Hydration heat development in blended cements containing fine-ground ceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00194195" target="_blank" >RIV/68407700:21110/12:00194195 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.tca.2012.05.022" target="_blank" >http://dx.doi.org/10.1016/j.tca.2012.05.022</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tca.2012.05.022" target="_blank" >10.1016/j.tca.2012.05.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydration heat development in blended cements containing fine-ground ceramics

Popis výsledku v původním jazyce

The hydration heat development in blended cements containing up to 60% of fine-ground ceramics as Portland cement replacement is analyzed using an isothermal heat flow calorimeter. Experimental results show that the specific hydration heat of blended cements decreases up to two times, as compared with the reference Portland cement. The ceramics slightly retards the C3S hydration process but the first phase of C3A hydration and the dormant period are within the same time range for all analyzed ceramics contents. The replacement of Portland cement in the blended binder by fine-ground ceramics is found not effective for the ceramics amount higher than 20% by mass. Above this limit a substantial part of ceramics does not participate in the hydration process, and plays a role of a fine filler instead. The limited participation of the ceramics in the blended-cement hydration can explain the fast decrease in compressive strength and increase in the liquid water transport rate for the ceramics

Název v anglickém jazyce

Hydration heat development in blended cements containing fine-ground ceramics

Popis výsledku anglicky

The hydration heat development in blended cements containing up to 60% of fine-ground ceramics as Portland cement replacement is analyzed using an isothermal heat flow calorimeter. Experimental results show that the specific hydration heat of blended cements decreases up to two times, as compared with the reference Portland cement. The ceramics slightly retards the C3S hydration process but the first phase of C3A hydration and the dormant period are within the same time range for all analyzed ceramics contents. The replacement of Portland cement in the blended binder by fine-ground ceramics is found not effective for the ceramics amount higher than 20% by mass. Above this limit a substantial part of ceramics does not participate in the hydration process, and plays a role of a fine filler instead. The limited participation of the ceramics in the blended-cement hydration can explain the fast decrease in compressive strength and increase in the liquid water transport rate for the ceramics

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

2012

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

543

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

125-129

Kód UT WoS článku

000307419500016

EID výsledku v databázi Scopus

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