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Study of a self-compacting fiber-reinforced concrete to be applied in the precast industry

  • Paulo A. L. Fernandes
  • João Veludo
  • Nuno Almeida
  • João Baptista
  • Hugo RodriguesEmail author
Technical Paper
  • 364 Downloads

Abstract

This paper describes an experimental program designed to obtain a self-compacting fiber-reinforced concrete formulation based on the Faury’s reference curve, suitable to develop new solutions of non-structural slender precast elements in buildings. In the present work, it was possible to delimit the main parameters that allow to obtain a self-compacting concrete with high early age strength, allowing its application in the precast industry increasing the production cycles. The program has shown also the importance of the compatibility between the cement and the superplasticizer to prevent the undesirable effects of the high dosages of admixture in the fresh concrete performance, such as segregation and air content. The experimental campaign consisted in five self-compacting concrete mixes and another five self-compacting fiber-reinforced concrete. The first ones aimed to optimize parameters such as water/cement ratio, superplasticizer, and binder dosages in a plain SCC. Afterwards, these parameters were re-evaluated in another five mixes due to the impact of the fibers in the concrete’s fresh performance. The slump flow and the compressive strength at different ages (1, 7, and 28 days) were evaluated for all mixes.

Keywords

Self-compacting concrete Fiber-reinforced concrete Precast 

Notes

Acknowledgements

This work is supported by Lena, Engenharia e Construções, S.A. through the Portuguese R&D Program associated with the major public contracts—Contract No. 10/2269/CA/C—under the project “HIPERFORMWALLS—New solutions of non-structural precast walls by use of fiber-reinforced concrete”. The authors also would like to thank Vigobloco S.A., SECIL S.A., BASF Portugal, and Sika Portugal, for their support throughout this work.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.CERIS, Department of Civil EngineeringPolytechnic Institute of LeiriaLeiriaPortugal
  2. 2.Department of Civil EngineeringPolytechnic Institute of LeiriaLeiriaPortugal
  3. 3.RISCO, Department of Civil EngineeringPolytechnic Institute of LeiriaLeiriaPortugal

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