Experimental study of the effect of addition of nano-silica on the behaviour of cement mortars Mounir
By Ltifi, A. Guefrech, P. Mounanga, A. Khelidj. 2011
197 citations recorded by the source corpus.
Abstract The properties of cement mortars with nano-SiO2 were experimentally studied. The amorphous or glassy silica, which is the major component of a pozzolan, reacts with calcium hydroxide formed from calcium silicate hydration. The rate of the pozzolanic reaction is proportional to the amount of surface area available for reaction. Therefore, it is plausible to add nano-SiO2 particles in order to make high-performance concrete. In the aim to study the effects of the addition of nanoparticles on the behavior of pastes and cement mortars, nano-particles of silica amorphous were incorporated at a rate of 3 and 10% by weight of cement. The compressive strengths of different mortars increase with the increasing of the amount of nano-SiO2. The influence of nano-SiO2 on consistency and setting time are different. Nano-SiO2 makes cement paste thicker and accelerates the cement hydration process
Subfields: Civil and Structural Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/78d44dcecf05508da1f1591cd3083ef31926dfa8
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In Civil and Structural Engineering
In Materials Chemistry
Citations in the corpus
- Use of nano-silica in cement based materials—A review (2015, background): “Same results were observed by Ltifi et al. (2011), and 6.9–16.9% increase in compressive strength at 90 days was reported (Zapata et al., 2013).”
- Beneficial role of nanosilica in cement based materials – A review (2013, background): “The setting time of fresh cement paste and mortar were decreased by increasing the content of silica nanoparticles [47,48,51–53].”
- Stabilization of residual soil using SiO2 nanoparticles and cement (2014, background): “[27].”
- Effect of nano-silica on the hydration and microstructure development of Ultra-High Performance Concrete (UHPC) with a low binder amount (2014, result): “According to the experimental results of Ltifi [11], even a lower compressive strength of samples with 3% nano-silica can be observed, compared to the plain specimens.”