Observatorio de I+D+i UPM

Descripción
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.
Internacional	Si
Nombre congreso	IV Congresso Iberoamericano Betao Auto Compactabel 2015
Tipo de participación	960
Lugar del congreso	Oporto
Revisores	Si
ISBN o ISSN	9789727521791
DOI
Fecha inicio congreso	06/07/2015
Fecha fin congreso	07/07/2015
Desde la página	409
Hasta la página	419
Título de las actas	IV CONGRESSO IBEROAMERICANO BETAO AUTO COMPACTAVEL

Esta actividad pertenece a memorias de investigación

• Autor: Antonia Pacios Alvarez (UPM)
• Autor: Maria Cruz Alonso (IETcc-CSIC)
• Autor: Frank Dehn (University of Leipzig)
• Autor: Andreas König (University of Leipzig)

• Creador: Grupo de Investigación: Proyectos y Calidad