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https://hdl.handle.net/10316/105491
Title: | Characterization of Fresh and Durability Properties of Different Lime Mortars for Being Used as Masonry Coatings in the Restoration of Ancient Constructions | Authors: | Branco, Fernando G. Belgas, Maria de Lurdes Mendes, Cátia Pereira, Luís Ortega, José Marcos |
Keywords: | coatings; plasters; mortars; lime putty; aerial lime; hydraulic lime; crushed rock powder; durability;; masonry; rehabilitation | Issue Date: | 2021 | Publisher: | MDPI | Project: | UIDP/04029/2020 POCI-01-0247-FEDER-033990 (iNBRail) Conselleria de Educación, Investigación, Cultura y Deporte (at present renamed as Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital) de la Generalitat Valenciana (Spain) (grant code GV/2019/070) University of Alicante |
Serial title, monograph or event: | Sustainability (Switzerland) | Volume: | 13 | Issue: | 9 | Abstract: | Coatings and plasters are an integral part of masonry cladding, having a fundamental protective and aesthetic function. They are exposed to numerous aggressive actions, which produce their degradation over time. The utilization of lime, as a binder in masonry lining mortars, plays an important role in their durability and conservation. The objective of this work is to analyze the fresh and durability properties of lime-based mortars for their application in the restoration of old buildings. Four different kinds of mortars were studied with similar workability, using as binders lime putty, aerial lime, and hydraulic lime. The aggregates used consisted of sand and crushed rock powder. As fresh properties, the consistency (by using the flow table) and water retentivity were determined. With respect to durability-related properties, water absorption by capillarity and by immersion, drying kinetics, and carbonation depth were studied. Bulk density and porosity of the mortars were also obtained. Mortars with lime putty showed higher global porosity and water absorption by immersion, while aerial lime mortars presented lower porosity and higher water absorption by capillarity. Finally, the durability performance of all the studied lime mortars was overall adequate for being applied as masonry coatings in the restoration of old buildings. | URI: | https://hdl.handle.net/10316/105491 | ISSN: | 2071-1050 | DOI: | 10.3390/su13094909 | Rights: | openAccess |
Appears in Collections: | I&D ISISE - Artigos em Revistas Internacionais |
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