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Title: THE ASSESSMENT OF STRENGTH PROPERTIES OF HISTORICAL MORTARS FOR SUSTAINABLE RENOVATIONS
THE ASSESSMENT OF STRENGTH PROPERTIES OF HISTORICAL MORTARS FOR SUSTAINABLE RENOVATIONS

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Jaroslav Pokorny; Jan Fort; Lenka Scheinherrova; Tomas Navara; David Javorsky
10.5593/sgem2024/6.1/s26.47
10.5593/sgem2024/6.1
1314-2704
978-619-7603-74-3
English
24
6.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Green Buildings Technologies and Materials
Old buildings, in particular, those coming from the first half of 20th 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.
[1] Vejmelkova E., Keppert M., Kersner Z., Rovnanikova P., Cerny R., Mechanical, fracture-mechanical, hygric, thermal, and durability properties of lime-methakalolin plasters for renovation of historical buildings, Construction and Buildings Materials, vol. 31, pp 22-28, 2012.
[2] Almeida L., Silva A.S., Veiga R., Mirao J., 20th Century Mortars: Physical and Mechanical Properties from Awarded Buildings in Lisbon (Portugal)—Studies towards
Their Conservation and Repair, Buildings, vol. 13, 2468, 2023.
[3] Maravelaki-Kalaitzaki L., Bakolas A., Karatasios I., Kilikoglou V., Hydraulic lime mortars for the restoration of historic masonry in Crete, Cement and Concrete Research, vol. 35, 1577-1586, 2005.
[4] Jerman M., Scheinherrova L., Medved I., Krejsova J., Dolezelova M., Bezdicka P., Cerny R., Effect of cyclic wetting and drying on microstructure, composition and length changes of lime-based plasters, Cement and Concrete Composites, vol. 104, 103411, 2019.
[5] Pokorny J., Sevcik R., Sal J., Zarybnicka L., Zak J., Lightweigth concretes with improved water and water vapor transport for remediation of damp induced buildings, Materials, vol. 14, pp 1115-1126, 2007.
[6] Veiga M.R., Velosa A.L., Magalhaes A.C., Evaluation of mechanical compatibility of renders to apply on old walls based on a restrained shrinkage test, Materials and Structures, vol. 40, 5902, 2021.
[7] EN 1015-11, Methods of test for mortar for masonry – Part 11: Determination of flexural and compressive strength of hardened mortar, CEN, Brussels, 1999.
[8] EN 1015-3, Methods of test for mortar for masonry – Part 3: Determination of consistence of fresh mortar, CEN, Brussels, 2000.
[9] EN 1015-10, Methods of test for mortar for masonry - Part 10: Determination of dry bulk density of hardened mortar, CEN, Brussels, 1999.
The authors gratefully acknowledge the financial support received from the Ministry of Culture of the Czech Republic, under project DH23P03OVV012.
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https://doi.org/10.5593/sgem2024/6.1/s26.47
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
319-324
1 - 7 July, 2024
website
9813
renders, old buildings, strength properties, testing procedure, sustainable renovation

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