Naslov
Modeling of Solid Fraction Evolution During Calcium Aluminate Cement Hydration

Autori
Ukrainczyk, Neven ; Matusinović, Tomislav,

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

Izvornik
Proceedings of the International RILEM Conference Material Science (MatSci): Vol II Modeling of Heterogenous Materials (HetMat) (PRO 76) / W. Brameshuber - Aachen : RILEM Publications SARL, 2010, 189-198

ISBN
978-2-35158-109-4

Skup
International Conference On Material Science (MatSci): Vol II Modeling of Heterogenous Materials (HetMat)

Mjesto i datum
Aachen, Njemačka, 06.06.2010. - 09.06.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
calcium aluminate cement; hydration; mathematical modeling.

Sažetak
Calcium aluminate cement (CAC) is a special cement advantageously employed with high performance in many specific applications. Knowledge of the hydration reactions and microstructure evolution is important from the viewpoint of safe usage, good durability and functionality. The hydration of CAC is highly temperature dependent, yielding different hydration products that alter material properties. During the setting and hardening, microstructure of material and amounts of certain phases are changing. The solid fraction comprises the formed hydration products and the fraction of non-reacted cement. This paper presents a study of the solid volume evolution during early age hydration of CAC. The hydration of specimens of commercial iron-rich CAC (Istra 40) has been investigated by thermo-gravimetric analysis, density measurements and powder X-ray diffraction (XRD). Mathematical model of the solid volume evolution based on the main reaction scheme of the principal mineral hydration is presented. The model predictions are compared to the experimental results.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA