Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions
With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in...
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| Autor*in: |
Salman, Muhammad [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Rechteinformationen: |
Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Journal of hazardous materials - Amsterdam : Elsevier, 1975, 286(2015), Seite 211-219 |
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| Übergeordnetes Werk: |
volume:286 ; year:2015 ; pages:211-219 |
| Links: |
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| DOI / URN: |
10.1016/j.jhazmat.2014.12.046 |
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| 520 | |a With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. | ||
| 540 | |a Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. | ||
| 650 | 4 | |a Sodium Hydroxide - chemistry | |
| 650 | 4 | |a Silicates - chemistry | |
| 650 | 4 | |a Stainless Steel - chemistry | |
| 650 | 4 | |a Potassium Compounds - chemistry | |
| 650 | 4 | |a Hydroxides - chemistry | |
| 700 | 1 | |a Cizer, Özlem |4 oth | |
| 700 | 1 | |a Pontikes, Yiannis |4 oth | |
| 700 | 1 | |a Snellings, Ruben |4 oth | |
| 700 | 1 | |a Vandewalle, Lucie |4 oth | |
| 700 | 1 | |a Blanpain, Bart |4 oth | |
| 700 | 1 | |a Van Balen, Koen |4 oth | |
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10.1016/j.jhazmat.2014.12.046 doi PQ20160617 (DE-627)OLC1962313603 (DE-599)GBVOLC1962313603 (PRQ)c2343-8dc72acda5a9e74c201af7f2294bcdd9c6f9ca80d6b66cdeeb89607d11aefc0f0 (KEY)0002474020150000286000000211cementitiousbindersfromactivatedstainlesssteelrefi DE-627 ger DE-627 rakwb eng 530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Salman, Muhammad verfasserin aut Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. Sodium Hydroxide - chemistry Silicates - chemistry Stainless Steel - chemistry Potassium Compounds - chemistry Hydroxides - chemistry Cizer, Özlem oth Pontikes, Yiannis oth Snellings, Ruben oth Vandewalle, Lucie oth Blanpain, Bart oth Van Balen, Koen oth Enthalten in Journal of hazardous materials Amsterdam : Elsevier, 1975 286(2015), Seite 211-219 (DE-627)129442305 (DE-600)195278-X (DE-576)9129442303 0304-3894 nnns volume:286 year:2015 pages:211-219 http://dx.doi.org/10.1016/j.jhazmat.2014.12.046 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25577317 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_170 GBV_ILN_4012 43.13 AVZ 50.17 AVZ 58.53 AVZ AR 286 2015 211-219 |
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10.1016/j.jhazmat.2014.12.046 doi PQ20160617 (DE-627)OLC1962313603 (DE-599)GBVOLC1962313603 (PRQ)c2343-8dc72acda5a9e74c201af7f2294bcdd9c6f9ca80d6b66cdeeb89607d11aefc0f0 (KEY)0002474020150000286000000211cementitiousbindersfromactivatedstainlesssteelrefi DE-627 ger DE-627 rakwb eng 530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Salman, Muhammad verfasserin aut Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. Sodium Hydroxide - chemistry Silicates - chemistry Stainless Steel - chemistry Potassium Compounds - chemistry Hydroxides - chemistry Cizer, Özlem oth Pontikes, Yiannis oth Snellings, Ruben oth Vandewalle, Lucie oth Blanpain, Bart oth Van Balen, Koen oth Enthalten in Journal of hazardous materials Amsterdam : Elsevier, 1975 286(2015), Seite 211-219 (DE-627)129442305 (DE-600)195278-X (DE-576)9129442303 0304-3894 nnns volume:286 year:2015 pages:211-219 http://dx.doi.org/10.1016/j.jhazmat.2014.12.046 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25577317 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_170 GBV_ILN_4012 43.13 AVZ 50.17 AVZ 58.53 AVZ AR 286 2015 211-219 |
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10.1016/j.jhazmat.2014.12.046 doi PQ20160617 (DE-627)OLC1962313603 (DE-599)GBVOLC1962313603 (PRQ)c2343-8dc72acda5a9e74c201af7f2294bcdd9c6f9ca80d6b66cdeeb89607d11aefc0f0 (KEY)0002474020150000286000000211cementitiousbindersfromactivatedstainlesssteelrefi DE-627 ger DE-627 rakwb eng 530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Salman, Muhammad verfasserin aut Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. Sodium Hydroxide - chemistry Silicates - chemistry Stainless Steel - chemistry Potassium Compounds - chemistry Hydroxides - chemistry Cizer, Özlem oth Pontikes, Yiannis oth Snellings, Ruben oth Vandewalle, Lucie oth Blanpain, Bart oth Van Balen, Koen oth Enthalten in Journal of hazardous materials Amsterdam : Elsevier, 1975 286(2015), Seite 211-219 (DE-627)129442305 (DE-600)195278-X (DE-576)9129442303 0304-3894 nnns volume:286 year:2015 pages:211-219 http://dx.doi.org/10.1016/j.jhazmat.2014.12.046 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25577317 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_170 GBV_ILN_4012 43.13 AVZ 50.17 AVZ 58.53 AVZ AR 286 2015 211-219 |
