Naslov
Chemical shrinkage of hydrating calcium aluminate cement

Autori
Ukrainczyk, Neven ; Sušac, Ivana ; Matusinović, Tomislav

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

Izvornik
International conference on materials, tribology, recycling (MATRIB 2010) : zbornik radova = proceedings / Schauperl, Zdravko ; Šnajdar, Mateja - Zagreb : Hrvatsko društvo za materijale i tribologiju (HDMT), 2010, 499-511

ISBN
978-953-7040-18-5

Skup
International conference on materials, tribology, recycling

Mjesto i datum
Vela Luka, Hrvatska, 23.06.2010. - 25.06.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
calcium aluminate cement; hydration; chemical shrinkage; X-ray diffraction; mathematical modeling.

Sažetak
Hydraulic hardening of calcium aluminate cement (CAC) is primarily due to the hydration of mono-calciumaluminate, in idealized pure form CaAl2O4 (CA), but other compounds also participate in the hydration process especially at higher temperatures and in long term development. In this paper the early age hydration of synthetic CA and commercial iron-rich CAC were investigated by measurements of chemical shrinkage evolution and quantitative powder X-ray diffraction (QXRD) analysis. The influence of age of prepared CA was investigated. A simplified model is proposed to predict the evolution of chemical shrinkage during early age of the hydration. The model is based on the main chemical reaction scheme of the CA hydration at lower temperatures.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA