Memorias de investigación
Communications at congresses:
Rheology of self-compacting mortars with sustainable binders
Year:2015
Research Areas
  • Construction of engineering
Information
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.
International
Si
Congress
IV Congresso Iberoamericano Betao Auto Compactabel 2015
960
Place
Oporto
Reviewers
Si
ISBN/ISSN
9789727521791
Start Date
06/07/2015
End Date
07/07/2015
From page
409
To page
419
IV CONGRESSO IBEROAMERICANO BETAO AUTO COMPACTAVEL
Participants
  • Autor: Antonia Pacios Alvarez UPM
  • Autor: Maria Cruz Alonso IETcc-CSIC
  • Autor: Frank Dehn University of Leipzig
  • Autor: Andreas König University of Leipzig
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Proyectos y Calidad