Kamarudin Hussin
Thumbnail Image
Preferred name
Kamarudin Hussin
Official Name
Hussin, Kamarudin
Alternative Name
Hussin, K.
Hussin, Kamarudin
Kamarudin, Hussin
Kamaruddin, Hussin
Kamaruddin, H.
Husin, Kamarudin
Main Affiliation
Scopus Author ID
16642513600
Researcher ID
FZF-9851-2022

Research Output

Filters

81
Reset filters

Settings
Now showing 1 - 10 of 81
  • Publication
    Fly Ash porous material using geopolymerization process for high temperature exposure
    ( 2012-04-10)
    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
    Thermal insulation properties of insulated concrete
    ( 2019-01-01)
    Shahedan N.F.
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Norsuria Mahmed
    ;
    Kusbiantoro A.
    ;
    Kamarudin Hussin
    ;
    Sandu A.V.
    ;
    Naveed A.
    In building development, concrete is world most reliable, durable and versatile in construction materials. However, the heating and cooling system of the building is influenced by outside temperature due to extreme weather or areas condition leads to the consumption of a lot of electrical power. Thermally insulated concretes represent alternative construction materials to improve the thermal efficiency in building development. Various construction materials have different thermal insulation properties and thus, their suitability for various conditions vary. Thermal insulation properties are generally identified through specific heat, thermal conductivity, thermal diffusivity, thermal expansion, and mass loss. This paper present review the thermal insulation properties of variations insulated concrete are presently in growing demand of researchers to comfort and resolve prescribed issues related to insulated concrete in enhancing thermal insulation properties as a passive energy saving building.
  • Publication
    Effect of NaOH molar concentration on microstructure and compressive strength of Dolomite/Fly Ash-Based geopolymers
    ( 2021)
    Emy Aizat Azimi
    ;
    M.A.A. Mohd Salleh
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Ikmal Hakem A. Aziz
    ;
    Kamarudin Hussin
    ;
    Jitrin Chaiprapa
    ;
    Petrica Vizureanu
    ;
    Sorachon Yoriya
    ;
    Marcin Nabiałek
    ;
    Jerzy J. Wyslocki
    Dolomite can be used as a source of aluminosilicate to produce geopolymers; however, this approach is limited by its low reactivity. This study analyzes the viability of producing geopolymers using dolomite/fly-ash with sodium silicate and NaOH solutions (at multiple concentrations) by determining the resultant geopolymers’ compressive strengths. The dolomite/fly-ash-based geopolymers at a NaOH concentration of ~22 M resulted in an optimum compressive strength of 46.38 MPa after being cured for 28 days, and the SEM and FTIR analyses confirmed the denser surface of the geopolymer matrix. The synchrotron micro-XRF analyses confirmed that the Ca concentration exceeded that of Si and Mg, leading to the formation of calcium silicate hydrate, which strengthens the resulting geopolymers.
  • Publication
    Isu pemansuhan peperiksaan Ujian Penilaian Sekolah Rendah (UPSR) dan Penilaian Menengah Rendah (PMR): satu analisis persepsi staf UniMAP
    (Universiti Malaysia Perlis (UniMAP), 2012-03-29)
    Hirwan Jasbir Jaafar
    ;
    Raja Shah Erman Raja Ariffin
    ;
    Kamarudin Hussin
    ;
    Mohd Hizazy Yusof
    ;
    Mohd Jabar Tariq Alizul Pakar
    ;
    Dzairi Asrul Dzainol
    Isu Pemansuhan peperiksaan Ujian Penilaian Sekolah Rendah(UPSR) dan Penilaian Menengah Rendah(PMR) hangat rnenghiasi dada akhbar dan blog-blog dalam Internet. Isu tersebut mengundang pelbagai reaksi positif dan negatif dari pelbagai pihak yang tampil menyatakan pendirian. Namun belum ada kajian yang dibentangkan berkenaan pandangan masyarakat yang sepatutnya diberikan hak untuk mengutarakan pandangan. Atas dasar itu kajian ini dilakukan bagi rnelihat persepsi dan reaksi kakitangan Universiti Malaysia Perlis yang berjumlah 1,608 orang terhadap isu pemansuhan kedua-dua peperiksaan tersebut. Kajian ini akan menggunakan satu set soal selidik dan pemilihan kakitangan adalah dari semua peringkat perjawatan yang berkhidmat di UniMAP. Pemilihan responden dilakukan seeara rawak bebas dan dari 500 set borang soal selidik yang diedarkan, hanya sebanyak 279 set borang sahaja yang dikembalikan. Hasil analisis yang dilakukan didapati majoriti kakitangan UniMAP menolak hasrat kementerian untuk memansuhkan UPSR Dan PMR dan mereka turut tidak bersetuju dengan alasan kementerian bahawa peperiksaan ini perlu dimansuhkan kerana ia tidak membantu perkembangan pelajar sejajar dengan falsafah pendidikan negara. Diharap dengan hasil kajian ini, ia dapat dijadikan panduan dan rujukan kepada pihak-pihak yang berminat dengan isu ini.
