Rheology of selfcompacting mortars with sustainable binders

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

Description

Title: Rheology of selfcompacting mortars with sustainable binders
Author/s:
  • Pacios Álvarez, Antonia
  • Alonso Alonso, Maria Cruz
  • Dehn, Frank
  • König, Andreas
Item Type: Presentation at Congress or Conference (Article)
Event Title: IV Congresso Ibero-americano sobre Betão Auto-compactável – BAC2015
Event Dates: 6 a 7 de julho de 2015
Event Location: Oporto
Title of Book: IV Congresso Ibero-americano sobre Betão Auto-compactável – BAC2015
Date: 2015
Subjects:
Freetext Keywords: cements, rheological characterization, temperature effect, experimental techniques
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Mecánica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainBIA2011-22760UnspecifiedUnspecifiedIMPLEMENTACION DE METODOLOGIAS DE PROTECCION FRENTE A LA CORROSION PARA EXTENDER LA VIDA UTIL DE ESTRUCTURAS DE HORMIGON

More information

Item ID: 42515
DC Identifier: http://oa.upm.es/42515/
OAI Identifier: oai:oa.upm.es:42515
Official URL: https://paginas.fe.up.pt/~bac2015/?page_id=297#
Deposited by: Memoria Investigacion
Deposited on: 25 Aug 2016 11:52
Last Modified: 23 May 2019 15:19
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