2020
DOI: 10.1002/best.202000033
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Verformungsverhalten von Betonen mit ausgeprägtem plastischen Stauchvermögen

Abstract: Für besondere Anwendungsfälle, wie beispielsweise Stauchschichten im Tunnelbau, liegen bereits erste Ansätze für Mörtel und Betone vor, die durch ein ausgeprägtes plastisches Stauchvermögen charakterisiert sind. Der vorliegende Beitrag beschreibt Versuche zum Stauchverhalten unter Querdehnungsbehinderung von stark porosierten Betonen mit geringer Druckfestigkeit (< 5 N/mm2). In die Versuche wurden Betone mit verschiedenen kompressiblen Additiven (Blähglas/EPS) und unterschiedlichen Wasserzementwerten einbezoge… Show more

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Cited by 6 publications
(12 citation statements)
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“…To further characterize the CMs and to capture real conditions in tunnels, axial compression tests on cylinders (150/300 mm) were performed with full lateral confinement (Figure 7), as detailed in Reference 10. At the beginning of the plastic deformation range, the stress is close to f cm,cube .…”
Section: Methodsmentioning
confidence: 99%
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“…To further characterize the CMs and to capture real conditions in tunnels, axial compression tests on cylinders (150/300 mm) were performed with full lateral confinement (Figure 7), as detailed in Reference 10. At the beginning of the plastic deformation range, the stress is close to f cm,cube .…”
Section: Methodsmentioning
confidence: 99%
“…The compressible layer is made from cementitious materials characterized by a highly plastic compression capacity for constrained transverse strains. 10 They have highly air entraining admixture (foaming agent) and expanded polystyrene beads (EPS). Figure 3 (left) qualitatively shows the characteristic stress-strain behavior in axial compression, which can be divided into three characteristic domains (I: elastic, II: plastic, and III: densification).…”
Section: Optimization Of Segmentsmentioning
confidence: 99%
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