Reología, comportamiento físico-mecánicos y de durabilidad de hormigones con nanosílice
Abstract
Nanosilice based in nanometric amorphous silica is one of the aplications of nanotechnology in the building industry, that has the same use than microsilica, but with the advantage that it does not produce environmental pollution or respiratory complains due to inhalation. We give the results of the physical characterization of two commercial nanosilice compounds by the admixtures characterization methods and electronic microscopy analysis to determine the fundamental compound, its pozzolanic activity in mortars, as well as its capillary absorption, ultrasonic pulse speed, volumetric mass, water penetration resistance coefficient, water absorption coefficient and effective porosity in concrete with nanosilice and in ordinary
concrete with natural pozzolans and superplasticizer admixtures like comparative patterns. Results show a better behavior of durability in concretes with nanosilice.
Keywords: nanotechnology; nanosilica; microsilica; chemical admixtures; additions.
Downloads
References
Ficha Técnica Gaia Nanosílice (2009), Edición No.2, Identificación No. 1002 Versión 02. 7 p
Gann, D. (2002), A review of nanotechnology and its potencial applications for construction, SPRU, University of Sussex, Brighton, Reino Unido.
Industrias Ulmen Europa, S.L. Construcción – hormigones 2p. (2009), Ficha Técnica Gaia Ns Compact, Edición No.2 Mayo 2009. Identificación No. 1001 Versión 01 4 p
Instrucción del Hormigón Estructural (EHE-08) (2008), (R.D. 1247/2008 - BOE de 18 de julio 2008, núm. 203, pp. 35176- en 35178), entrada vigor el 01 de diciembre de 2008 Instrucción del Hormigón Estructural (EHE-08) (R.D. 1247/2008 - BOE de 18 de julio 2008, núm. 203, pp. 35176- en 35178), entrada vigor el 01 de diciembre de 2008
JIS 1404:1997 (1997), Método de ensayo para adiciones impermeables del cemento en hormigones y morteros.
NC 231: 2002 (2002), Determinación, interpretación y aplicación de la velocidad del pulso ultrasónico en el hormigón.
NC 345:2011 (2011), Hormigón endurecido. Determinación de la absorción de agua por capilaridad que utiliza el método propuesto por Goran Fagerlund
Payá J., Borrachero M. V., Monzó J., Soriano L., Martínez- Velandia D., Bueno A. (2008), Estudios sobre cemento Pórland adicionado con nanosílice. X Congreso Nacional de Materiales (Donostia San Sebastián 18-20 Junio 2008. 6p.
Roco M. C., Williams R. S., Alivisatos P. (1999), Nanotechnology Research Directions: IWGN Research Report. Committee on Technology, Interagency Working Group on Nanoscience, Engineering and Technology (IWGN), National Science and Technology Council
Sobolev K., Ferrada Gutiérrez M. (2005b), How nanotechnology can change the concrete world: Part 2, American Ceramic Society Bulletin, 11, pp. 16-19.
Sobolev K., Ferrada-Gutiérrez M. (2005a), How nanotechnology can change the concrete world: Part 1, American Ceramic Society Bulletin, 10, pp. 14-17.
Talero R., Delgado A. (2009), Los cementos, sus adiciones y la durabilidad del hormigón, en Geomateriales, Materiales de construcción y desarrollo sostenible, Edita Sanfeliú, T, Jordán, M.M. y Excmo. Ayuntamiento de Castellón de La Plana, pp. 295-348, Castellón de La Plana, España.
_______________________________
License in effect from September 2020
You are free to:
- Share — copy and redistribute the material in any medium or format for any purpose, even commercially.
- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Notices:
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation .
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.