Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials

Florian Roman Steindl; Klaus Doschek-Held; Katharina Weisser; Joachim Juhart; Cyrill Grengg; Dominik Wohlmuth; Florian Mittermayr

doi:10.1007/978-3-031-33187-9_15

Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials

Florian Roman Steindl^*, Klaus Doschek-Held, Katharina Weisser, Joachim Juhart, Cyrill Grengg, Dominik Wohlmuth, Florian Mittermayr

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

In contrast to granulated blast-furnace slag (GBFS), many other industrial residues and by-products such as steel slags are currently not utilised to produce hydraulic or alkali-activated binders. Simultaneously, the building materials industry is confronted with steadily growing demands for increased CO₂ and resource efficiency, as well as dwindling supplies of traditional supplementary cementitious materials. This contribution covers the characterisation of slag-like compounds prior to and after carbothermal treatment, with respect to their utilisation potential as binder components. The treated materials were highly amorphous with a favourable chemical composition - particularly high contents of CaO, SiO₂, Al₂O₃ and MgO, high (CaO+MgO)/SiO₂-ratios (>1.0, ideally > 1.2) and low amounts of unwanted impurities like Fe- and Mn-containing compounds. Subsequent characterisation of the reactivity of the processed materials revealed high hydraulic activity (activity index up to >100% after 28 days) and suitability for alkali-activation. In contrast, the untreated materials showed only insufficient hydraulic activity but could successfully be used as binder components in alkali-activated materials. Chemical indices based on the amorphous content and the content of CaO, MgO, Al₂O₃, SiO₂, FeO and MnO were identified as suitable control parameters for estimating the potential hydraulic activity of slag-like materials.

Original language	English
Title of host publication	International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
Subtitle of host publication	SynerCrete’23
Editors	Agnieszka Jędrzejewska, Fragkoulis Kanavaris, Miguel Azenha, Farid Benboudjema, Dirk Schlicke
Publisher	Springer Science and Business Media B.V.
Pages	153-164
Number of pages	12
Volume	2
Edition	1
ISBN (Electronic)	978-3-031-33187-9
ISBN (Print)	978-3-031-33186-2, 978-3-031-33189-3
DOIs	https://doi.org/10.1007/978-3-031-33187-9_15
Publication status	Published - 2023
Event	International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures: SynerCrete 2023 - Milos Island, Greece Duration: 14 Jun 2023 → 16 Jun 2023 https://synercrete.com/

Publication series

Name	RILEM Bookseries
Volume	44

Conference

Conference	International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
Abbreviated title	SynerCrete '23
Country/Territory	Greece
City	Milos Island
Period	14/06/23 → 16/06/23
Internet address	https://synercrete.com/

Keywords

alkali-activated materials
circular building materials economy
CO -reduced binders
hydration
reactivity
SCMs

ASJC Scopus subject areas

Mechanics of Materials
Building and Construction
Civil and Structural Engineering

Fields of Expertise

Advanced Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/978-3-031-33187-9_15

Cite this

Steindl, F. R., Doschek-Held, K., Weisser, K., Juhart, J., Grengg, C., Wohlmuth, D., & Mittermayr, F. (2023). Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials. In A. Jędrzejewska, F. Kanavaris, M. Azenha, F. Benboudjema, & D. Schlicke (Eds.), International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures : SynerCrete’23 (1 ed., Vol. 2, pp. 153-164). (RILEM Bookseries; Vol. 44). Springer Science and Business Media B.V.. https://doi.org/10.1007/978-3-031-33187-9_15

Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials. / Steindl, Florian Roman; Doschek-Held, Klaus; Weisser, Katharina et al.
International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures : SynerCrete’23. ed. / Agnieszka Jędrzejewska; Fragkoulis Kanavaris; Miguel Azenha; Farid Benboudjema; Dirk Schlicke. Vol. 2 1. ed. Springer Science and Business Media B.V., 2023. p. 153-164 (RILEM Bookseries; Vol. 44).

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Steindl, FR, Doschek-Held, K, Weisser, K , Juhart, J , Grengg, C, Wohlmuth, D & Mittermayr, F 2023, Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials. in A Jędrzejewska, F Kanavaris, M Azenha, F Benboudjema & D Schlicke (eds), International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures : SynerCrete’23. 1 edn, vol. 2, RILEM Bookseries, vol. 44, Springer Science and Business Media B.V., pp. 153-164, International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures, Milos Island, Greece, 14/06/23. https://doi.org/10.1007/978-3-031-33187-9_15

Steindl FR, Doschek-Held K, Weisser K , Juhart J , Grengg C, Wohlmuth D et al. Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials. In Jędrzejewska A, Kanavaris F, Azenha M, Benboudjema F, Schlicke D, editors, International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures : SynerCrete’23. 1 ed. Vol. 2. Springer Science and Business Media B.V. 2023. p. 153-164. (RILEM Bookseries). doi: 10.1007/978-3-031-33187-9_15

Steindl, Florian Roman ; Doschek-Held, Klaus ; Weisser, Katharina et al. / Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials. International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures : SynerCrete’23. editor / Agnieszka Jędrzejewska ; Fragkoulis Kanavaris ; Miguel Azenha ; Farid Benboudjema ; Dirk Schlicke. Vol. 2 1. ed. Springer Science and Business Media B.V., 2023. pp. 153-164 (RILEM Bookseries).

