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Acceleration of Hardening Kinetics of SCC

  • François Jacquemot
  • Patrick Rougeau
  • Nicolas Flahault
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 1)

Abstract

Shortening the hardening time of SCC allows the precast concrete industry to respond to its challenge of productivity and extend the scope of application of these materials. Indeed, reducing the elapsed time between mixing fresh concrete and demoulding the concrete products represents a key factor for a faster rotation of the equipment and reduces the global cost of production. The results of the study show that it is possible to accelerate significantly the hardening kinetics of SCC. Applying an optimized thermal treatment on SCC mixture based on conventional constituents and suitable admixtures enables one to produce concrete that stays workable for 30 minutes and reaches compressive strength up to 25 MPa after 4 hours of curing and more than 80 MPa at 28 days. The influence of the thermal treatment, the use of hardening accelerator and ultrafine particles were evaluated.

Keywords

Compressive Strength Thermal Treatment Fresh Concrete Mixture Proportion Concrete Product 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© RILEM 2010

Authors and Affiliations

  • François Jacquemot
    • 1
  • Patrick Rougeau
    • 1
  • Nicolas Flahault
    • 1
  1. 1.CERIB (Centre d’Etudes et de Recherches de l’Industrie du Béton)EpernonFrance

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