Lime-metakaolin mortars applied on the Soledade palace, Recife, Brazil T.M.A. Bonilla, A.F. Ferreira, A.F. Nóbrega, E.C.R. Silva, M.L. Souza, A.M.P.

Abstract eng:
The purpose of this work was to evaluate lime mortars with pozzolanic additions of metakaolin applied as plasters on the original masonry of Soledade Palace, Recife, Brazil. The study involved the following variables: 1. Application over internal/external substrates; 2. Substrates with/without a lime-sand coat to increase the brick-mortar bond; 3. Three proportions of mortars; 4. Use of dry slaked lime or matured lime putty. The mortars were evaluated in regards to their mechanical strength and brick-mortar bond. Results indicated that these mortars are appropriate to be used in building restoration work, since they were prepared observing standards and good practices of execution and were applied in accordance with adequate techniques of restoration. Thus, these mortars will be able to assure the integrity and durability of ancient masonry.

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