Publicomos

Notice (permalien)

Réf.

43288

Type

article

Titre

RILEM TC 277-LHS report : a review on the mechanisms of setting and hardening of lime-based binding systems

Langues

English

Auteurs

Álvarez, J. I. / Martínez-Ramírez, S. / Secco, M. / Maravelaki, P. N. / Ramesh, M. / Papayianni, I. / Válek, J. / Faria, Paulina / Veiga, Maria do Rosário

Maison d'édition

RILEM

Date

2021

Pages

30 p.

Titre de la revue

Materials and Structures

Vol. & n°

v. 54 n. 2

ISSN

1359-5997

Mots-clés

lime / air lime / hydraulic lime / hydrated air lime / pozzolan / carbonation / drying out / chemical properties / hydration / building materials / analysis of materials

Résumé en anglais

The main objective of RILEM TC LHS-277 ‘‘Specifications for testing and evaluation of lime-based repair materials for historic Structures’’ is the revision, adaption and, when necessary proposal, of the test methods to accurately study lime-based binding systems and mixtures, such as mortars and grouts. The empiric use of the lime-based compositesand the predominant employ of cement in the field of Civil Engineering have led to the widespread application of test methods developed for cement-based composites to test the former. However, the clear differences in composition and performance betweenmodern cement binders and lime-based materials would advise to explore specific test methods for thelatter. To undertake this task the previous knowledge on the mechanisms of setting and hardening of thesebinders must be revised, arranged and synthesized. Processes such as drying, carbonation, hydration andpozzolanic reaction may occur during the setting and hardening of lime-based mortars and competition between them cannot be underestimated. With the aim of underpinning the revision and proposal of testmethods for lime-based systems, this review paper reports a comprehensive study of the mechanisms of setting and hardening of these binders, considering the variability of the composition, which includes pure air lime as well as lime with hydraulic properties, lime cement and lime-pozzolan systems.

Ressource intégrale

DOI

https://doi.org/10.1617/s11527-021-01648-3