Rheology of selfcompacting mortars with sustainable binders

Pacios Alvarez, Antonia; Alonso Alonso, Maria Cruz; Dehn, Frank y König, Andreas (2015). Rheology of selfcompacting mortars with sustainable binders. En: "IV Congresso Ibero-americano sobre Betão Auto-compactável – BAC2015", 6 a 7 de julho de 2015, Oporto. pp. 1-10.

Descripción

Título: Rheology of selfcompacting mortars with sustainable binders
Autor/es:
  • Pacios Alvarez, Antonia
  • Alonso Alonso, Maria Cruz
  • Dehn, Frank
  • König, Andreas
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: IV Congresso Ibero-americano sobre Betão Auto-compactável – BAC2015
Fechas del Evento: 6 a 7 de julho de 2015
Lugar del Evento: Oporto
Título del Libro: IV Congresso Ibero-americano sobre Betão Auto-compactável – BAC2015
Fecha: 2015
Materias:
Palabras Clave Informales: cements, rheological characterization, temperature effect, experimental techniques
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Mecánica
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

According to the data related to cement consumption in Europe during the period 2000-2013, the construction sector is demanding more and more the cement with additions, and currently the norm for the composition of cement is under revision to incorporate new cement types. The use of ternary cements, cement with large volume of two supplementary materials, as for example blast-furnace slag and fly ash, is one of the strategies investigated to improve sustainability in the construction. In this line, previous work focused on the study of the physico-mechanical properties from the very first age for reference mortar (R1) and mortar with blended cement (SF2) containing a 26% of slag and 10% of fly ash. Additions have an effect in the hydration rate of ternary cements; curing temperature has proved to be a key aspect in the accuracy of the measurement of early ages properties as rheological evolution and shrinkage, since directly influences the hydration process. Conclusions from the previous work showed that there is very high instability during the five initial hours, when a transformation from a viscous suspension into a porous rigid solid is happening; this period has a high influence on the interpretation of the experimental results. In this line, a better understanding in how the binder-admixture affects rheology of mortars when there is a difference in temperature is needed.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaBIA2011-22760Sin especificarSin especificarIMPLEMENTACION DE METODOLOGIAS DE PROTECCION FRENTE A LA CORROSION PARA EXTENDER LA VIDA UTIL DE ESTRUCTURAS DE HORMIGON

Más información

ID de Registro: 42515
Identificador DC: http://oa.upm.es/42515/
Identificador OAI: oai:oa.upm.es:42515
URL Oficial: https://paginas.fe.up.pt/~bac2015/?page_id=297#
Depositado por: Memoria Investigacion
Depositado el: 25 Ago 2016 11:52
Ultima Modificación: 25 Ago 2016 11:52
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