Browsing by Advisor
Now showing items 1-10 of 10
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Admixtures for use in geopolymers
(2012-11-10)This study examined two novel approaches for the geopolymerisation of fly ash produced at thermoelectric power stations by combustion of coal. The first approach involved the use of cullet, a post-consumer glass waste, to ... -
Characterization and utilization of fly ash derived from the co-combustion of biomass and coal as a mineral admixture for ordinary Portland cement
(2009)Co-firing coal with renewable/waste biomass for power generation can mitigate the atmospheric discharge of pollutants (e.g., SO2) and green-house gases. Wide-spread application of this technology is impeded, however, by ... -
Comparison of methods to determine the carbonation depth in fly ash blended cement mortars
(2014-01-22)Carbonation negatively affects the durability of steel-reinforced concrete structures by causing a decrease in pore solution pH, thus facilitating corrosion which eventually leads to cracking and spalling. Different ... -
Effect of carbonation on leachability and compressive strength of cement-solidified and geopolymer-solidified synthetic metal wastes
(2012-11-10)Stabilization/solidification (s/s) is a well-established technique for treating a variety of metal-containing hazardous waste streams prior to land disposal. Solidification refers to the improvement of the physical ... -
Effects of sucrose and sorbitol on cement hydration applications to cement stabilization of metal waste
(2007)Cement-based stabilization/solidification (S/S) is a widely used technique to treat industrial wastes containing toxic metal ions before land disposal. To prevent the fast setting of the treated waste during its transportation ... -
Hydrolysis of silicone polymers in aqueous systems
(2001)Silicon-29 and 'H NMR spectroscopy were used to investigate the hydrolysis of methyl silicones in a variety of aqueous environments. Dilute acid, dilute base and one or more of the dissolved constituents of blood plasma ... -
An investigation of saccharide complexation by aqueous oxoacids. Can oxoacids mediate A1-2 quorum sensing in bacteria?
(2013-02-12)The goal of this investigation was to determine whether it is plausible for bacterial AI-2 quorum sensing to be selectively regulated by environmentally available oxoacids. In particular, we investigated the ability of ... -
Investigation of the molecular basis for silicon biofunctionality
(2004)Despite advances in our understanding of the beneficial role of silicon in the biosphere, surprisingly little is known of the molecular mechanism by which silicon is absorbed, transported, accumulated and deposited by ... -
NMR study of aqueous tetraalkylammonium silicates
(1994)Silicon-29 nuclear magnetic resonance (NMR) spectroscopy has been used to investigate the equilibrium distribution and kinetics of silicate oligomers in aqueous tetraalkylammonium silicate solutions. Certain tetraalkyl ... -
Speciation of aqueous hypercoordinated organosilicate complexes / by Jiali Wen.
(2007, c 20)Aqueous silicon chemistry plays a major and as yet unappreciated role in many fields of science. Emerging technologies such as the fabrication of biomimetic ceramics require a thorough understanding of all factors affecting ...
