Bond Properties of NHL-Based Mortars with Viscosity-Modifying Water-Retentive Admixtures

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dc.contributor.authorŽižlavský, Tomášcs
dc.contributor.authorBayer, Patrikcs
dc.contributor.authorVyšvařil, Martincs
dc.coverage.issue7cs
dc.coverage.volume11cs
dc.date.accessioned2021-08-12T14:55:51Z
dc.date.available2021-08-12T14:55:51Z
dc.date.issued2021-06-25cs
dc.description.abstractThis article studies the influence of biopolymeric viscosity-modifying admixtures with water-retentive function on the physico-mechanical properties of natural hydraulic lime-based mortars and their adherence to the traditional fired-clay brick substrate. The use of admixtures increases the water/binder ratio, which in turn leads to a decrease in the strength of the mortars. The viscosity-modifying function improves the adhesive strength between mortar and pre-wetter brick by increasing the binder paste viscosity, while the water-retentive function along with increased water content may lead to a decrease in adhesive strength. On the contrary, water retention and increased water content are beneficial on a dry surface, while paste viscosity plays only a minor role. When subjected to temperature-varying cycles, the mortars are more prone to in-mortar failure during the pull-off test. The air-entraining function of some admixtures improves the frost resistance of the mortars; however, it would negatively affect the adhesive strength by incorporating pores into the contact zone between the mortar and brick substrate. This study showed that the use of some of the studied admixtures may improve the adhesion of mortar to the brick substrate.en
dc.formattextcs
dc.format.extent1-16cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMinerals. 2021, vol. 11, issue 7, p. 1-16.en
dc.identifier.doi10.3390/min11070685cs
dc.identifier.issn2075-163Xcs
dc.identifier.other171901cs
dc.identifier.urihttp://hdl.handle.net/11012/200959
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMineralscs
dc.relation.urihttps://www.mdpi.com/2075-163X/11/7/685cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2075-163X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectNHL-based mortaren
dc.subjectviscosity-modifying admixtureen
dc.subjectwater retentionen
dc.subjectair contenten
dc.subjectadhesive strengthen
dc.subjectflexural strengthen
dc.subjectcompressive strengthen
dc.subjectporosityen
dc.subjecthygric propertiesen
dc.subjectcontact zoneen
dc.titleBond Properties of NHL-Based Mortars with Viscosity-Modifying Water-Retentive Admixturesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-171901en
sync.item.dbtypeVAVen
sync.item.insts2021.08.12 16:55:51en
sync.item.modts2021.08.12 16:14:30en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav chemiecs
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