Properties of high-volume fly ash concrete incorporating nano-SiO2

By Gengying Li. 2004

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Engineering of SiO 2 Nanoparticles for Optimal Performance in Nano Cement-Based Materials (2009, background): “The mechanical properties of cement mortars with nano-Fe2O3 and nano-SiO2 were studied [15, 22].”
Microstructure, hydration and nanomechanical properties of concrete containing metakaolin (2015, result): “Similar results have been reported by other researchers [35–37].”
Effects of colloidal nanosilica on rheological and mechanical properties of fly ash–cement mortar (2013, background): “Li’s results [16] showed that nanosilica improved the compressive strength of 50% fly ash replacement concrete by 7% after 2 years hydration.”
Use of nano-silica in cement based materials—A review (2015, background): “Pore size distribution in concrete was refined and Page 8 of 11 porosity lowered even at short time, curing on addition of 4% nano-silica (Li, 2004; Zhang & Li, 2011).”
Effects of colloidal nanoSiO2 on fly ash hydration (2012, background): “By measuring the weight of fly ash blends in saturated lime solution, Li [15] observed a higher weight increment rate/degree of nanoSiO2-added blends and attributed it to the higher pozzolanic reaction of fly ash due to the hydration seeding sites provided by nanoSiO2.”