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Influence of nano-SiO2 on the Portland cement pastes
The evolution of nanotechnology provides materials with new properties and over the last years a lot of effort has been put to introduce nano-particles into cement pastes in order to improve their properties and to produce materials of better performance. In the present research work, nano-SiO2 produced by pyrolysis and with specific area of 200 m2/g has been added at different percentages (0%, 0.5%, 1%, 2% and 5%) to high-strength cement pastes. These pastes were tested for their mechanical and structural properties at different ages. Nanoparticles act as nuclei for crystallization and large, idiomorphic crystals of Ca-Si composition were formed assisting, up to a certain percentage, in producing materials with dense structure, reduced porosity and improved strength.
Influence of nano-SiO2 on the Portland cement pastes
The evolution of nanotechnology provides materials with new properties and over the last years a lot of effort has been put to introduce nano-particles into cement pastes in order to improve their properties and to produce materials of better performance. In the present research work, nano-SiO2 produced by pyrolysis and with specific area of 200 m2/g has been added at different percentages (0%, 0.5%, 1%, 2% and 5%) to high-strength cement pastes. These pastes were tested for their mechanical and structural properties at different ages. Nanoparticles act as nuclei for crystallization and large, idiomorphic crystals of Ca-Si composition were formed assisting, up to a certain percentage, in producing materials with dense structure, reduced porosity and improved strength.
Influence of nano-SiO2 on the Portland cement pastes
Stefanidou, M. (Autor:in) / Papayianni, I. (Autor:in)
Composites, Part B: Engineering ; 43 ; 2706-2710
2012
5 Seiten
Aufsatz (Zeitschrift)
Englisch
Influence of nano-SiO"2 on the Portland cement pastes
| British Library Online Contents | 2012
Nano- and Microstructural Characterization of Portland Limestone Cement Pastes
| Springer Verlag | 2015
Shrinkage of hardened portland cement pastes
| TIBKAT | 1969
Porosity of hardened Portland cement pastes
| Engineering Index Backfile | 1956