The microstructure of a cement composite based on a secondary raw materials

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dc.contributor.authorFigala, Petrcs
dc.contributor.authorDrochytka, Rostislavcs
dc.coverage.issue1cs
dc.coverage.volume385cs
dc.date.accessioned2019-04-03T03:55:02Z
dc.date.available2019-04-03T03:55:02Z
dc.date.issued2018-07-16cs
dc.description.abstractWaste management and its use as a secondary raw material is a matter that is being given increasing attention. Such raw materials also include waste products from the energy industry or municipal waste disposed of from the recycling process. This study explores the use of secondary raw materials in specific cement–based cement composite as a partial binder substitute. Selected secondary raw materials were pre–treated by grinding to a specific surface of 300 and 500 mkg. As a reference material, a commercially available mixture was selected to produce cement composites intended for the environment with high physical–mechanical demands. Cement was substituted by secondary raw materials at a rate of 20 and 40% in the reference recipe. Basic physical–mechanical characteristics such as compressive strength and tensile strength at bending were determined on standard 160×40×40 mm prisms. Strengths were determined after 3 and 28 days of ageing. In addition, the influence of binder substitute by the admixtures on the microstructure of cement stone was monitored by sample scanning using an RTG tomography. The positive effect of a part of the binder substitution by selected secondary raw materials on microstructure was proved in all tested samples. From the measured data, it is evident that the higher specific surface of the pre–treated admixtures did not have a significant positive effect either on strengths or the microstructure.en
dc.formattextcs
dc.format.extent1-6cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIOP Conference Series: Materials Science and Engineering. 2018, vol. 385, issue 1, p. 1-6.en
dc.identifier.doi10.1088/1757-899X/385/1/012012cs
dc.identifier.issn1757-899Xcs
dc.identifier.other149517cs
dc.identifier.urihttp://hdl.handle.net/11012/137188
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/385/1/012012cs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1757-899X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectsecondary raw materialen
dc.subjectslagen
dc.subjectwaste glassen
dc.subjectthe microstructureen
dc.subjectcement compositeen
dc.subjectdruhtná surovina
dc.subjectškvára
dc.subjectskelný recyklát
dc.subjectmikrostruktura
dc.subjectcementový kompozit
dc.titleThe microstructure of a cement composite based on a secondary raw materialsen
dc.title.alternativeMikrostruktura cementového kompozitu na bázi druhotných surovincs
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-149517en
sync.item.dbtypeVAVen
sync.item.insts2020.04.01 11:00:54en
sync.item.modts2020.04.01 06:05:52en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Centrum AdMaS - VP1 - MSHcs
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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