Influencia de la fracción muy fina de áridos reciclados mixtos en las propiedades mecánicas y durabilidad de morteros y hormigones

Autores/as

  • Taimí Castaño-Cardoza Universidad de Oriente
  • Stefan Linsel University of Applied Sciences
  • Adrián Alujas-Diaz Universidad Central “Marta Abreu” de las Villas
  • Rubén Orozco-Morales Universidad Central “Marta Abreu” de las Villas https://orcid.org/0000-0002-6240-1569
  • José Fernando Martirena-Hernández Universidad Central “Marta Abreu” de las Villas

DOI:

https://doi.org/10.17533/udea.redin.n81a08

Palabras clave:

escombros, reciclado, áridos, expansión, álcali, estructura de poros, reología

Resumen

La  producción  de  áridos  de  residuos  mixtos  reciclados  genera  un  elevado  contenido de partículas por debajo de 63 μm. Este material puede ocasionar un incremento de la demanda de agua, sin embargo, pueden contribuir a rellenar espacios entre los granos de cemento. El presente trabajo evalúa la influencia del material por debajo 63 μm de áridos reciclados  mixtos  en  las  propiedades  de  hormigones  y  morteros.  La  actividad  puzolánica  medida  por  calorimetría  isotérmica  fue  muy  baja.  El  uso  del  6%  del  material  en  morteros  incrementa la demanda de agua, ocasiona una reducción de la resistencia, pero disminuye la porosidad efectiva de la matriz e incrementa la densidad de la ITZ. Los ensayos de expansión por  álcalis  en  morteros  mostraron  una  reducción  de  la  porosidad  conectada  de  la  matriz.  La  misma  tendencia  fue  observada  en  el  hormigón.  La  contribución  beneficiosa  de  dicha  fracción puede compensar los problemas en la reología y en las propiedades mecánicas.

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Biografía del autor/a

Taimí Castaño-Cardoza, Universidad de Oriente

Profesor, Facultad de Construcciones.

Stefan Linsel, University of Applied Sciences

Doctor en Ciencias, Facultad de Arquitectura e Ingeniería Civil.

Adrián Alujas-Diaz, Universidad Central “Marta Abreu” de las Villas

Profesor, Facultad de Construcciones.

Rubén Orozco-Morales, Universidad Central “Marta Abreu” de las Villas

Profesor, Facultad de Construcciones.

José Fernando Martirena-Hernández, Universidad Central “Marta Abreu” de las Villas

Profesor, Facultad de Construcciones.

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Publicado

2016-12-02

Cómo citar

Castaño-Cardoza, T. ., Linsel, S., Alujas-Diaz, A., Orozco-Morales, R., & Martirena-Hernández, J. F. (2016). Influencia de la fracción muy fina de áridos reciclados mixtos en las propiedades mecánicas y durabilidad de morteros y hormigones. Revista Facultad De Ingeniería Universidad De Antioquia, (81), 81–92. https://doi.org/10.17533/udea.redin.n81a08

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