Simultaneous Differential Scanning Calorimetry and Thermogravimetric Analysis of Portland Cement as a Function of Age

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00239388" target="_blank" >RIV/68407700:21110/16:00239388 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s10765-015-2028-7" target="_blank" >http://dx.doi.org/10.1007/s10765-015-2028-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10765-015-2028-7" target="_blank" >10.1007/s10765-015-2028-7</a>

Result language

angličtina

Original language name

Simultaneous Differential Scanning Calorimetry and Thermogravimetric Analysis of Portland Cement as a Function of Age

Original language description

We study the hydration and pozzolanic reactions of an ordinary Portland cement as a function of age, using the differential scanning calorimetry and thermogravimetry. The measurements are done for 2 days, 7 days, 28 days, 90 days, 180 days, and 360 days cured samples in order to monitor the rate of hydration. The investigation is performed in the temperature range from 25 °C to 1000 °C with a heating rate 5 °C-min-1 in an argon atmosphere. The temperature, enthalpy, and mass change during the decomposition of calcium silicate hydrate gels, ettringite, portlandite, vaterite, and calcite are determined, and the changes in the portlandite amount are estimated in dependence on the time of hydration.We found out that the temperature and enthalpy of liberation of physically bound water, C–S–H gels and ettringite decomposition (all occurring from 50 °C to 250 °C) and Portlandite decomposition (420 °C to 530 °C) decrease with hydration time of studied samples. On the other hand, vaterite and calcite decomposition (530 °C to 850 °C) the temperature varies and the enthalpy increases with hydration time of samples.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

<a href="/en/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Cumulative time dependent processes in building materials and structures</a><br>

Continuities

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

Publication year

2016

Confidentiality

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

Name of the periodical

International Journal of Thermophysics

ISSN

0195-928X

e-ISSN

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Volume of the periodical

37

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

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UT code for WoS article

000368053200012

EID of the result in the Scopus database

2-s2.0-84952916068