Ladle furnace slag as cement replacement in mortar mixes
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2019
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Abstract
Ladle furnace slag is a significant by-product of the steel-making industry. Depending on the production conditions, the steel-refining process yields two types of basic slag, which are either low or high in silica and alumina, depending on the fluxing temperature and the saturation method. The present investigation focuses on the feasibility of producing mortar mixes, by incorporating both ladle furnace slag types in partial replacement of Portland cement, in amounts of 10%, 20%, 30% and 40% by weight. The fresh and hardened properties of the mortars are analysed, and the hydraulic properties of both types of ladle slag are evaluated. These kinds of by-products are affordable applications in mortars that add useful qualities to the building materials. Their use in partial replacement of cement contributes to global sustainability through the reduction of cement consumption, thereby reducing greenhouse gas emissions.
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Publisher Copyright: © 2019 International Committee of the SCMT conferences. All rights reserved.
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Ladle furnace (lf) slag , Mechanical behavior , Mortar mixes , Shrinkage , Supplementary cementitious materials (SCM) , Civil and Structural Engineering , Building and Construction , Mechanics of Materials , General Materials Science , SDG 9 - Industry, Innovation, and Infrastructure , SDG 13 - Climate Action
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Santamaria , A , Ortega-Lopez , V , Skaf , M , García , V , Gaitero , J J , San-Jose , J T & González , J J 2019 , ' Ladle furnace slag as cement replacement in mortar mixes ' , Sustainable Construction Materials and Technologies , vol. 1 .