Early-stage hydration heat development in blended cements containing natural zeolite studied by isothermal calorimetry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00218231" target="_blank" >RIV/68407700:21110/14:00218231 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.tca.2014.03.003" target="_blank" >http://dx.doi.org/10.1016/j.tca.2014.03.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2014.03.003" target="_blank" >10.1016/j.tca.2014.03.003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Early-stage hydration heat development in blended cements containing natural zeolite studied by isothermal calorimetry

Popis výsledku v původním jazyce

Early-stage hydration heat development in blended Portland cement-based binders containing natural zeolite in an amount of up to 40% by mass is investigated using an isothermal heat flow calorimeter. Experimental results show that the presence of naturalzeolite in the blended binders accelerates the onset of C3S hydration and boosts the first phase of C3A hydration. The second phase of C3A hydration gains onimportance in the hydration process with the increasing zeolite dosage. For the zeolite contentshigherthan 30%, the maximum specific hydration heat power in this phase is even higher than the maximum corresponding to the C3S hydration. The effectiveness of the natural zeolite as a binder, as expressed bythe difference specific hydration heat per 1g of zeolite, is found to decrease with its increasing dosage in the blends. The replacement of Portland cement in an amount of 10% by mass by natural zeolitecan be considered as a limit for its effective use. Above this limit, a substan

Název v anglickém jazyce

Early-stage hydration heat development in blended cements containing natural zeolite studied by isothermal calorimetry

Popis výsledku anglicky

Early-stage hydration heat development in blended Portland cement-based binders containing natural zeolite in an amount of up to 40% by mass is investigated using an isothermal heat flow calorimeter. Experimental results show that the presence of naturalzeolite in the blended binders accelerates the onset of C3S hydration and boosts the first phase of C3A hydration. The second phase of C3A hydration gains onimportance in the hydration process with the increasing zeolite dosage. For the zeolite contentshigherthan 30%, the maximum specific hydration heat power in this phase is even higher than the maximum corresponding to the C3S hydration. The effectiveness of the natural zeolite as a binder, as expressed bythe difference specific hydration heat per 1g of zeolite, is found to decrease with its increasing dosage in the blends. The replacement of Portland cement in an amount of 10% by mass by natural zeolitecan be considered as a limit for its effective use. Above this limit, a substan

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Thermochimica Acta

ISSN

0040-6031

e-ISSN

—

Svazek periodika

582

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

53-58

Kód UT WoS článku

000335288000008

EID výsledku v databázi Scopus

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