Kamarudin Hussin, Brig. Jen. Datuk Prof. Dr.: Recent submissions
Now showing items 161-180 of 253
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Processing and characterization of calcined kaolin cement powder
(Elsevier Ltd, 2012-05)Abstract This paper aimed at investigating the possibility of calcined kaolin to produce cement powder that could be an alternative to Portland cement by applying geopolymerization process. Cement paste was firstly made ... -
Optimization of solids-to-liquid and alkali activator ratios of calcined kaolin geopolymeric powder
(Elsevier Ltd, 2012-12)This paper investigates the effect of S/L and alkali activator ratios on the synthesis of geopolymeric powder. Geopolymeric powder was synthesized by applying geopolymerization process. By adopting the concept of "just ... -
Fly ash porous material using geopolymerization process for high temperature exposure
(MDPI AG (Basel, Switzerland), 2012-04)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 ... -
Fly ash-based geopolymer lightweight concrete using foaming agent
(MDPI, Basel, Switzerland., 2012-06)In this paper, we report the results of our investigation on the possibility of producing foam concrete by using a geopolymer system. Class C fly ash was mixed with an alkaline activator solution (a mixture of sodium ... -
Mechanical properties and fracture behaviour of coconut fibre-based green composites
(Foundation for Materials Science and Engineering “Serban Solacolu”, 2012)This paper presents the influence of natural fibre content on the mechanical properties of coconut fibre based-green composites. The mixture ratio of cement:sand by weight was fixed at 1:1. Coconut fibre was used as ... -
Compressive strength and crack propagation of cement composites reinforced coconut fibre
(Medwell Journals, 2012)This study presents the compressive strength and crack propagation of cement composites reinforced coconut fibre. The development of cement composites in this research were done by substituting coconut fibre to the portion ... -
The influence of curing periods on the compressive strength of fly ash-based geopolymer at different aging times
(Trans Tech Publications, 2012)The results of the current experimental investigation indicate the significant effect of the heating periods on the compressive strength of fly ash-based geopolymers prepared at different alkaline liquid content at both ... -
Review on fly ash-based geopolymer concrete without portland cement
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)This paper summarizes the factors that affect the properties of fly ash-based geopolymer concrete. Alkaline activator is an important material that controls the properties of geopolymer concrete. The workability of fresh ... -
The tensile properties of chitosan filled polypropylene (PP) composites treated with acetic acid
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)The effect of chemical modification on tensile properties of chitosan filled polypropylene (PP) composites as a function of filler loading was investigated. The chemical modification was conducted via acetylation of chitosan ... -
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)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 ... -
Investigating the possibility of utilization of kaolin and the potential of metakaolin to produce green cement for construction purposes-A review
(INSInet Publication, 2011-09)Geopolymers are inorganic alkali aluminosilicate gels, formed from reaction of mineral clays or aluminosilicate-bearing industrial wastes, and treated with alkali silicate solution at 40-80°C. Geopolymers have been studied ... -
UniMAP lateric soil biocoagulant
(MINDS (Malaysian Invention and Design Society), 2012-05-17)Lateric Soil Biocoagulant is to replace the existing chemical coagulant used for example Aluminium Sulphate, Ferrous Sulphate and Ferric Chloride. Chemical coagu-lant will produce harmful chemical sludge which is hard to ... -
Potential application of kaolin without calcine as greener concrete: A review
(INSInet Publications, 2011-07)Kaolin is a white raw material that has an essential constituent which makes it ideal for industrial applications such as green concrete. Based on a historical review, it appears that green polymeric composites created by ... -
Optimization of alkaline activator / fly ash ratio on the compressive strength of manufacturing fly ash-based geopolymer
(Trans Tech Publications, 2012)Fly ash and a mixture of alkaline activators namely sodium silicate (Waterglass) and sodium hydroxide (NaOH) solution were used for preparing geopolymer. The aim of this research is to determine the optimum value of the ... -
Effects of dynamic vulcanization on thermal properties of calcium carbonate filled polypropylene/ethylene propylene diene terpolymer composites
(Universiti Putra Malaysia Press, 2010-07)In this study, dynamic vulcanization process was used to improve the thermal properties of calcium carbonate filled composites. The composites were prepared using a Z-blade mixer at 180°C and rotor speed 50rpm. Thermogravimetric ... -
Wettability, electrical and mechanical properties of 99.3Sn-0.7Cu/Si 3N4 novel lead-free nanocomposite solder
(Trans Tech Publications, 2011-07-04)A nanocomposite solder alloy with 99.3Sn-0.7Cu base alloy was successfully fabricated using the powder metallurgy route which consists of blending, compaction and sintering. Varying amount of nano size silicon nitride ... -
Chemical modification of chitosan-filled polypropylene (PP) composites: The effect of 3-aminopropyltriethoxysilane on mechanical and thermal properties
(Taylor & Francis Group, 2011-01)Chitosan was used as filler in polypropylene (PP) polymer. In order to improve compatibility between chitosan and PP, chitosan was chemically modified with 3-aminopropyltriethoxysilane (3-APE). The results show that the ... -
The effect of silane treatment on processing characteristic and swelling behavior of polypropylene/recycled acrylonitrile butadiene rubber/rice husk powder composites
(Trans Tech Publications, 2011-03-22)The effect of silane treatment on processing characteristic and swelling behavior of recycled acrylonitrile butadiene rubber (NBRr)/polypropylene (PP)/rice husk powder (RHP) composites has been studied. Polypropylene/recycled ... -
Electronic band structure and optical properties of titanium oxyphosphates Li0.50Co0.25TiO(PO4) single crystals: An ab-initio calculations
(Elsevier Inc., 2011-08)From the refined atomic positions obtained by Belmal et al. (2004) using X-ray diffraction for Li0.50Co0.25TiO(PO4), we have performed a structural optimization by minimizing the forces acting on the atoms keeping the ... -
Theoretical investigation for Li2CuSb as multifunctional materials: Electrode for high capacity rechargeable batteries and novel materials for second harmonic generation
(Elsevier B.V., 2011-07-28)Based on the first-principles electronic structure calculations, we predict that Li2CuSb should be good electrode materials for high capacity rechargeable batteries and novel materials for second harmonic generation. This ...