| dc.contributor.author | Macijauskas, Mindaugas | |
| dc.contributor.author | Skripkiūnas, Gintautas | |
| dc.date.accessioned | 2023-09-18T17:18:47Z | |
| dc.date.available | 2023-09-18T17:18:47Z | |
| dc.date.issued | 2018 | |
| dc.identifier.issn | 1012-0394 | |
| dc.identifier.uri | https://etalpykla.vilniustech.lt/handle/123456789/121836 | |
| dc.description.abstract | The influence of concentration of cement particles φc on rheological behavior (flow behavior, dynamic yield stress, plastic viscosity) and thixotropy of the Portland cement CEM I 42.5 R paste was investigated in this research. Also, thixotropy was evaluated by index of reversible structure of Portland cement paste. Concentration of cement particles φc ranged from 0.434 to 0.518. Investigation was carried out using rotational rheometer Rheotest RN4.1 with coaxial cylinders. The tests revealed that as φc decreases from 0.518 to 0.434, rheological behavior of Portland cement paste is improved: yield stress decreases from 12.7 Pa to 7.1 Pa as well as plastic viscosity – from 4.3 Pa·s to 0.88 Pa·s. The exponential correlation between φc and index of reversible structure of Portland cement paste was found. As φc decreases from 0.518 to 0.434, index of reversible structure of Portland cement paste, which describes a thixotropy, decreases from 5291 Pa·min to 977 Pa·min. | eng |
| dc.format | PDF | |
| dc.format.extent | p. 27-34 | |
| dc.format.medium | tekstas / txt | |
| dc.language.iso | eng | |
| dc.relation.ispartofseries | Solid State Phenomena vol. 276 1012-0394 1662-9779 | |
| dc.relation.isreferencedby | Scopus | |
| dc.source.uri | https://doi.org/10.4028/www.scientific.net/SSP.276.27 | |
| dc.source.uri | https://www.scientific.net/SSP.276.27 | |
| dc.title | The influence of concentrations of cement particles on rheological behavior and thixotropy of portland cement paste | |
| dc.type | Straipsnis konferencijos darbų leidinyje Scopus DB / Paper in conference publication in Scopus DB | |
| dcterms.references | 17 | |
| dc.type.pubtype | P1b - Straipsnis konferencijos darbų leidinyje Scopus DB / Article in conference proceedings Scopus 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.vgtuprioritizedfields | SD0202 - Aplinką tausojančios statybinės medžiagos ir technologijos / Low emissions building materials and technologies | |
| dc.subject.ltspecializations | L104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies | |
| dc.subject.en | cement paste | |
| dc.subject.en | dynamic yield stress | |
| dc.subject.en | index of reversible structure | |
| dc.subject.en | plastic viscosity | |
| dc.subject.en | rheology | |
| dc.subject.en | thixotropy | |
| dcterms.sourcetitle | Solid state phenomena. Binders, materials and technologies in modern construction IV : the 16th International Conference Silicate Binders, ICBM 2017, Brno University of Technology | |
| dc.publisher.name | Trans Tech Publications Ltd | |
| dc.publisher.city | Zurich | |
| dc.identifier.doi | 2-s2.0-85049950710 | |
| dc.identifier.doi | 85049950710 | |
| dc.identifier.doi | 10.4028/www.scientific.net/SSP.276.27 | |
| dc.identifier.elaba | 30263848 | |