  • Publication
    Investigate the liberation of copper from waste Printed Circuit Boards (PCBs)
    (Universiti Malaysia Perlis (UniMAP), 2010-06-09)
    Mohd Zaheruddin Kasmuin
    ;
    Aimi Noorliyana Hashim
    ;
    M. Fazlul Bari
    ;
    Sri Asliza M.
    ;
    Faizul Che Pa
    ;
    Kamarudin Hussin
    Nowadays the waste PCBs increasing sharply proportionally the number of personal computers which is 5.7 million in 2005 and the predict amounts, it will be increase to 11.5 Million in 2010 (Unit Perancangan Ekonomi, 2006). From that figure it shows that, computer or Printed Circuit Board (PCB) which is one of the electric and electronic components may cause environmental problems during the waste management phase if it is not properly pre treated. Considering of the environmental problem, recycling of waste PCBs is an important subject not only from the treatment for waste but also from the recovery of valuable materials. The studies are focused on liberation size of copper in waste Printed Circuit Boards (PCBs). Waste PCBs sample were cut, dry crushed and ground down to assemble the criteria of liberation particle size of samples and sieved with the chosen size fraction. Samples were dissolved into aqua regia solution and analyzed with Atomic Absorption Spectroscopy (AAS) to determine the presence of valuable metals in solution that consists in samples. As well, light microscope was used to determine the degree of liberation of copper from PCBs particles. As the result it shows that Cu element (9.97%) is the highest metal composition in PCBs and it is very worth to recycle. At particles size 300 μm, it been seen from microscope that Cu particles start to fully liberated with metal and non-metal element.
  • Publication
    Performance of Sintered Pozzolanic Artificial Aggregates as Coarse Aggregate Replacement in Concrete
    ( 2021-01-01)
    Rafiza Abd Razak
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Kamarudin Hussin
    ;
    Subaer
    ;
    Zarina Yahya
    ;
    Mohamed R.
    ;
    Alida Abdullah
    The abundant increase in waste quantities year by year and the depletion of natural resources worldwide are the major concerns among researchers. Recycling and reusing various types of natural or by-product material waste from industry become highlighted in the recent study. The growing demand for concrete and the production of artificial aggregate become crucial in the construction industry. Artificial aggregate can be produced either by sintering, auto-clave or cold bonding method. Although auto-clave and cold bonding methods can minimize energy consumption, the selection of the sintering method always leads to high quality and better properties of artificial aggregates produced. The use of sintering methods to produce artificial aggregate made from pozzolanic material focuses on the use of volcanic ash as raw material activated by geopolymerization process to produce artificial lightweight aggregate-based geopolymer will be summarized in this chapter. This chapter discusses the result of the physical and mechanical properties of artificial lightweight aggregate or known as sintered geopolymer volcanic ash artificial lightweight aggregate (SGVA). The interfacial transition zone (ITZ) of sintered geopolymer volcanic ash artificial lightweight aggregate (SGVA) is presented. The performance of sintered geopolymer volcanic ash artificial lightweight aggregate (SGVA) in concrete is also discussed.
      1
  • Publication
    Chemically chitosan modified with methyl methacrylate and its effect on mechanical and thermal properties of polypropylene composites
    ( 2013)
    Faisal Amri Tanjung
    ;
    Salmah Husseinsyah
    ;
    Kamarudin Hussin
    ;
    Iqmal Tahir
    Effects of methyl methacrylate on the properties of chitosan-filled polypropylene (PP) composites has been investigated. Mechanical and thermal properties of the composites were analyzed according to ASTM D 638-91, thermogravimetry analysis (TGA) and differential scanning calorimetry (DSC). The results showed that tensile strength of PP composites decreased upon the addition of chitosan, while Young's modulus improved. At a similar filler loading, the treated PP/chitosan composites were found to have higher tensile strength and Young's modulus as compared with the untreated composites. Thermal analysis results showed that thermal stability and crystallinity of the treated composites were higher than the untreated ones. Scanning electron microscopy (SEM) and Fourier transforms infrared (FTIR) studies revealed less detached filler from matrix on tensile surface of the treated composites as an evidence of enhanced filler-matrix interfacial adhesion due to formation of ester-bridge between the chitosan and the methyl methacrylate.
