A Method for Synthesizing Iron Silicate Slags to Evaluate Their Performance as Supplementary Cementitious Materials

Andersson, AntonLuleå tekniska universitet,Mineralteknik och metallurgi,Luleå University of Technology, Sweden (author)

Validerad;2023;Nivå 2;2023-08-07 (joosat);Licens fulltext: CC BY License
The financial support by Boliden AB was limited to funding, i.e., the participating researchers determined the design of this study, the collection, analysis, and interpretation of data, as well as the writing of the manuscript.
Utilizing iron silicate copper slag as supplementary cementitious material (SCM) is a means to improve resource efficiency and lower the carbon dioxide emissions from cement production. Despite multiple studies on the performance of these slags in SCM applications, the variations in cooling procedure, grinding, and methods for evaluating reactivity limit the ability to assess the influence of chemical composition on reactivity from the literature data. In this study, a methodology was developed to synthesize iron silicate slags, which were then evaluated for their inherent reactivity using the R-3 calorimeter-based experiments. The results demonstrated that laboratory-scale granulation produced the same reactivity as industrially granulated slag. Furthermore, a synthesized triplicate sample showed high repeatability. Based on these two aspects, this method can be used to systematically study the influence of chemical composition on the inherent reactivity of iron silicate slags while producing results that are directly translatable to industrial slags.

Brander, LinusRISE,Metodik för produktframtagning,Division of Built Environment—Infrastructure and Concrete, Research Institute of Sweden, SE-501 15 Borås, Sweden(Swepub:ri)linusbr@ri.se (author)
Lennartsson, AndreasLuleå tekniska universitet,Mineralteknik och metallurgi,Luleå University of Technology, Sweden(Swepub:ltu)lenann (author)
Roos, AkeBoliden AB, SE-101 20 Stockholm, Sweden (author)
Engström, FredrikLuleå tekniska universitet,Mineralteknik och metallurgi,Luleå University of Technology, Sweden(Swepub:ltu)fren (author)
Luleå tekniska universitetMineralteknik och metallurgi (creator_code:org_t)

By the author/editor: Andersson, Anton; Brander, Linus; Lennartsson, And ...; Roos, Ake; Engström, Fredri ...

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NATURAL SCIENCES: NATURAL SCIENCES; and Chemical Science ...; and Materials Chemis ...

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