@inbook{c83953821d494b37a7103320ae595ee4,

title = "Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials",

abstract = "In contrast to granulated blast-furnace slag (GBFS), many other industrial residues and by-products such as steel slags are currently not utilised to produce hydraulic or alkali-activated binders. Simultaneously, the building materials industry is confronted with steadily growing demands for increased CO2 and resource efficiency, as well as dwindling supplies of traditional supplementary cementitious materials. This contribution covers the characterisation of slag-like compounds prior to and after carbothermal treatment, with respect to their utilisation potential as binder components. The treated materials were highly amorphous with a favourable chemical composition - particularly high contents of CaO, SiO2, Al2O3 and MgO, high (CaO+MgO)/SiO2-ratios (>1.0, ideally > 1.2) and low amounts of unwanted impurities like Fe- and Mn-containing compounds. Subsequent characterisation of the reactivity of the processed materials revealed high hydraulic activity (activity index up to >100% after 28 days) and suitability for alkali-activation. In contrast, the untreated materials showed only insufficient hydraulic activity but could successfully be used as binder components in alkali-activated materials. Chemical indices based on the amorphous content and the content of CaO, MgO, Al2O3, SiO2, FeO and MnO were identified as suitable control parameters for estimating the potential hydraulic activity of slag-like materials.",

keywords = "alkali-activated materials, circular building materials economy, CO -reduced binders, hydration, reactivity, SCMs",

author = "Steindl, {Florian Roman} and Klaus Doschek-Held and Katharina Weisser and Joachim Juhart and Cyrill Grengg and Dominik Wohlmuth and Florian Mittermayr",

year = "2023",

doi = "10.1007/978-3-031-33187-9_15",

language = "English",

isbn = "978-3-031-33186-2",

volume = "2",

series = "RILEM Bookseries",

publisher = "Springer Science and Business Media B.V.",

pages = "153--164",

editor = "Agnieszka J{\c e}drzejewska and Fragkoulis Kanavaris and Miguel Azenha and Farid Benboudjema and Dirk Schlicke",

booktitle = "International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures",

edition = "1",

note = "International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures : SynerCrete 2023, SynerCrete '23 ; Conference date: 14-06-2023 Through 16-06-2023",

url = "https://synercrete.com/",

}

TY - CHAP

T1 - Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials

AU - Steindl, Florian Roman

AU - Doschek-Held, Klaus

AU - Weisser, Katharina

AU - Juhart, Joachim

AU - Grengg, Cyrill

AU - Wohlmuth, Dominik

AU - Mittermayr, Florian

PY - 2023

Y1 - 2023

N2 - In contrast to granulated blast-furnace slag (GBFS), many other industrial residues and by-products such as steel slags are currently not utilised to produce hydraulic or alkali-activated binders. Simultaneously, the building materials industry is confronted with steadily growing demands for increased CO2 and resource efficiency, as well as dwindling supplies of traditional supplementary cementitious materials. This contribution covers the characterisation of slag-like compounds prior to and after carbothermal treatment, with respect to their utilisation potential as binder components. The treated materials were highly amorphous with a favourable chemical composition - particularly high contents of CaO, SiO2, Al2O3 and MgO, high (CaO+MgO)/SiO2-ratios (>1.0, ideally > 1.2) and low amounts of unwanted impurities like Fe- and Mn-containing compounds. Subsequent characterisation of the reactivity of the processed materials revealed high hydraulic activity (activity index up to >100% after 28 days) and suitability for alkali-activation. In contrast, the untreated materials showed only insufficient hydraulic activity but could successfully be used as binder components in alkali-activated materials. Chemical indices based on the amorphous content and the content of CaO, MgO, Al2O3, SiO2, FeO and MnO were identified as suitable control parameters for estimating the potential hydraulic activity of slag-like materials.

AB - In contrast to granulated blast-furnace slag (GBFS), many other industrial residues and by-products such as steel slags are currently not utilised to produce hydraulic or alkali-activated binders. Simultaneously, the building materials industry is confronted with steadily growing demands for increased CO2 and resource efficiency, as well as dwindling supplies of traditional supplementary cementitious materials. This contribution covers the characterisation of slag-like compounds prior to and after carbothermal treatment, with respect to their utilisation potential as binder components. The treated materials were highly amorphous with a favourable chemical composition - particularly high contents of CaO, SiO2, Al2O3 and MgO, high (CaO+MgO)/SiO2-ratios (>1.0, ideally > 1.2) and low amounts of unwanted impurities like Fe- and Mn-containing compounds. Subsequent characterisation of the reactivity of the processed materials revealed high hydraulic activity (activity index up to >100% after 28 days) and suitability for alkali-activation. In contrast, the untreated materials showed only insufficient hydraulic activity but could successfully be used as binder components in alkali-activated materials. Chemical indices based on the amorphous content and the content of CaO, MgO, Al2O3, SiO2, FeO and MnO were identified as suitable control parameters for estimating the potential hydraulic activity of slag-like materials.

KW - alkali-activated materials

KW - circular building materials economy

KW - CO -reduced binders

KW - hydration

KW - reactivity

KW - SCMs

UR - http://www.scopus.com/inward/record.url?scp=85162167340&partnerID=8YFLogxK

U2 - 10.1007/978-3-031-33187-9_15

DO - 10.1007/978-3-031-33187-9_15

M3 - Chapter

AN - SCOPUS:85162167340

SN - 978-3-031-33186-2

SN - 978-3-031-33189-3

VL - 2

T3 - RILEM Bookseries

SP - 153

EP - 164

BT - International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures

A2 - Jędrzejewska, Agnieszka

A2 - Kanavaris, Fragkoulis

A2 - Azenha, Miguel

A2 - Benboudjema, Farid

A2 - Schlicke, Dirk

PB - Springer Science and Business Media B.V.

T2 - International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures

Y2 - 14 June 2023 through 16 June 2023

ER -

Mineral Residues and By-Products Upcycled into Reactive Binder Components for Cementitious Materials

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Fields of Expertise

UN SDGs

Access to Document

Other files and links

Fingerprint