      18  1
  • Publication
    Effect of sodium hydroxide molarity on physical, mechanical and thermal conductivity of metakaolin geopolymers
    ( 2018)
    Nur Ain Jaya
    ;
    Liew Yun Ming
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Heah Cheng Yong
    ;
    Kamarudin Hussin
    In the present work, the effect of different sodium hydroxide (NaOH) molarity (6M, 8M, 10M, 12M and 14M) on the physical, mechanical and thermal conductivity of metakaolin geopolymers (MkGPs) was investigated. Geopolymers were prepared by activating the metakaolin with a mixture of NaOH with sodium silicate (Na2SiO3). The products obtained were characterized after 28 days of curing. The density, porosity, compressive strength and thermal conductivity (TC) were determined. In general, the NaOH molarity has a significant effect on the compressive strength of the MkGPs. The highest compressive strength was 14.6 MPa achieved with 10M of NaOH solution. The thermal conductivity of MkGPs measured in this work was low in the range between 0.71-0.97 W/mK. NaOH molarity had a significant effect on compressive strength but a marginal effect on thermal conductivity of MkGPs. The thermal conductivity was mainly affected by the bulk density and thus the total porosity. The results showed that the geopolymer can be considered to be used as the thermal insulating material.
      5  39
  • Publication
    Asas Geopolimer Teori & Amali
    (Penerbit UniMAP, 2013)
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Rafiza Abd Razak
    ;
    Zarina Yahya
    ;
    Kamarudin Hussin
    ;
    Liew Yun Ming
    ;
    Heah Cheng Yong
    ;
    Mohd Izzat, Ahmad
    Buku Asas Geopolimer: Teori dan Amali ialah sebuah buku yang membincangkan beberapa perkara asas yang penting mengenai geopolimer. Ia meliputi aspek-aspek seperti; Sejarah geopolimer Pengenalan kepada geopolimer Perbandingan konkrit geopolimer dengan konkrit biasa Bahan mentah dalam geopolimer Tindak balas kimia Kaedah pemprosesan Kualiti konkrit geopolimer Penyelidikan geopolimer masa kini Penulisan buku ini menumpukan kepada teori asas, proses dan pencirian geopolimer yang memberi pengetahuan kepada pembaca mengenai teori dan praktikal berasaskan hasil penyelidikan yang dibuat penyelidik. Tiga perkara utama yang dibincangkan di dalam buku ini ialah bahan mentah (larutan pengaktif alkali), tindak balas kimia yang memainkan peranan dalam proses pengeopolimeran dan pemprosesan geopolimer. Buku Asas Geopolimer: Teori dan Amali ini juga adalah buku pertama yang dihasilkan dalam Bahasa Melayu.
      1  16
  • Publication
    Mechanical and microstructural evaluations of lightweight aggregate geopolymer concrete before and after exposed to elevated temperatures
    ( 2013)
    Omar Abdulkareem
    ;
    Mohd Abdullah
    ;
    Kamarudin Hussin
    ;
    Khairul Ismail
    ;
    Mohammed Binhussain
    This paper presents the mechanical and microstructural characteristics of a lightweight aggregate geopolymer concrete (LWAGC) synthesized by the alkali-activation of a fly ash source (FA) before and after being exposed to elevated temperatures, ranging from 100 to 800 °C. The results show that the LWAGC unexposed to the elevated temperatures possesses a good strength-to-weight ratio compared with other LWAGCs available in the published literature. The unexposed LWAGC also shows an excellent strength development versus aging times, up to 365 days. For the exposed LWAGC to the elevated temperatures of 100 to 800 °C, the results illustrate that the concretes gain compressive strength after being exposed to elevated temperatures of 100, 200 and 300 °C. Afterward, the strength of the LWAGC started to deteriorate and decrease after being exposed to elevated temperatures of 400 °C, and up to 800 °C. Based on the mechanical strength results of the exposed LWAGCs to elevated temperatures of 100 °C to 800 °C, the relationship between the exposure temperature and the obtained residual compressive strength is statistically analyzed and achieved. In addition, the microstructure investigation of the unexposed LWAGC shows a good bonding between aggregate and mortar at the interface transition zone (ITZ). However, this bonding is subjected to deterioration as the LWAGC is exposed to elevated temperatures of 400, 600 and 800 °C by increasing the microcrack content and swelling of the unreacted silicates.
      4  13