Naslov
MULTICOMPONENT MODELLING OF PORTLAND CEMENT HYDRATION REACTIONS

Autori
Ukrainczyk, Neven ; Koenders, Eduard ; van Breugel, Klaas

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Second International Conference on Microstructural-related Durability of Cementitious Composites, RILEM Proceedings pro083 / Ye, G ; van Breugel, K ; Sun, W ; Miao, C.W. - Bagneux : RILEM Publications SARL, 2012, 228:1-228:8

ISBN
978-2-35158-129-2

Skup
Second International Conference on Microstructural-related Durability of Cementitious Composites

Mjesto i datum
Amsterdam, Nizozemska, 11.04.2012. - 13.04.2012

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cement; hydration; numerical modeling; microstructure; kinetics

Sažetak
The prospect of cement and concrete technologies depends on more in depth understanding of cement hydration reactions. Hydration reaction models simulate the development of the microstructures that can finally be used to estimate the cement based material properties that influence performance and service life. In this paper the multicomponent model of portland cement hydration reactions is implemented within the original Hymostruc model. The reaction kinetics of the four principal clinker minerals, C3S, C2S, C3A, C4AF, are coupled to the microstructure development. The nature of ettringite transformation to monosulfate is described by sequential chemical reactions of aluminate bearing clinker minerals. The calculated results of the model are shown and compared with systematic literature experimental results investigating the hydration of two different ordinary portland cements. Good agreement was obtained for the component fractional evolution and released heat during hydration.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Građevinarstvo, Kemijsko inženjerstvo

POVEZANOST RADA