0
  • DE
  • EN
  • FR
  • Base de données et galerie internationale d'ouvrages d'art et du génie civil

Publicité

Empirical Modelling of Lithium Mitigation for Alkali-Silica Reactivity

Auteur(s): (M. Sc., ENS Paris-Saclay, Department of Civil Engineering , 4, avenue des sciences, 91190 Gif-sur-Yvette , France)
(Ph.D., Professor, Norwegian University of Science and Technology , Department of Structural Engineering , Richard Birkelands vei 1a, 7491 Trondheim , Norway)
Médium: article de revue
Langue(s): anglais
Publié dans: Nordic Concrete Research, , n. 2, v. 67
Page(s): 1-14
DOI: 10.2478/ncr-2022-0003
Abstrait:

The Alkali-Silica Reaction (ASR) is a deleterious concrete chemical reaction that has been studied a lot since its discovery in 1940. The reaction produces a highly hygroscopic silica gel that swells into the pores of concrete, resulting in the critical decrease of the mechanical performances of the affected structures. Some methods have been investigated to limit expansion under a certain limit, among them lithium mitigation. However, the mechanisms are not really understood yet and determining the right amount of lithium is still arduous. An attempt for a method in coherence with experience is presented in this study, using the chemo-mechanical model of Larive and curve-fitting. The results provide accuracy to experimental measurements from several protocols, and call for further research.

Structurae ne peut pas vous offrir cette publication en texte intégral pour l'instant. Le texte intégral est accessible chez l'éditeur. DOI: 10.2478/ncr-2022-0003.
  • Informations
    sur cette fiche
  • Reference-ID
    10705797
  • Publié(e) le:
    19.02.2023
  • Modifié(e) le:
    19.02.2023
 
Structurae coopère avec
International Association for Bridge and Structural Engineering (IABSE)
e-mosty Magazine
e-BrIM Magazine