Skip to main content
Log in

Tensile creep behavior of high strength concretes at early ages

  • Scientific Reports
  • Published:
Materials and Structures Aims and scope Submit manuscript

Abstract

Early age tensile creep of high strength concrete loaded during the first day after casting was studied. The effect of silica fume was evaluated, using two types of loading scheme: (i) creep which occurs in a restrained autogenous shrinkage test and (ii) creep measured in a conventional test under constant load. The two methods showed that the addition of silica fume increased the early age tensile creep of high strength concrete, when compared to concrete without silica fume but with similar water/binder ratio. This enhanced creep is of practical significance as it provides a mechanism to relieve some of the restraining stress that develops due to autogenous shrinkage.

Résumé

Dans cet article, on a étudié le fluage en traction d'un béton de haute résistance, pendant le premier jour suivant sa fabrication. On a caractérisé l'effet de la fumée de silice, à partir de deux modes de chargement: (1) fluage dans le cas d'un essai en retrait intrinsèque empêché et (2) fluage mesuré dans un essai conventionnel sous charge constante.

Les deux méthodes indiquent que l'addition de fumée de silice augmente le fluage initial d'un béton de haute résistance, par rapport à celui d'un béton de même rapport eau/liant sans fumée de silice. Cette augmentation du fluage est d'une signification pratique, en fournissant un mécanisme qui compense en partie les contraintes générées par le retrait intrinsèque.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Igarashi, S., Bentur, A. and Kovler, K., ‘Autogenous shrinkage and induced restraining stresses in high strength concretes’, submitted for publication.

  2. Igarashi, S., Bentur, A. and Kovler, K., ‘Stresses and creep relaxation induced in restrained autogenous shrinkage of high strength pastes and concretes’, submitted for publication.

  3. Bissonnette, B. and Pigeon, M., ‘Tensile creep at early ages of ordinary silica fume and fiber reinforced concretes’,Cem. Concr. Res. 25 (5) (1995) 1075–1085.

    Article  Google Scholar 

  4. Altoubat, S. A. and Lange, D. A., ‘Early age shrinkage and creep of fiber reinforced concrete for airfield pavement’, in Proc. Conf. Aircraft/Pavement Technology, F. Hermann, editor (American Society of Civil Engineers, USA 1997) 229–243.

    Google Scholar 

  5. Kovler, K., ‘Testing system for determining the mechanical behavior of early age concrete under restrained and free uniaxial shrinkage’,Mat. Struct. 27 (170) (1994) 324–330.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Editorial Note Dr. K. Kovler and Prof. A. Bentur are RILEM Senior Members. Technion is a RILEM Titular Member. Prof. Amon Bentur is a Fellow of RILEM and a member of the RILEM Coordinating Committee. He is the Chaiman of TC 159-ETC: ‘Engineering of the interfacial transition zone in cementitious composites’ (co-chaired with Prof. Alxander) and of TC EAS: ‘Early age shrinkage induced stresses and cracking in cementitious systems’. Dr. K. Kovler is a Member of the TC EAS and of TC 162-TDF: ‘Test and design methods for steel fiber reinforced concrete’.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kolver, K., Igarashi, S. & Bentur, A. Tensile creep behavior of high strength concretes at early ages. Mat. Struct. 32, 383–387 (1999). https://doi.org/10.1007/BF02479631

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02479631

Keywords

Navigation