Hydration study of ternary blended cements containing ferronickel slag and natural pozzolan

作者：Lemonis N; Tsakiridis P E^*; Katsiotis N S; Antiohos S; Papageorgiou D; Katsiotis M S; Beazi Katsioti M

来源：Construction and Building Materials, 2015, 81: 130-139.

DOI：10.1016/j.conbuildmat.2015.02.046

• Ferronickel slag
• Pozzolan
• Blended cements
• Hydration

The present investigation focuses on the hydration evolution of ternary blended cements composed by natural pozzolan (NP) and ferronickel slag (FNS), which is produced during the pyrometallurgical treatment of laterites for the production of ferronickel. The slag and pozzolan were grounded to a specific surface area of 4000 cm(2)/g and twelve different cement mixtures were produced containing up to 20% Portland cement replacement with the above-mentioned cementitious materials. The produced blended cements were tested by determining their initial and final setting times, standard consistency, flow of normal mortar, soundness and compressive strength at 2, 7, 28, 56 and 90 days. X-ray diffraction and TG/DTG analyses were used for the determination of the hydration products, whereas the microstructure of the hardened cement pastes and their morphological characteristics were examined by scanning electron microscopy. According to the results, the

• 出版日期2015-4-15