Khairul Nizar Ismail, Associate Professor Dr.: Recent submissions
Now showing items 41-54 of 54
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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-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 ... -
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 ... -
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 ... -
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 ... -
Microstructure study between lightweight aggregates and cement matrix
(Universiti Malaysia PerlisSchool of Materials Engineering & School of Environmental Engineering, 2010-06-09)This paper presents a study of lightweight aggregates microstructure using Scanning Electron Microscope with Energy Dispersive Spectrometer (SEM-EDS). This paper examined the topography of the interfacial zone and the ... -
Properties of modified polystyrene lightweight aggregate in concrete
(Universiti Malaysia Pahang, 2009-06-20)Several experiments were conducted to characterize the properties of modified polystyrene lightweight aggregate in concrete. Microstructure of modified polystyrene lightweight aggregate in concrete can be assessed by ... -
The fabrication of artificial marble from dolomite (Batu Reput)
(The Mineral, Metals & Materials Society (TMS), 2006-01)Perlis is one of the major producers of "Batu Reput" in Malaysia and majority of the deposits contain of high-purity calcium and magnesium carbonate. The composition of Batu Reput is similar with the ordinary dolomite. ... -
Effects of calcination temperature and zinc-source concentration on chemical-solution synthesized ZnO nanorods
(Electrochemical Society, 2006)In this paper, ZnO nanoparticles, in particular nanorods, were prepared by a time-saving and a cost effective chemical-solution process. Zinc acetate dehydrates, 2-propanol and diethanolamine were used as the source to ... -
Comparative characterization of Clinker’s microstructure at different temperature zone during cement production
(Science Publications, 2007)Temperature is an important parameter for transformation of minerals in clinker during cement productions. It influences the formation of alite from belite during calcinations and clinkering processes. The result of ... -
Comparative Characterization of Clinker’s Microstructure at Different Temperature Zone during Cement Production
(Science Publications, 2007)Temperature is an important parameter for transformation of minerals in clinker during cement productions. It influences the formation of alite from belite during calcinations and clinkering processes. The result of ... -
Comparative Study of Clinker’s Transformation at Different Temperature Zone During Cement Production
(Science Publications, 2007)Chemical composition analysis using x-ray fluorescence is one of the important quality analysis for examining of cement and widely used in cement industries for a long time as a tool to estimate phase composition. X-ray ... -
Physical & Chemical properties of Pulverised Fuel Ash
(Universiti Malaysia Perlis (UniMAP), 2007-06-09)Pulverised fuel ash is the finely divided mineral residue resulting from the combustion of coal in electric generating plants. Pulverised fuel ash consists of inorganic, incombustible matter present in the coal that has ...