Detail publikačního výsledku
Properties of cement pastes with zeolite during early stage of hydration
BOHÁČ, M.; KUBÁTOVÁ, D.; NEČAS, R.; ZEZULOVÁ, A.; RYBOVÁ, A.; NOVOTNÝ, R.
Originální název
Properties of cement pastes with zeolite during early stage of hydration
Anglický název
Properties of cement pastes with zeolite during early stage of hydration
Druh
Stať ve sborníku v databázi WoS či Scopus
Originální abstrakt
Properties of cement pastes with various replacement levels of natural zeolite were tested by isothermal calorimetry and rotational rheology. Zeolite from the Eastern Slovakia region was used for tests. Kinetics of exothermic reaction during early stage of hydration were monitored by calorimetry. The role of different replacement level of zeolite on main rheological parameters is discussed in the paper. The onset point of formation of C-S-H products and the main calorimetric peak move to earlier times with increased zeolite content. Zeolite causes acceleration of hydration before the heat flow peak time and the following deceleration proportionally to its content. Zeolite in cement promotes the AFt formation, which increases the elastic response of fresh paste at the beginning of hydration. Trends of G’ and phase angle show that zeolite accelerates the hydration of C3S and early C-S-H formation.
Anglický abstrakt
Properties of cement pastes with various replacement levels of natural zeolite were tested by isothermal calorimetry and rotational rheology. Zeolite from the Eastern Slovakia region was used for tests. Kinetics of exothermic reaction during early stage of hydration were monitored by calorimetry. The role of different replacement level of zeolite on main rheological parameters is discussed in the paper. The onset point of formation of C-S-H products and the main calorimetric peak move to earlier times with increased zeolite content. Zeolite causes acceleration of hydration before the heat flow peak time and the following deceleration proportionally to its content. Zeolite in cement promotes the AFt formation, which increases the elastic response of fresh paste at the beginning of hydration. Trends of G’ and phase angle show that zeolite accelerates the hydration of C3S and early C-S-H formation.
Klíčová slova
cement, zeolite, hydration, calorimetry, rheology
Klíčová slova v angličtině
cement, zeolite, hydration, calorimetry, rheology
Autoři
BOHÁČ, M.; KUBÁTOVÁ, D.; NEČAS, R.; ZEZULOVÁ, A.; RYBOVÁ, A.; NOVOTNÝ, R.
Rok RIV
2017
Vydáno
04.08.2016
Nakladatel
Elsevier
Kniha
Procedia Engineering
ISSN
1877-7058
Periodikum
Procedia Engineering
Svazek
151
Číslo
1
Stát
Spojené království Velké Británie a Severního Irska
Strany od
2
Strany do
9
Strany počet
8
URL
Plný text v Digitální knihovně
BibTex
@inproceedings{BUT127113,
author="Martin {Boháč} and Dana {Kubátová} and Radovan {Nečas} and Anežka {Zezulová} and Alexandra {Rybová} and Radoslav {Novotný}",
title="Properties of cement pastes with zeolite during early stage of hydration",
booktitle="Procedia Engineering",
year="2016",
journal="Procedia Engineering",
volume="151",
number="1",
pages="2--9",
publisher="Elsevier",
doi="10.1016/j.proeng.2016.07.349",
issn="1877-7058",
url="https://www.sciencedirect.com/science/article/pii/S1877705816317374"
}Dokumenty