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A new expansion material used for roof-contacted filling based on smelting slag
The improper handling of smelting slag will seriously pollute the environment, and the unfilled roof of the goaf of the mine will threaten the safety of the mine. Expansion materials have attracted more and more attention because of their excellent properties. In this paper, copper-nickel smelting s...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7844011/ https://www.ncbi.nlm.nih.gov/pubmed/33510244 http://dx.doi.org/10.1038/s41598-021-81891-4 |
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author | Na, Hua Lv, Guocheng Wang, Lijuan Liao, Libing Zhang, Dan Guo, Lijie Li, Wenchen |
author_facet | Na, Hua Lv, Guocheng Wang, Lijuan Liao, Libing Zhang, Dan Guo, Lijie Li, Wenchen |
author_sort | Na, Hua |
collection | PubMed |
description | The improper handling of smelting slag will seriously pollute the environment, and the unfilled roof of the goaf of the mine will threaten the safety of the mine. Expansion materials have attracted more and more attention because of their excellent properties. In this paper, copper-nickel smelting slag that has some active ingredients of gelling is used instead of traditional aggregate and some part of cement in order to reduce its pollution to the environment and its costs. For safety reasons, hydrogen peroxide was chosen as the foaming agent. Sodium silicate and hexadecyl trimethyl ammonium bromide (CTAB) are used as additives. Our results showed that after 28 days of curing, the material has better mechanical properties and the early compressive strength of the material was enhanced by sodium silicate. The efficiency of foaming was improved by CTAB. It also proves that copper–nickel smelting slag can be used in expansion material. At the same time, the utilization rate of the copper–nickel smelting slag of this formula can reach 70%, reduce its pollution to the environment. |
format | Online Article Text |
id | pubmed-7844011 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-78440112021-01-29 A new expansion material used for roof-contacted filling based on smelting slag Na, Hua Lv, Guocheng Wang, Lijuan Liao, Libing Zhang, Dan Guo, Lijie Li, Wenchen Sci Rep Article The improper handling of smelting slag will seriously pollute the environment, and the unfilled roof of the goaf of the mine will threaten the safety of the mine. Expansion materials have attracted more and more attention because of their excellent properties. In this paper, copper-nickel smelting slag that has some active ingredients of gelling is used instead of traditional aggregate and some part of cement in order to reduce its pollution to the environment and its costs. For safety reasons, hydrogen peroxide was chosen as the foaming agent. Sodium silicate and hexadecyl trimethyl ammonium bromide (CTAB) are used as additives. Our results showed that after 28 days of curing, the material has better mechanical properties and the early compressive strength of the material was enhanced by sodium silicate. The efficiency of foaming was improved by CTAB. It also proves that copper–nickel smelting slag can be used in expansion material. At the same time, the utilization rate of the copper–nickel smelting slag of this formula can reach 70%, reduce its pollution to the environment. Nature Publishing Group UK 2021-01-28 /pmc/articles/PMC7844011/ /pubmed/33510244 http://dx.doi.org/10.1038/s41598-021-81891-4 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Na, Hua Lv, Guocheng Wang, Lijuan Liao, Libing Zhang, Dan Guo, Lijie Li, Wenchen A new expansion material used for roof-contacted filling based on smelting slag |
title | A new expansion material used for roof-contacted filling based on smelting slag |
title_full | A new expansion material used for roof-contacted filling based on smelting slag |
title_fullStr | A new expansion material used for roof-contacted filling based on smelting slag |
title_full_unstemmed | A new expansion material used for roof-contacted filling based on smelting slag |
title_short | A new expansion material used for roof-contacted filling based on smelting slag |
title_sort | new expansion material used for roof-contacted filling based on smelting slag |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7844011/ https://www.ncbi.nlm.nih.gov/pubmed/33510244 http://dx.doi.org/10.1038/s41598-021-81891-4 |
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