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10.1016/j.jhazmat.2014.12.046 doi PQ20160617 (DE-627)OLC1962313603 (DE-599)GBVOLC1962313603 (PRQ)c2343-8dc72acda5a9e74c201af7f2294bcdd9c6f9ca80d6b66cdeeb89607d11aefc0f0 (KEY)0002474020150000286000000211cementitiousbindersfromactivatedstainlesssteelrefi DE-627 ger DE-627 rakwb eng 530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Salman, Muhammad verfasserin aut Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. Sodium Hydroxide - chemistry Silicates - chemistry Stainless Steel - chemistry Potassium Compounds - chemistry Hydroxides - chemistry Cizer, Özlem oth Pontikes, Yiannis oth Snellings, Ruben oth Vandewalle, Lucie oth Blanpain, Bart oth Van Balen, Koen oth Enthalten in Journal of hazardous materials Amsterdam : Elsevier, 1975 286(2015), Seite 211-219 (DE-627)129442305 (DE-600)195278-X (DE-576)9129442303 0304-3894 nnns volume:286 year:2015 pages:211-219 http://dx.doi.org/10.1016/j.jhazmat.2014.12.046 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25577317 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_170 GBV_ILN_4012 43.13 AVZ 50.17 AVZ 58.53 AVZ AR 286 2015 211-219 |
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10.1016/j.jhazmat.2014.12.046 doi PQ20160617 (DE-627)OLC1962313603 (DE-599)GBVOLC1962313603 (PRQ)c2343-8dc72acda5a9e74c201af7f2294bcdd9c6f9ca80d6b66cdeeb89607d11aefc0f0 (KEY)0002474020150000286000000211cementitiousbindersfromactivatedstainlesssteelrefi DE-627 ger DE-627 rakwb eng 530 DNB 43.13 bkl 50.17 bkl 58.53 bkl Salman, Muhammad verfasserin aut Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. Nutzungsrecht: Copyright © 2014 Elsevier B.V. All rights reserved. Sodium Hydroxide - chemistry Silicates - chemistry Stainless Steel - chemistry Potassium Compounds - chemistry Hydroxides - chemistry Cizer, Özlem oth Pontikes, Yiannis oth Snellings, Ruben oth Vandewalle, Lucie oth Blanpain, Bart oth Van Balen, Koen oth Enthalten in Journal of hazardous materials Amsterdam : Elsevier, 1975 286(2015), Seite 211-219 (DE-627)129442305 (DE-600)195278-X (DE-576)9129442303 0304-3894 nnns volume:286 year:2015 pages:211-219 http://dx.doi.org/10.1016/j.jhazmat.2014.12.046 Volltext http://www.ncbi.nlm.nih.gov/pubmed/25577317 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_170 GBV_ILN_4012 43.13 AVZ 50.17 AVZ 58.53 AVZ AR 286 2015 211-219 |
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Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions |
| abstract |
With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. |
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With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. |
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With an aim of producing high value cementitious binder, stainless steel refining slag containing a high amount of CaO in γ-dicalcium silicate form was activated with NaOH and Na-silicate as well as KOH and K-silicate solutions, followed by steam curing at 80 °C. Higher levels of alkali-silicate in the activating solution resulted in higher cumulative heat suggesting accelerated reaction kinetics. With respect to compressive strength, higher levels of alkali silicate resulted in higher strength and the mortars with Na activator were found to have higher early strength than the ones with K activator. The long term strength was found to be similar, regardless of the alkali metal. Thermogravimetric, QXRD and FTIR analyses showed an increase in the amount of reaction products (C-S-H type) over time, further confirming the reactivity of the crystalline slag. Batch leaching results showed lower leaching of heavy metals and metalloids with K activator compared to the Na activator. These results demonstrate that the alkali type and the ratio of hydroxide to silicates have a significant impact on the hydration and mechanical strength development of the stainless steel slag. The above findings can aid in the recycling and valorization of these type of slags which otherwise end up landfilled. |
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Cementitious binders from activated stainless steel refining slag and the effect of alkali solutions |
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