RT Journal Article
T1 Effect of high-alumina ladle furnace slag as cement substitution in masonry mortars
A1 Herrero, Tamara
A1 Vegas, Iñigo J.
A1 Santamaría, Amaia
A1 San-José, José T.
A1 Skaf, Marta
AB Ladle furnace (white or basic) slag is a significant by-product of the steelmaking industry; nowadays the manufacturing process yields two types of basic slag that are either low or high in alumina. The present research focuses mainly on the composition of the high-alumina slag and the reactivity of its compounds such as calcium aluminates, free calcium oxide, and free magnesium oxide, when aged at room temperature and at water steam temperature (accelerated aging). Additionally, a characterization was performed of pastes and masonry mortars that incorporate high alumina ladle furnace slag as a supplementary cementing material in partial substitution of Portland cement in amounts of 10% and 20% by weight. Different properties are studied such as porosity distribution, volumetric stability, mechanical strength and durability, mainly referring to wetting-drying aging cycles. The study concludes that high-alumina ladle furnace slag can induce slight hydraulic reactivity and its partial addition has no negative effect on the fundamental properties of cement masonry mortars.
SN 0950-0618
YR 2016
FD 2016-10-01
LA eng
NO Herrero , T , Vegas , I J , Santamaría , A , San-José , J T & Skaf , M 2016 , ' Effect of high-alumina ladle furnace slag as cement substitution in masonry mortars ' , Construction and Building Materials , vol. 123 , pp. 404-413 . https://doi.org/10.1016/j.conbuildmat.2016.07.014
NO Publisher Copyright: © 2016 Elsevier Ltd
NO Our thanks to the Basque Government for financial support to Research Group IT781-13, to the Vice-Rectorate of Investigation of the University of the Basque Country (UPV/EHU) for Grant PIF 2013 and, likewise, to the Spanish Ministry MINECO and FEDER Funds for financial support through Project BlueCons: BIA2014-55576-C2-2-R. Part of this research work was also conducted within the FISSAC project framework (European Union’s Horizon 2020 under Grant agreement No. 642154). We are also grateful to assistance with materials from two companies: Arcelor Mittal (Sestao-Vizcaya) and Morteros y Revocos Bikain.
DS TECNALIA Publications
RD 7 sept 2024