Effect of nano-CaCO3 on hydration of cement containing supplementary cementitious materials

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Review on concrete nanotechnology (2016, background): “Sato and Beaudoin (2010) tested the influence of NCa on the acceleration of hydration of OPC, delayed by the presence of high volumes of supplementary cementitious materials, particularly high volumes of ground granulated blast furnace slag.”
Dispersion of CaCO3 nanoparticles by sonication and surfactant treatment for application in fly ash–cement systems (2014, background): “NanoCaCO3 has not been as widely investigated but studies have shown the potential of the material in offsetting the negative effects of fly ash on the early-age properties, even at high replacement rates [5, 8, 20, 36, 47, 48].”
Mechanical and durability properties of high volume fly ash (HVFA) concrete containing calcium carbonate (CaCO3) nanoparticles (2014, background): “Sato and Beaudoin [17] studied the incorporation of micro- and nano-CaCO3 in high volume of supplementary cementitious materials.”
Fine limestone additions to regulate setting in high volume fly ash mixtures (2012, methodology): “As has been observed previously [6], the ability of nano-limestone to accelerate the reactions at early ages is clearly indicated in the isothermal calorimetry curves in Fig.”