Model fluids substituting fresh UHPC mixtures flow behaviour

Kód výsledku v IS VaVaI

RIV/68407700:21220/23:00366758 - isvavai.cz

Nalezeny alternativní kódy

RIV/68407700:21610/23:00366758

Výsledek na webu

https://doi.org/10.1007/s00419-023-02412-5

DOI - Digital Object Identifier

10.1007/s00419-023-02412-5

Jazyk výsledku

angličtina

Název v původním jazyce

Model fluids substituting fresh UHPC mixtures flow behaviour

Popis výsledku v původním jazyce

Carboxymethylcellulose (CMC) and ultrasound gel (USG) seem to be suitable clear model fluids to substitute real ultra-high-performance concretes (UHPCs), enabling experimental monitoring of events occurring within these mixtures at similar flow behaviour. USG is eligible for UHPC mixtures with significant yield stress. CMC having a suitable concentration is better for UHPCs exhibiting indistinct yield stress. The rheological behaviour of real UHPC mixtures as well as substituting model fluids was measured using a non-standard system consisting of a vessel stirred by an anchor or a screw agitator. In addition, a standard rotational rheometer system with concentric cylinder geometry was used for optimization of the above-mentioned method of measurement and also for measuring the rheological parameters of the substituting model fluids. This article deals with the methodology for measuring the rheological properties of these substances and presents the results of the measurements using flow curves and rheological models.

Název v anglickém jazyce

Model fluids substituting fresh UHPC mixtures flow behaviour

Popis výsledku anglicky

Carboxymethylcellulose (CMC) and ultrasound gel (USG) seem to be suitable clear model fluids to substitute real ultra-high-performance concretes (UHPCs), enabling experimental monitoring of events occurring within these mixtures at similar flow behaviour. USG is eligible for UHPC mixtures with significant yield stress. CMC having a suitable concentration is better for UHPCs exhibiting indistinct yield stress. The rheological behaviour of real UHPC mixtures as well as substituting model fluids was measured using a non-standard system consisting of a vessel stirred by an anchor or a screw agitator. In addition, a standard rotational rheometer system with concentric cylinder geometry was used for optimization of the above-mentioned method of measurement and also for measuring the rheological parameters of the substituting model fluids. This article deals with the methodology for measuring the rheological properties of these substances and presents the results of the measurements using flow curves and rheological models.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

GA21-24070S: Model segregace vláken v závislosti na reologických vlastnostech čerstvého HPC

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Archive of Applied Mechanics

ISSN

0939-1533

e-ISSN

1432-0681

Svazek periodika

93

Číslo periodika v rámci svazku

April

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

2877-2890

Kód UT WoS článku

000963545700001

EID výsledku v databázi Scopus

2-s2.0-85152017231