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In-plane shear behaviour of earthen materials panels strengthened with polyester fabric strips
BAM Bundesanstalt für Materialforschung und -prüfung, Germany.
BAM Bundesanstalt für Materialforschung und -prüfung, Germany.
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.ORCID iD: 0000-0003-1904-7426
2016 (English)In: Structural Analysis of Historical Constructions: Anamnesis, diagnosis, therapy, controls - Proceedings of the 10th International Conference on Structural Analysis of Historical Constructions, SAHC 2016, CRC Press/Balkema , 2016, p. 1099-1105Conference paper, Published paper (Refereed)
Abstract [en]

An experimental investigation was carried out to study the in-plane shear behaviour of earthen material panels strengthened with polyester fabric strips. Strengthened panels were developed to exploit the strength potential of earthen materials and to solve its lack of tensile strength, significantly improving not only strength but also ductility. Three earthen materials were considered: cob, earth block masonry (EBM) and rammed earth (RE). As first approach the strengthening configuration, based on different adhesive materials, was tested only for cob panels. As part of the study the results of a big testing campaign of unstrengthened panels were considered. Seven strengthened panels were tested in diagonal compression/shear.A unique reinforcement orientation was used. The results of these tests are presented in this paper, and include the load-displacement behaviours, crack patterns, failure modes. The results showed that the reinforcement was the most effective in EBM panels, with increase in strength and ductility observed. In RE and cob panels the reinforcement did not likely contribute significantly to the shear resistance, due to a lack of embedment length of the strips. Instead, in EBM it was likely that the vertical reinforcement acted in tension to restrain shear induced dilation and to restrain sliding.

Place, publisher, year, edition, pages
CRC Press/Balkema , 2016. p. 1099-1105
Keywords [en]
Ductility, Masonry materials, Reinforcement, Tensile strength, Adhesive materials, Diagonal compressions, Experimental investigations, Load-displacement behaviours, Shear resistances, Strength and ductilities, Strength potential, Vertical reinforcement, Structural analysis
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42329Scopus ID: 2-s2.0-85002412672ISBN: 9781138029514 (print)OAI: oai:DiVA.org:ri-42329DiVA, id: diva2:1383104
Conference
10th International Conference on Structural Analysis of Historical Constructions, SAHC 2016, 13 September 2016 through 15 September 2016
Note

Funding details: Bundesanstalt für Materialforschung und -Prüfung, BAM; Funding details: European Commission, 244123; Funding text 1: The study was part of the work carried out at BAM in the framework of the project NIKER (www.niker.eu), funded by the European Commission under contract No. 244123 and dealing with improving immovable cultural heritage assets against the risk of earthquakes. The authors wish to acknowledge Mr.Andr? Gardei for his important support in the tests.

Available from: 2020-01-07 Created: 2020-01-07 Last updated: 2020-01-07Bibliographically approved

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Mueller, Urs

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