Development of Ultra High Performance Concrete and Reactive Powder Concrete with Nanosilica

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dc.contributor.authorHela, Rudolfcs
dc.contributor.authorBodnárová, Lenkacs
dc.contributor.authorRundt, Lukášcs
dc.coverage.issue1cs
dc.coverage.volume371cs
dc.date.accessioned2020-08-04T11:02:14Z
dc.date.available2020-08-04T11:02:14Z
dc.date.issued2018-06-19cs
dc.description.abstractThe article is dedicated to the design and production of Ultra High Performance Concrete (UHPC) and Reactive The article is dedicated to the design and production of Ultra High Performance Concrete (UHPC) and Reactive Powder Concrete (RPC) using silica fume and nanosilica. Nanosilica and fine steel fibres were used for the production of RPC. Compressive strengths of UHPC and RPC above 150 MPa have been achieved. It has been demonstrated that UHPC and RPC can be produced using standard concrete mixing system without the use of activating mixing and without a special treatment regime during maturing of the concrete. Aging of the concrete took place in a normal environment, without elevated pressure or temperature. The aging process at 20 °C allows the use of UHPC and RPC for the ready-mixed concrete when working on high volume construction projects. Even without thermal treatment, without the application of solidification pressure and without autoclaving, RPC reached a compressive strength of more than 180 MPa and a flexural tensile strength after 60 days greater than 22 MPa. The high tensile bending strength may be considered as the main advantage of RPC, as the RPC parameters allow, for instance, the use for pre-stressed structural elements where a high initial strength is also required.en
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIOP Conference Series: Materials Science and Engineering. 2018, vol. 371, issue 1, p. 1-8.en
dc.identifier.doi10.1088/1757-899X/371/1/012017cs
dc.identifier.issn1757-8981cs
dc.identifier.other149962cs
dc.identifier.urihttp://hdl.handle.net/11012/137156
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofIOP Conference Series: Materials Science and Engineeringcs
dc.relation.urihttp://iopscience.iop.org/article/10.1088/1757-899X/371/1/012017cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1757-8981/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectBending strengthen
dc.subjectCompressive strengthen
dc.subjectConcrete mixersen
dc.subjectConcrete mixingen
dc.subjectReady mixed concreteen
dc.subjectShotcretingen
dc.subjectSilica fumeen
dc.subjectSteel fibersen
dc.subjectTensile strengthen
dc.titleDevelopment of Ultra High Performance Concrete and Reactive Powder Concrete with Nanosilicaen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-149962en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:02:14en
sync.item.modts2020.08.04 12:20:40en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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