dc.contributor.author | Macijauskas, Mindaugas | |
dc.contributor.author | Girskas, Giedrius | |
dc.date.accessioned | 2023-09-18T17:12:07Z | |
dc.date.available | 2023-09-18T17:12:07Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 1407-7329 | |
dc.identifier.uri | https://etalpykla.vilniustech.lt/handle/123456789/120524 | |
dc.description.abstract | The article aims to present a research into the impact of dosage and effectiveness of commonly used plasticizing admixtures. More specifically, it focuses on rheological properties of the cement pastes (yield stresses and plastic viscosities) of different testing times (from 0 min to 90 min after mixing). The following materials were used in the study: Portland cement CEM I 42.5 R, plasticizer P (ligno-sulphonates based), superplasticizer SP1 (modified acrylic polymer based), superplasticizer SP2 (polycarboxylate esters based) and water. Experiments were carried out using rotational rheometer Rheotest RN4.1 with coaxial cylinders. It was observed that larger dosage of SP1 (0.6–1.2 %) results in slower increase in plasticizing effects until the 90 min margin. In conclusion, from the start of mixing until the 90 min margin, the best plasticizing effect and its retention are achieved by superplasticizer SP2. Recommended SP2 dosage varies within the range of 0.6 % to 0.8 %. | eng |
dc.format | PDF | |
dc.format.extent | p. 26-32 | |
dc.format.medium | tekstas / txt | |
dc.language.iso | eng | |
dc.relation.isreferencedby | DOAJ | |
dc.relation.isreferencedby | INSPEC | |
dc.relation.isreferencedby | J-Gate | |
dc.rights | Laisvai prieinamas internete | |
dc.source.uri | https://ortus.rtu.lv/science/en/publications/29035 | |
dc.source.uri | https://talpykla.elaba.lt/elaba-fedora/objects/elaba:27643963/datastreams/MAIN/content | |
dc.subject | SD03 - Pažangios statybinės medžiagos, statinių konstrukcijos ir technologijos / Innovative building materials, structures and techniques | |
dc.title | The influence of commonly used plasticizing admixtures on the plasticizing effect of cement paste | |
dc.type | Straipsnis kitoje DB / Article in other DB | |
dcterms.accessRights | This is an open access article licensed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), in the manner agreed with De Gruyter Open | |
dcterms.references | 33 | |
dc.type.pubtype | S3 - Straipsnis kitoje DB / Article in other DB | |
dc.contributor.institution | Vilniaus Gedimino technikos universitetas | |
dc.contributor.faculty | Statybos fakultetas / Faculty of Civil Engineering | |
dc.contributor.department | Statybinių medžiagų institutas / Institute of Building Materials | |
dc.subject.researchfield | T 008 - Medžiagų inžinerija / Material engineering | |
dc.subject.researchfield | T 002 - Statybos inžinerija / Construction and engineering | |
dc.subject.ltspecializations | C101 - Civilinės inžinerijos mokslo centras / | |
dc.subject.ltspecializations | L104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies | |
dc.subject.en | Portland cement paste | |
dc.subject.en | Yield stress | |
dc.subject.en | Plastic viscosity | |
dc.subject.en | Plasticizing admixtures | |
dc.subject.en | Rheological properties | |
dcterms.sourcetitle | Construction science : scientific journal of RTU | |
dc.description.issue | iss. 1 | |
dc.description.volume | Vol. 20 | |
dc.publisher.name | Riga Technical University | |
dc.publisher.city | Riga | |
dc.identifier.elaba | 27643963 | |