RT Journal Article
T1 Rheological and hydration characterization of calcium sulfoaluminate cement pastes
A1 García-Maté, Marta
A1 Santacruz-Cruz, María Isabel
A1 Gómez-de-la-Torre, María de los  Ángeles
A1 León-Reina, Laura
A1 García-Aranda, Miguel Ángel
K1 Reología
K1 Cemento
AB Calcium sulfoaluminate (CSA) cements are currently receiving a lot of attention because their manufacture produces less CO2 than ordinary Portland cement (OPC). However, it is essential tounderstand all parameters which may affect the hydration processes. This work deals with the study of the effect of several parameters, such as superplasticizer (SP), gypsum contents (10, 20 and 30 wt%) and w/c ratio (0.4 and 0.5), on the properties of CSA pastes during early hydration. This characterization has been performed through rheological studies, Rietveld quantitative phaseanalysis of measured x-ray diffraction patterns, thermal analysis and mercury porosimetry forpastes, and by compressive strength measurements for mortars. The effect of the used SP on therheological properties has been established. Its addition makes little difference to the amount ofettringite formed but strongly decreases the large pore fraction in the pastes. Furthermore, the SP role on compressive strength is variable, as it increases the values for mortars containing 30 wt% gypsum but decreases the strengths for mortars containing 10 wt% gypsum.
SN 0958-9465
YR 2015
FD 2015-05-14
LK http://hdl.handle.net/10630/9771
UL http://hdl.handle.net/10630/9771
LA eng
NO This work has been supported by Spanish Ministry of Science and Innovation through MAT2010-16213 research grant, which is co-funded by FEDER, and Ramón y Cajal Fellowship (RYC-2008-03523).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 24 ene 2026