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A platform for research: civil engineering, architecture and urbanism
Development of One-part geopolymers based on industrial carbonate waste
https://orcid.org/0000-0001-5170-0611
https://orcid.org/0000-0001-8902-0144
Graphical abstract Display Omitted
Highlights Thermal activation of carbonate industrial waste produced solid activators. Calcinated Ca-Mg wastes are suitable as activators for one-part geopolymer. Metakaolin one-part geopolymers reached compressive strength of 20 MPa. The main one-part geopolymer crystalline binding phase is Stratlingite. One-part geopolymers activated by waste materials raise sustainability.
Abstract Growing environmental concerns have raised the need for sustainable alternatives to conventional Portland cement. In this research Ca/Mg-carbonate based industrial wastes were used to prepare solid alkali-activators for one-part geopolymers. Dolomite and limestone quarry dust and calcite industrial byproduct were thermally activated at 950-1000℃, transforming carbonates into Ca/Mg oxides. Metakaolin based one-part geopolymers were cast, utilizing the oxides as solid activators. The main crystalline phase formed was Stratlingite. Fair compressive strength (∼20 MPa) was measured after 40 days ambient curing. This study illustrates activated carbonate waste materials may be used as sustainable solid activators for one-part geopolymer synthesis.
Development of One-part geopolymers based on industrial carbonate waste
https://orcid.org/0000-0001-5170-0611
https://orcid.org/0000-0001-8902-0144
Graphical abstract Display Omitted
Highlights Thermal activation of carbonate industrial waste produced solid activators. Calcinated Ca-Mg wastes are suitable as activators for one-part geopolymer. Metakaolin one-part geopolymers reached compressive strength of 20 MPa. The main one-part geopolymer crystalline binding phase is Stratlingite. One-part geopolymers activated by waste materials raise sustainability.
Abstract Growing environmental concerns have raised the need for sustainable alternatives to conventional Portland cement. In this research Ca/Mg-carbonate based industrial wastes were used to prepare solid alkali-activators for one-part geopolymers. Dolomite and limestone quarry dust and calcite industrial byproduct were thermally activated at 950-1000℃, transforming carbonates into Ca/Mg oxides. Metakaolin based one-part geopolymers were cast, utilizing the oxides as solid activators. The main crystalline phase formed was Stratlingite. Fair compressive strength (∼20 MPa) was measured after 40 days ambient curing. This study illustrates activated carbonate waste materials may be used as sustainable solid activators for one-part geopolymer synthesis.
Development of One-part geopolymers based on industrial carbonate waste
https://orcid.org/0000-0001-5170-0611
https://orcid.org/0000-0001-8902-0144
Graphical abstract Display Omitted
Highlights Thermal activation of carbonate industrial waste produced solid activators. Calcinated Ca-Mg wastes are suitable as activators for one-part geopolymer. Metakaolin one-part geopolymers reached compressive strength of 20 MPa. The main one-part geopolymer crystalline binding phase is Stratlingite. One-part geopolymers activated by waste materials raise sustainability.
Abstract Growing environmental concerns have raised the need for sustainable alternatives to conventional Portland cement. In this research Ca/Mg-carbonate based industrial wastes were used to prepare solid alkali-activators for one-part geopolymers. Dolomite and limestone quarry dust and calcite industrial byproduct were thermally activated at 950-1000℃, transforming carbonates into Ca/Mg oxides. Metakaolin based one-part geopolymers were cast, utilizing the oxides as solid activators. The main crystalline phase formed was Stratlingite. Fair compressive strength (∼20 MPa) was measured after 40 days ambient curing. This study illustrates activated carbonate waste materials may be used as sustainable solid activators for one-part geopolymer synthesis.
Development of One-part geopolymers based on industrial carbonate waste
Willson-Levy, Rebecca (author) / Peled, Alva (author) / Klein-BenDavid, Ofra (author) / Bar-Nes, Gabriela (author)
2022-12-06
Article (Journal)
Electronic Resource
English
One-part geopolymer , Solid activator , Dolomite , Limestone , Calcite , Quarry dust , Industrial byproduct , Stratlingite , Sustainable , OPG , MK , Metakaolin , DQ , Dolomite quarry dust , CQ , Limestone quarry dust , CH , Calcite industrial by-product , T-950/1000°C , Thermal treatment at 950/1000°C , KDQ , Dolomite geopolymer formulation , KCQ , Limestone geopolymer formulation , KCH , Calcite geopolymer formulation
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