Show simple item record

Potential of Fe-Mn-Al-Ni Shape Memory Alloys for Internal Prestressing of Ultra-High Performance Concrete

dc.date.accessioned2023-05-25T11:22:40Z
dc.date.available2023-05-25T11:22:40Z
dc.date.issued2023-05-18
dc.identifierdoi:10.17170/kobra-202305198058
dc.identifier.urihttp://hdl.handle.net/123456789/14757
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kasselger
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjecthigh-performance concreteeng
dc.subjectprestressingeng
dc.subjectshape memory alloyseng
dc.subjectbond strengtheng
dc.subject.ddc620
dc.subject.ddc660
dc.titlePotential of Fe-Mn-Al-Ni Shape Memory Alloys for Internal Prestressing of Ultra-High Performance Concreteeng
dc.typeAufsatz
dcterms.abstractPrestressing of concrete is a commonly used technique in civil engineering to achieve long spans, reduced structural thicknesses, and resource savings. However, in terms of application, complex tensioning devices are necessary, and prestress losses due to shrinkage and creep of the concrete are unfavourable in terms of sustainability. In this work, a prestressing method using novel Fe-Mn-Al-Ni shape memory alloy rebars as a tensioning system in UHPC is investigated. A generated stress of about 130 MPa was measured for the shape memory alloy rebars. For the application in UHPC, the rebars are prestrained prior to the manufacturing process of the concrete samples. After sufficient hardening of the concrete, the specimens are heated inside an oven to activate the shape memory effect and, thus, to introduce the prestress into the surrounding UHPC. It is clearly shown that an improvement in maximum flexural strength and rigidity is achieved due to the thermal activation of the shape memory alloy rebars compared to non-activated rebars. Future research will have to focus on the design of the shape memory alloy rebars in relation to construction applications and the investigation of the long-term performance of the prestressing system.eng
dcterms.accessRightsopen access
dcterms.creatorSchleiting, Maximilian
dcterms.creatorWetzel, Alexander
dcterms.creatorBauer, André
dcterms.creatorFrenck, Johanna-Maria
dcterms.creatorNiendorf, Thomas
dcterms.creatorMiddendorf, Bernhard
dc.relation.doidoi:10.3390/ma16103816
dc.subject.swdUltrahochfester Betonger
dc.subject.swdVorspannungger
dc.subject.swdMemory-Legierungger
dc.subject.swdVerbundverhaltenger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1996-1944
dcterms.source.issueIssue 10
dcterms.source.journalMaterialseng
dcterms.source.volumeVolume 16
kup.iskupfalse
dcterms.source.articlenumber3816


Files in this item

Thumbnail
Name:
license_rdf
Size:
908bytes
Format:
application/rdf+xml
View/Open
Thumbnail
Name:
materials_16_03816.pdf
Size:
8.421Mb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record

Namensnennung 4.0 International
Except where otherwise noted, this item's license is described as Namensnennung 4.0 International