THE ASSESSMENT OF STRENGTH PROPERTIES OF HISTORICAL MORTARS FOR SUSTAINABLE RENOVATIONS

Old buildings, in particular, those coming from the first half of 20" century often suffer With increased dampness in masonry coming from different sources. Some of them, however, have aesthetically rendered valued facades which are worth saving. For the design of new alternative mortars for re...

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Published inInternational Multidisciplinary Scientific GeoConference SGEM Vol. 2024; no. 6.1; pp. 319 - 324
Main Authors Pokorny, Jaroslav, t, Jan, Scheinherrová, Lenka, Navara, Tomás, Javorsky, David
Format Conference Proceeding
LanguageEnglish
Published Sofia Surveying Geology & Mining Ecology Management (SGEM) 01.01.2024
Subjects
Compressive strength
Cultural heritage
Design standards
Flexural strength
Historic buildings & sites
Historical buildings
Historical structures
Laboratories
Masonry
Mechanical properties
Moisture content
Mortars (material)
Renovation
Strength testing
Sustainability
Test procedures
Testing procedures
Italy
Czech Republic
Online AccessGet full text
ISSN1314-2704
DOI10.5593/sgem2024/6.1/s26.47

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Summary:Old buildings, in particular, those coming from the first half of 20" century often suffer With increased dampness in masonry coming from different sources. Some of them, however, have aesthetically rendered valued facades which are worth saving. For the design of new alternative mortars for renovation interventions, it is essential to obtain properties of original renders. Mechanical properties of mortars are in general assessed on standardized test samples; however, this approach cannot be always well applicable for in situ taken mortars or rendering materials. This paper is devoted to the specification of complex experimental procedure allowing to effectively obtain strength parameters of in situ collected renders which will be comparable with laboratory produced alternative mortars. Throughout this paper the detailed description of in situ collected renders sampling procedure is provided. Further, the adjusted approach of flexural strength testing in three-point arrangement and compressive strength tests for both cut renders samples and laboratory prepared alternative mortars is outlined. The suitable set up of testing procedures of materials coming from old or historical buildings introduces a key area for obtaining experimental relevant data being the bases for their sustainable renovations.
Bibliography:ObjectType-Conference Proceeding-1
SourceType-Conference Papers & Proceedings-1
content type line 21
ISSN:1314-2704
DOI:10.5593/sgem2024/6.1/s26.47