An isothermal heat flow calorimeter for large-volume applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F12%3A00196922" target="_blank" >RIV/68407700:21110/12:00196922 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10973-011-1907-9" target="_blank" >http://dx.doi.org/10.1007/s10973-011-1907-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10973-011-1907-9" target="_blank" >10.1007/s10973-011-1907-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An isothermal heat flow calorimeter for large-volume applications

Popis výsledku v původním jazyce

Design, construction, calibration, and testing of a new isothermal heat flow calorimeter suitable for investigation of large-volume specimens are presented. The measuring vessel has the volume of 1370 cm3, and the calorimeter allows for the measurement at surrounding air temperatures of 5-60 C. A practical application of the device is demonstrated at the determination of specific hydration heat of cement paste and concrete with silicaaggregate size of up to 16 mm, having the same water/ cement ratio. The differences over the whole measuring time period of about 100 h are lower than 2% which indicates a good potential of the calorimeter for the measurement of total hydration heat of composite materials. A reference measurement of hydration heat of cement paste using common isothermal heat flow calorimeter with the measuring vessel of 1 cm3 shows an agreement within ?7%, which seems acceptable, taking into account the heat transport processes in the far larger specimens. The designed cal

Název v anglickém jazyce

An isothermal heat flow calorimeter for large-volume applications

Popis výsledku anglicky

Design, construction, calibration, and testing of a new isothermal heat flow calorimeter suitable for investigation of large-volume specimens are presented. The measuring vessel has the volume of 1370 cm3, and the calorimeter allows for the measurement at surrounding air temperatures of 5-60 C. A practical application of the device is demonstrated at the determination of specific hydration heat of cement paste and concrete with silicaaggregate size of up to 16 mm, having the same water/ cement ratio. The differences over the whole measuring time period of about 100 h are lower than 2% which indicates a good potential of the calorimeter for the measurement of total hydration heat of composite materials. A reference measurement of hydration heat of cement paste using common isothermal heat flow calorimeter with the measuring vessel of 1 cm3 shows an agreement within ?7%, which seems acceptable, taking into account the heat transport processes in the far larger specimens. The designed cal

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

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Analysis and Calorimetry

ISSN

1388-6150

e-ISSN

—

Svazek periodika

110

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

HU - Maďarsko

Počet stran výsledku

7

Strana od-do

1021-1027

Kód UT WoS článku

000310543000067

EID výsledku v databázi Scopus

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