Experimental investigation of the size effects of SiO2 nano-particles on the mechanical properties of binary blended concrete

By Alireza Naji Givi, S. Rashid, Farah Nora A. Aziz, M. Salleh. 2010

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Characteristics of nanoclay and calcined nanoclay-cement nanocomposites (2015, background): “This could be attributed to the relatively poor dispersion and agglomerations of the CNC in the cement matrix at higher CNC contents, which create weak zones, in the form of micro-voids which cause stress concentration [2, 40].”
Modification effects of colloidal nanoSiO2 on cement hydration and its gel property (2013, background): “The degree of acceleration in hydration of small particles can be due to the effect of nucleus size on nucleation sites [27].”
Beneficial role of nanosilica in cement based materials – A review (2013, background): “[85] concluded from their experiment on the size effect of nanosilica with mechanical properties of concrete that 15 nm silica particles enhanced the early age strength whereas 80 nm silica particles improved the strength only at later ages.”
Effects of colloidal nanosilica on rheological and mechanical properties of fly ash–cement mortar (2013, background): “It has been widely accepted that cement hydration is a type of dissolution–precipitation process and the nucleation rate is linearly proportional to the nucleating surface content [41], thus a higher CNS content results in a higher early age strength.”
Stabilization of residual soil using SiO2 nanoparticles and cement (2014, unknown): “120 rpm [32].”