Mechanical behaviour of earthen materials: A comparison between earth block masonry, rammed earth and cob
- 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 theEarth 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.…
MetadatenAutor*innen: | Lorenzo Miccoli, U. Müller, Patrick Fontana |
---|
Dokumenttyp: | Zeitschriftenartikel |
---|
Veröffentlichungsform: | Verlagsliteratur |
---|
Sprache: | Englisch |
---|
Titel des übergeordneten Werkes (Englisch): | Construction and building materials |
---|
Jahr der Erstveröffentlichung: | 2014 |
---|
Verlag: | Elsevier Science |
---|
Verlagsort: | Amsterdam |
---|
Jahrgang/Band: | 61 |
---|
Erste Seite: | 327 |
---|
Letzte Seite: | 339 |
---|
Freie Schlagwörter: | Compression test; Diagonal compression test; Earthen materials; Initial shear strength |
---|
DOI: | 10.1016/j.conbuildmat.2014.03.009 |
---|
ISSN: | 0950-0618 |
---|
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
---|
Datum der Freischaltung: | 20.02.2016 |
---|
Referierte Publikation: | Ja |
---|
Datum der Eintragung als referierte Publikation: | 14.04.2014 |
---|