Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Pumpability of Sustainable SCC Mixtures
Año:2016
Áreas de investigación
  • Materiales de construccion,
  • Hormigon,
  • Ingeniería de construcción
Datos
Descripción
Self-Compacting Concretes (SCC) are sustainable materials because they replace large amounts of cement by the use of low embodied energy and CO2 mineral additions. The addition of such fine materials not only enhances the workability of the mix, but also enlarges the durability due to the reduction of intrinsic permeability. However, the addition of fine materials may alter the behaviour of the mix during pumping, making it shear-thickening and requiring unexpectedly high pumping pressures in some cases. These effects make necessary the development of some kind of quality control methodology for assessing the performance of these mixes during pumping. This paper presents preliminary results obtained in an ongoing experimental program on the behaviour of SCC mixes during pumping and early ages (EA); with the overall goal of identifying a set of parameters useable for quality control while pumping those mixes. Results obtained so far, suggest that the function linking pressure gradient with discharge rate is not linear for some SCC mixes, making not directly applicable QC methods based on the assumption of a linear behaviour. Results also show that the selected EA indicators allow a proper assessment of the changes which affect later SCC hardened performance.
Internacional
Si
Nombre congreso
II International Conference on Concrete Sustainability (ICCS16)
Tipo de participación
960
Lugar del congreso
Madrid, España
Revisores
Si
ISBN o ISSN
978-84-945077-7-9
DOI
Fecha inicio congreso
13/06/2016
Fecha fin congreso
15/06/2016
Desde la página
797
Hasta la página
808
Título de las actas
ICCS16 Concrete Sustainability. Proceedings of the Second International Conference on Concrete Sustainability, held in Madrid, Spain on 13 - 15 June 2016
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Ángel Rodríguez
  • Autor: Gonzalo Barluenga Badiola (UPM)
  • Autor: Olga Río Suárez (UPM)
  • Autor: Irene Palomar
  • Autor: Khanh Nguyen
  • Autor: Alberto Sepulcre Aguilar (UPM)
  • Autor: Mercedes Giménez
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Nuevas Técnicas Arquitectura Ciudad
  • Departamento: Construcciones Arquitectónicas y su Control
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