Rheological properties of belite-rich cement doped with sulfur

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F19%3AN0000054" target="_blank" >RIV/26232511:_____/19:N0000054 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/26232511:_____/19:N0000091

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/583/1/012027" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/583/1/012027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/583/1/012027" target="_blank" >10.1088/1757-899X/583/1/012027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rheological properties of belite-rich cement doped with sulfur

Popis výsledku v původním jazyce

Reactive belite cement based on clinker doped with sulfur is a new type of low-energy cement that is still in the laboratory testing phase. In terms of application, one of the desired properties of new cement is its well-defined rheological behavior in fresh state. The chemical composition of the belite cement was determined by wet chemistry analysis, the phase composition of the belite cement clinker by quantitative X-ray powder diffraction analysis and microscopic point counting and specific surface by Blaine method. Rheological properties were determined by rotational rheometer in flow and oscillation regime. Shear and time dependent rheological parameters were calculated from flow curves. Stability of belite cement paste was judged based on the critical strain determination in amplitude sweep test. Setting was evaluated by Tussenbrock needle penetration test and oscillation time test on rheometer. The properties of the laboratory belite cement were correlated to industrial cement CEM I, CEM II/A-LL and CEM III/A. Reactive belite cement pastes show good flow properties both due to small amount of alite and larger amount of rounded belite grains and clusters. Belite rich cement show decent stability comparable to CEM III and very good dispersing efficiency of PCE based HRWR.

Název v anglickém jazyce

Rheological properties of belite-rich cement doped with sulfur

Popis výsledku anglicky

Reactive belite cement based on clinker doped with sulfur is a new type of low-energy cement that is still in the laboratory testing phase. In terms of application, one of the desired properties of new cement is its well-defined rheological behavior in fresh state. The chemical composition of the belite cement was determined by wet chemistry analysis, the phase composition of the belite cement clinker by quantitative X-ray powder diffraction analysis and microscopic point counting and specific surface by Blaine method. Rheological properties were determined by rotational rheometer in flow and oscillation regime. Shear and time dependent rheological parameters were calculated from flow curves. Stability of belite cement paste was judged based on the critical strain determination in amplitude sweep test. Setting was evaluated by Tussenbrock needle penetration test and oscillation time test on rheometer. The properties of the laboratory belite cement were correlated to industrial cement CEM I, CEM II/A-LL and CEM III/A. Reactive belite cement pastes show good flow properties both due to small amount of alite and larger amount of rounded belite grains and clusters. Belite rich cement show decent stability comparable to CEM III and very good dispersing efficiency of PCE based HRWR.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/GA19-05762S" target="_blank" >GA19-05762S: Hydratace a vlastnosti reaktivních vysocebelitických cementů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IOP Conference Series: Materials Science and Engineering

ISSN

17578981

e-ISSN

1757899X

Svazek periodika

583

Číslo periodika v rámci svazku

2019

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1-7

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85072098162