Naslov
POZZOLANIC REACTIONS IN CEMENTITIOUS MATERIALS FOR SUBSURFACE APPLICATIONS

Autori
Ukrainczyk, Neven ; Zlopaša, Jure ; Koenders, Eduardus ; Rocha, Camila A.A. ; Filho, Romildo D.T.

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

Izvornik
Proceedings of the ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014 / - , 2014, 2014-24665:1

Skup
ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE2014

Mjesto i datum
San Francisco (CA), Sjedinjene Američke Države, 08.06.2014. - 13.06.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pozzolanic reaction; silica fume; hydration; blended cements; X-ray difraction; modeling

Sažetak
Silica fume (SF) is used as a constituent to formulate cementitious materials for subsurface (oil-well) applications, e.g. by the offshore industry. Using green supplementary pozzolanic materials like silica fume could both improve the material’s performance and the footprint of the sustainable solution. X-ray diffraction and isothermal calorimetry were employed to investigate the evolution of cement paste hydration (water to binder ratio 0.44) after 14 h, 3, 7, and 28 days of curing. Experimental results are presented for both cement pastes made of Class G Portland cement and for a blended paste system where 8% of the Class G cement has been replaced by silica fume. The results indicate beneficial effects of SF on the microstructural development of the slurry.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA