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Mechanical behaviour of earthen materials.: A comparison between earth block masonry, rammed earth and cob
RISE, SP – Sveriges Tekniska Forskningsinstitut, CBI Betonginstitutet AB.
2014 (English)In: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 61, 327-339 p.Article in journal (Refereed)
Abstract [en]

Earth represents one of the oldest construction materials, which is still utilised both in developed and in developing countries. In this paper a comparison of the mechanical performance of structural elements built in three basic techniques, earth block (adobe) masonry, rammed earth and cob, is presented. In order to gain better knowledge on the structural behaviour under static loads an extensive compression and diagonal compression (shear) test campaign was performed. First compression results showed brittle mechanical behaviour in the case of earth block masonry and rammed earth elements, whereas cob exhibited a very different stress-strain pattern: cob can deform beyond the elastic range with a gradual drop in capacity. Despite its low compressive strength, cob thus presents a relatively good performance within the earthen material range as far as shear behaviour is concerned. The data here reported represents a base for a further investigation on the dynamic behaviour of the three materials considered. The study was carried out within the framework of the project NIKER funded by the European Commission dealing with improving immovable Cultural Heritage assets against the risk of earthquakes.

Place, publisher, year, edition, pages
2014. Vol. 61, 327-339 p.
Keyword [en]
Compression test, Diagonal compression test, Earthen materials, Initial shear strength
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:ri:diva-2692Local ID: 4697OAI: oai:DiVA.org:ri-2692DiVA: diva2:960295
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2017-11-21Bibliographically approved

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