Synthesis and characterization of red mud and rice husk ash-based geopolymer composites
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Cites background or methods from "Synthesis and characterization of r..."
...RM consists of 30- 60% iron oxides which account for its red color (He et al., 2013; Si et al., 2013)....
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...Generally, the setting time of GeoPC can be affected by numerous factors such as chemical and physical properties of the binder itself, mix design composition, mixing process, molarity of NaOH, Na2SiO3/NaOH ratio and ecological conditions....
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...NaOH (user-hostile) + FA: FA particles entrenched in an alumino-silicate gel with Si:Al= 1 to 2, zeolitic sort (chabazite-Na and sodalite)....
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...Another research on FAbased GeoPC revealed that the increase in Na2SiO3/NaOH ratio to 2.5 contributed to a considerable decrease in mortar setting time (Ali and Zurisman, 2015)....
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...Using super-plasticizers (SPs) can also influence FA-based geopolymer pastes at varying degrees because of the instability of these commercial materials in highly basic media, such as NaOH+Na2SiO3 (Memon et al., 2012; Palacios and Puertas, 2004)....
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369 citations
Cites background or result from "Synthesis and characterization of r..."
...It is well known that conventional geopolymers required heat treatment in order to attain similar or higher compressive strength in comparison with OPC concrete [14,22,23,44,45]....
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...Geopolymerization might be hindered upon exceeding certain temperature and heat treatment period, depending on the source material, which in turns adversely affect the mechanical properties of the geopolymers [14,20,24]....
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...Several authors have come to an agreement that the variation of particle size distribution of the binder phase poses a significant effect on the compressive strength, physical properties and microstructure of the resultant geopolymer paste [14,59]....
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...The results justified that there is some distinct correlation between the mechanical, microstructure and durability properties of RHA based geopolymers [14,60,96]....
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...A proper adjustment of SiO2/Al2O3 ratio in geopolymers by hybridizing two different source of aluminosilicate source material and adjustment in hybridization ratios can improve the compressive strength of geopolymers [14,20,36]....
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336 citations
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