Empirical Modelling of Lithium Mitigation for Alkali-Silica Reactivity-Reference-Cited by-同舟云学术

Empirical Modelling of Lithium Mitigation for Alkali-Silica Reactivity

Published:2022-12-01 Issue:2 Volume:67 Page:1-14
ISSN:2545-2819
Container-title:Nordic Concrete Research
language:en
Short-container-title:

Author:

Vacher Marc¹,Jacobsen Stefan²

Affiliation:

1. M. Sc., ENS Paris-Saclay, Department of Civil Engineering , 4, avenue des sciences, 91190 Gif-sur-Yvette , France

2. Ph.D., Professor, Norwegian University of Science and Technology , Department of Structural Engineering , Richard Birkelands vei 1a, 7491 Trondheim , Norway

Abstract

Abstract 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.

Publisher

Walter de Gruyter GmbH

Link

https://www.sciendo.com/pdf/10.2478/ncr-2022-0003

Reference24 articles.

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