Effects of nanosilica addition on workability and compressive strength of Portland cement pastes

By M. Berra, F. Carassiti, T. Mangialardi, A. E. Paolini, M. Sebastiani. 2012

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A study of multiple effects of nano-silica and hybrid fibres on the properties of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) incorporating waste bottom ash (WBA) (2014, neutral): “Berra [52] explained that the significant water retention capacity of cement paste with nano-silica should be attributed to instantaneous interactions between nano-silica slurry and the liquid phase of cement pastes.”
Incorporation of nano-materials in cement composite and geopolymer based paste and mortar – A review (2017, background): “In contrast, a delayed addition of the superplasticizer allowed the mixture ingredients to be dispersed uniformly without significantly affecting the NS reactivity [87].”
Beneficial role of nanosilica in cement based materials – A review (2013, background): “Increased plastic viscosity and compressive strength increment was observed with nanosilica addition [64].”
Effects of colloidal nanosilica on rheological and mechanical properties of fly ash–cement mortar (2013, background): “[20] investigated the influence of mixing procedures on the rheological and mechanical properties of nanosilica-added cement-based materials and stated that the instantaneous formation of gel upon nanosilica’s meeting cement solution and superplasticizer would adversely affect its influence on the p”