Hybrid effect of carbon nanotube and nano-clay on physico-mechanical properties of cement mortar

By M. Morsy, S. Alsayed, M. Aqel. 2011

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A review of dispersion of nanoparticles in cementitious matrices: Nanoparticle geometry perspective (2017, methodology): “In various research, NMK has been used in cementitious matrices alongside other additives including fly ash [154], natural fibre [155], and CNTs [156], each using a different approach in dispersing nanoparticles.”
Carbon nanotube (CNT) incorporated cementitious composites for functional construction materials: The state of the art (2019, methodology): “At higher dosage of CNT, this effect can reduce the bond strength by inhibiting hydration [154].”
Effect of multi-walled carbon nanotubes (MWCNTs) on the strength development of cementitious materials (2019, background): “[32] showed similar results by improving compressive strength by 11% on addition of CNT (0.”
Dispersion of multi-walled carbon nanotubes and its effects on the properties of cement composites (2016, neutral): “Many works, for instance [4,7,10,13 e 17], re-ported improvement, while other studies [8,12,18 e 21] reported a lack of improvement in the mechanical properties of CNT-containing cement composites.”
Review on concrete nanotechnology (2016, background): “Nazari and Riahi (2011e) tested different samples with different contents of nAl particles with average size of 15 nm. The w/b ratio for all mixes was set at .40 and the cement replacement was .5, 1.0, 1.5 and 2.0% by weight. The results showed that the compressive strength increased approximately 1”