Browsing Khairul Nizar Ismail, Associate Professor Dr. by Title
Now showing items 18-37 of 54
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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. ... -
Feasibility of producing wood fibre-reinforced geopolymer composites (WFRGC)
(Trans Tech Publications, 2013)Wood fibres have long been known as a fibre reinforcement for concrete. Due to its availability and low production cost, this natural fibre has been used in less developed country where conventional construction materials ... -
Fire resistance evaluation of lightweight geopolymer concrete system exposed to elevated temperatures of 100-800 °C
(Trans Tech Publications, 2014)This paper reports the fire resistance property of a lightweight aggregate geopolymer concrete (LWAGC) material synthesized by the alkali-activation of locally source fly ash (FA) after exposed to elevated temperatures ... -
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 ... -
General properties of kaolin geopolymers
(American Scientific Publishers, 2013-01)This paper reported the properties of kaolin geopolymers in term of the bulk density, compressive strength, qualitative observation and SEM analysis of the kaolin geopolymers. Kaolin geopolymers were synthesized through ... -
Influence of activator composition on the properties of calcined kaolin geopolymeric powder
(Universiti Malaysia Perlis (UniMAP), 2012-06-18)This paper studied the influence of activator composition on the properties of calcined kaolin geopolymeric powder. The alkaline activation of calcined kaolin was performed in mixture of waterglass liquid and NaOH solution ... -
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 ... -
Influence of dolomite on the mechanical properties of boiler ash geopolymer paste
(Trans Tech Publications, 2014)The waste material from palm oil industry has been increasing since Malaysia was the world largest exported of palm oil mill. The waste such as palm fibers, nut shells, palm kernel and empty fruit bunches are the solid ... -
Influence of solidification process on calcined kaolin geopolymeric powder
(Trans Tech Publications, 2012-02)This paper aims at investigating the influence of solidification condition on the processing of calcined kaolin geopolymeric powder. This is a new process developed using the geopolymerization process. Geopolymer slurry ... -
Influence of solids-to-liquid and activator ratios on calcined kaolin cement powder
(Elsevier BV, 2011)This paper summarizes the effect of activator ratio on the processing of cement powder. Geopolymer slurry was produced via alkaline activation of calcined kaolin. Once the geopolymer slurry solidified, it was crushed and ... -
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 ... -
Lightweight fly ash-based geopolymer concrete
(Trans Tech Publications, 2013)The experiments of this study were preformed to study the synthesis process for lightweight aggregate geopolymer concrete (LWAGC) using normal sand as a fine aggregate and expanded clay as lightweight aggregate. The LWAGC ... -
Mechanical performances of fly ash geopolymer bricks
(American Scientific Publishers, 2013-01)Geopolymer is a new class of three-dimensionally networked amorphous to semi-crystalline alumino-silicate materials, and first developed by Professor Davidovits in 1978. Geopolymers can be synthesized by mixing alumino-silicate ... -
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 ... -
Microstructure study on optimization of high strength fly ash based geopolymer
(Trans Tech Publications, 2012)The compressive strength and microstructural characteristics of fly ash based geopolymer with alkaline activator solution were investigated. The sodium hydroxide and sodium silicate were mixed together to form an alkaline ... -
Microstructure study on volcano ash geopolymer aggregate at different sintering temperature
(Trans Tech Publications, 2014)Recent research shows that the by-product materials such as fly ash can be used as raw material in producing aggregates and lightweight aggregates. The usage of this material can improve the quality of the aggregates ... -
Optimization of NaOH Molarity, LUSI Mud/Alkaline Activator, and Na2SiO3/NaOH Ratio to Produce Lightweight Aggregate-Based Geopolymer
(MDPI AG, 2015-05-21)This paper presents the mechanical function and characterization of an artificial lightweight geopolymer aggregate (ALGA) using LUSI (Sidoarjo mud) and alkaline activator as source materials. LUSI stands for LU-Lumpur and ... -
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 ... -
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 ... -
Physicochemical properties of pyrolitic carbon black from waste tyres
(Trans Tech Publications, 2014)Waste tyres which are mainly generated from automotive industries have become a major environmental problem to the local authorities, the tyre industries and tyre dealer. When tyres are no longer usable due to worn-out, ...