Browsing School of Environmental Engineering (Articles) by Title
Now showing items 45-64 of 129
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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 ... -
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 ... -
Effects of elevated temperatures on the thermal behavior and mechanical performance of fly ash geopolymer paste, mortar and lightweight concrete
(Elsevier, 2014-01)This paper reports a comparative study of the influence of elevated temperature on geopolymer paste, mortars and lightweight aggregate geopolymer concrete (LWAGC) systems made by using fly ash (FA) as only source material. ... -
The effects of fly ash and polystyrene bead additions on compressive strength of foamed cement composites
(Trans Tech Publications, 2013)The effects of both additions of fly ash and polystyrene (PS) beads were studied on compressive strength of foamed cement composites. The increasing amount of fly ash addition up to 6 wt. % has been found to increase the ... -
Enhanced photocatalytic activity of fish scale loaded TiO 2 composites under solar light irradiation
(Elsevier B.V., 2012-06)Fish scale (FS) loaded TiO2 composites were investigated as photocatalysts in degradation of Methyl Orange under solar light irradiation. Composites were prepared through sol-gel method by varying mass ratio of TiO2/FS at ... -
Estimation of missing values for air pollution data using Interpolation technique
(Universiti Malaysia Perlis, 2006)Air pollution data such as PM10, sulphur dioxide, ozone and carbon monoxide are usually obtained using automated machines located at different sites. These are usually due to mechanical failure, routine maintenance, changes ... -
Estimation of missing values in air pollution data using single imputation techniques
(Science Society of Thailand, 2008)Air pollution data obtained using automated machines often contain missing values which can cause bias due to systematic differences between observed and unobserved data. We used interpolation and mean imputation techniques ... -
Evaluation of integrated anaerobic-aerobic biofilm reactor for degradation of azo dye methyl orange
(Elsevier Ltd., 2013-09)This study was to investigate the mineralization of wastewater containing methyl orange (MO) in integrated anaerobic-aerobic biofilm reactor with coconut fiber as bio-material. Different aeration periods (3. h in phase 1 ... -
An evaluation of overstrength factor of seismic designed low rise RC buildings
(Elsevier, 2013)This study investigates the overstrength factor of reinforced concrete frame designed according to EC2 and EC8. There are two families of building considered in this study, i.e: regular and irregular in elevation with ... -
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 ... -
Filling missing data using interpolation methods: Study on the effect of fitting distribution
(Trans Tech Publications, 2014)The presence of missing values in statistical survey data is an important issue to deal with. These data usually contained missing values due to many factors such as machine failures, changes in the siting monitors, routine ... -
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 ... -
Fire resistance of biomass ash panels used for internal partitions in buildings
(Elsevier B.V., 2013)This study was to develop fire-resistant panels with a high biomass ash ratio from the combustion of EFB at an industrial scale to be used in different fire-resistant internal partitions in buildings and industrial ... -
Flexibility of supply chain in Industrialised Building System (IBS)
(EDP Sciences, 2014)It is irrefutable that the construction industry is in need of a highly technological construction method or system for the simple aim of giving it a push it deserves. In Malaysia this technologically enhanced method is ... -
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 ... -
Granular activated carbon-biofilm configured sequencing batch reactor treatment of C.I. Acid Orange 7
(Elsevier Ltd, 2008)The aim of this study is to investigate the mineralization of C.I. Acid Orange 7 (AO7) by biological process in oxygen limited condition under GAC-biofilm configured sequencing batch reactor (SBCR) operation. The granular ... -
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 oxide molar ratios on kaolin geopolymers
(American Scientific Publishers, 2013-12)Oxide molar ratios are the main key parameter determining the performance of a kaolin geopolymers. The kaolin composition and various mixture proportions will lead to different oxide molar ratios in geopolymer system. In ... -
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 ...