Naslov
Hydration Process of Portland Cement Blended with Silica Fume

Autori
Ukrainczyk, Neven ; Zlopaša, Jure ; Eduard, Koenders

Izvornik
Advanced materials research (1022-6680) 699 (2013); 578-583

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
sustainable materials; pozzolanic reaction; silica fume; hydration; portland cement

Sažetak
The enormous carbon footprint associated with the global cement production (5-7%) asks for a radical change in the use of sustainable replacement materials in concrete. Replacement of cement by pozzolanic waste materials, being a by-product from industrial processes, has been widely recognized as the most promising route towards sustainable construction materials. This paper presents experimental study on hydration of commercial Portland cement blended with silica fume in replacement ratio of 15 mass %. Isothermal calorimetry was employed to monitor the hydration kinetics. Thermogravimetric analysis coupled by differential scanning calorimeter (TG/DSC) was used to investigate the formed hydration products at 1, 3, 7, and 28 days of hydration. Two different approaches for a dispersion of silica fume in cement paste were compared: ultrasound bath and addition of superplasticizer (polycarboxylic ether based).

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Građevinarstvo, Kemijsko inženjerstvo

POVEZANOST RADA