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Parameters controlling early age hydration of cement pastes containing accelerators for sprayed concrete

Author
Salvador, R.; Pialarissi Cavalaro, S.H.; Cincotto, M.; de Figueiredo, A.D.
Type of activity
Journal article
Journal
Cement and concrete research
Date of publication
2016-11
Volume
89
First page
230
Last page
248
DOI
https://doi.org/10.1016/j.cemconres.2016.09.002 Open in new window
Repository
http://hdl.handle.net/2117/90036 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0008884616305026 Open in new window
Abstract
The objective of this work is to parametrize the early age hydration behavior of accelerated cement pastes based on the chemical properties of cement and accelerators. Eight cements, three alkali-free and one alkaline accelerators were evaluated. Isothermal calorimetry, in situ XRD and SEM imaging were performed to characterize kinetics and mechanisms of hydration and the microstructure development. The reactivity of all accelerators is directly proportional to their aluminum and sulfate concent...
Citation
Salvador, R., Pialarissi Cavalaro, S.H., Cincotto, M., de Figueiredo, A.D. Parameters controlling early age hydration of cement pastes containing accelerators for sprayed concrete. "Cement and concrete research", Novembre 2016, vol. 89, p. 230-248.
Keywords
Accelerator, Cement paste, Hydration, Kinetics, Sprayed concrete
Group of research
EC - Construction Engineering

Participants

  • Salvador, Renan Pícolo  (author)
  • Pialarissi Cavalaro, Sergio Henrique  (author)
  • Cincotto, Maria Alba  (author)
  • Domingues de Figueiredo, Antonio  (author)

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