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Acta Scientiarum Polonorum. Formatio Circumiectus
Article . 2016 . Peer-reviewed
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Acta Scientiarum Polonorum. Formatio Circumiectus
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THE CONSISTENCY OF CEMENT PASTES AND THEIR RHEOLOGICAL PARAMETERS

KONSYSTENCJA ZACZYNÓW CEMENTOWYCH A ICH PARAMETRY REOLOGICZNE
Authors: Marta Kasińska; Jan Kempiński; Robert Świerzko;

THE CONSISTENCY OF CEMENT PASTES AND THEIR RHEOLOGICAL PARAMETERS

Abstract

W pracy przedstawiono wyniki badań parametrów rozpływu oraz parametrów reologicznych zaczynów cementowych, wykonanych na bazie cementu portlandzkiego CMII 32,5R. Parametry rozpływu określono z wykorzystaniem specjalnej płyty trasowanej, natomiast cechy reologiczne określono za pomocą wiskozymetru rotacyjnego Viscotester VT 550, firmy Haake, o cylindrach współosiowych, wyposażonego w system MV2. Zaczyny cementowe stanowiły mieszaninę cementu z wodą. Koncentracja mieszaniny, określana za pomocą wskaźnika wodno-cementowego W/C, zmieniała się w zakresie 0,65–0,33. Przeprowadzono normowe oznaczenie wytrzymałości użytego cementu, ustalając zgodność z danymi producenta oraz określono zależność parametrów rozpływu od wskaźnika wodno-cementowego W/C. Otrzymane, z badań wiskozymetrycznych, pseudokrzywe płynięcia zaczynów cementowych skorygowano do rzeczywistych krzywych płynięcia i aproksymowano przy pomocy 3-parametrowego, uogólnionego modelu Herschela-Bulkley’a. Określono zależności parametrów reologicznych modeli τ0, k, n, w funkcji wskaźnika wodno-cementowego W/C. Ustalono występującą korelację pomiędzy parametrami reologicznymi i rozpływu dla badanych zaczynów cementowych.

Keywords

rheological model, slump, rheological parameters, Environmental engineering, cement pastes, TA170-171, Environmental technology. Sanitary engineering, TD1-1066

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
Average
Average
gold