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Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine
Gellable composite materials (GCM) were prepared from a smelting slag of copper and nickel deposits and cement, and activated using gypsum and chemical activators. The effects of material ratio, dosage of chemical activators, and gypsum on the mechanical properties of GCM were studied. Our results s...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356638/ https://www.ncbi.nlm.nih.gov/pubmed/30669374 http://dx.doi.org/10.3390/ma12020303 |
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author | Wang, Lijuan Wei, Yanke Lv, Guocheng Liao, Libing Zhang, Dan |
author_facet | Wang, Lijuan Wei, Yanke Lv, Guocheng Liao, Libing Zhang, Dan |
author_sort | Wang, Lijuan |
collection | PubMed |
description | Gellable composite materials (GCM) were prepared from a smelting slag of copper and nickel deposits and cement, and activated using gypsum and chemical activators. The effects of material ratio, dosage of chemical activators, and gypsum on the mechanical properties of GCM were studied. Our results showed that the chemical activators of Na(2)SO(4), Na(2)SiO(3), NaOH, and Na(2)CO(3) could improve the compressive strength of the GCM. Considering the market cost and ease operation, the compressive strength of the GCM could be significantly improved with 2% Na(2)SO(4). The experiment results also showed that the compound chemical activator could improve the compressive strength of gelled material. The strength of GCM reaches 41.6 MPa when 2% gypsum and 80% of smelting slags of copper and nickel deposits were used, which met the national standards requirements of GCM. As such, it is expected that a large amount of copper and nickel mining smelting slag could be utilized for the production of cementitious materials. |
format | Online Article Text |
id | pubmed-6356638 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-63566382019-02-04 Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine Wang, Lijuan Wei, Yanke Lv, Guocheng Liao, Libing Zhang, Dan Materials (Basel) Article Gellable composite materials (GCM) were prepared from a smelting slag of copper and nickel deposits and cement, and activated using gypsum and chemical activators. The effects of material ratio, dosage of chemical activators, and gypsum on the mechanical properties of GCM were studied. Our results showed that the chemical activators of Na(2)SO(4), Na(2)SiO(3), NaOH, and Na(2)CO(3) could improve the compressive strength of the GCM. Considering the market cost and ease operation, the compressive strength of the GCM could be significantly improved with 2% Na(2)SO(4). The experiment results also showed that the compound chemical activator could improve the compressive strength of gelled material. The strength of GCM reaches 41.6 MPa when 2% gypsum and 80% of smelting slags of copper and nickel deposits were used, which met the national standards requirements of GCM. As such, it is expected that a large amount of copper and nickel mining smelting slag could be utilized for the production of cementitious materials. MDPI 2019-01-18 /pmc/articles/PMC6356638/ /pubmed/30669374 http://dx.doi.org/10.3390/ma12020303 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wang, Lijuan Wei, Yanke Lv, Guocheng Liao, Libing Zhang, Dan Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine |
title | Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine |
title_full | Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine |
title_fullStr | Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine |
title_full_unstemmed | Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine |
title_short | Experimental Studies on Chemical Activation of Cementitious Materials from Smelting Slag of Copper and Nickel Mine |
title_sort | experimental studies on chemical activation of cementitious materials from smelting slag of copper and nickel mine |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6356638/ https://www.ncbi.nlm.nih.gov/pubmed/30669374 http://dx.doi.org/10.3390/ma12020303 |
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