoxy pipe without any geopolymer filler material only showed 5.07 MPa. Besides that, for the hydrostatic pressure test, the samples with hoop pattern filament winding process shows better results compared to helical pattern of filament winding process. Glass reinforced epoxy pipe filled with fly ash-based geopolymer filler showed highest bursting reading which is 261 bar and glass reinforced epoxy filled with white clay-based geopolymer filler is 246 bar compared to glass reinforced epoxy pipe without geopolymer filler is only at 225 bar. Apart of making a new piping product, this is show that geopolymer can be used as a filler material in glass reinforced epoxy composite pipe.
      1  32
  • Publication
    The Effect of Sodium Hydroxide (NaOH) Solution Concentration on Properties of Geopolymer Paste
    ( 2020-11-24)
    Farah Farhana Zainal
    ;
    Sulotoha Nurqistina
    ;
    Yusrina Mat Daud
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Hasri
    ;
    Hartati
    This research analyzes the effect of sodium hydroxide (NaOH) solution concentration ranging from 8M to 12M as alkaline activator on the properties of geopolymer paste. Alkaline activator is essentially a mixture of sodium hydroxide and sodium silicate solution. In this research, the main component used was raw kaolin. In order to produce kaolin based geopolymer paste, the alkaline activator solution was prepared with 0.24:1.00 ratio of Na2SiO3/NaOH and this alkaline activator solution was prepared for 24 hours prior before used in another process. The solid-to-liquid ratio which is kaolin-to alkaline activator solution ratio was 0.80:1.00. The mixture of kaolin based geopolymer paste were placed in cube moulds with a size of 50x50x50 mm, and left for 24 hours until it hardened. Then, the samples were cured at 80? in the oven for 24 hours. The samples of kaolin based geopolymer paste were tested based on compressive strength, morphology analysis, water absorption and porosity after 28 days. In this project, 8M concentration of NaOH solution was the best concentration in order to study the synthesis of kaolin based geopolymer paste as the sample had the highest amount of compressive strength with 0.992 MPa and had the lowest water absorption and porosity with 1.246% and 24.08% respectively. Scanning Electron Microscope (SEM) was used to observe the morphological structure of the kaolin based geopolymer paste. The sample with 8M concentration of NaOH solution shows that least amount of unreacted particles. The structure of kaolin based geopolymer paste was more dense at 8M concentration as the size of pore decreases. The kaolin based geopolymer paste is suitable for use in the construction building industry as a finishing product such as coating.
      12  35
  • Publication
    EFFECT OF COMPOSITION ON MELT FLOW AND DENSITY OF POLYPROPYLENE COPOLYMER/KAOLIN GEO-FILLER COMPOSITES
    ( 2023-01-01)
    Zulkifli Z.
    ;
    Yusrina Mat Daud
    ;
    Farah Farhana Zainal
    ;
    Mohammad Firdaus Abu Hashim
    ;
    Aygörmez Y.
    This study examined the effects rheological properties of different composition kaolin and kaolin geo-filler in polypropylene composites. Polypropylene composites with varying composition of kaolin geo-filler 0 wt%, 2 wt%, 4 wt%, 6 wt%, 8 wt%, and 10 wt% was prepared and compared with polypropylene composite with raw kaolin. Kaolin is an aluminosilicate based mineral filler was used to prepare geopolymer paste by combining with alkaline activator solution. The polypropylene composite was compounded using a twin-screw extruder and the melt flow index was determined by a constant weight pressure of 2.16 kg at 230°C in 10 min. Knowing the melt flow index is necessary to predict and control the process, the study has demonstrated that the composition of kaolin filler and kaolin geo-filler affects the melt flow, melt density and surface morphology at varies composition. Composites with kaolin geo-filler have demonstrated high melt flow index process and having better distribution and flow.
      4  23
  • 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