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Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties
Due to the rapid growth of the electric power system, the silicone rubber composite insulator is so widely employed around the world. However, the aging damage and decommission of it inevitably generates plenty of waste silicone rubber. It takes up large amounts of land for non-degradation, which is...
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/PMC6747845/ https://www.ncbi.nlm.nih.gov/pubmed/31480249 http://dx.doi.org/10.3390/ma12172796 |
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author | Qin, Gang Shen, Zhongshuo Yu, Yongqiang Fan, Lidan Cao, Hongwei Yin, Chaowei |
author_facet | Qin, Gang Shen, Zhongshuo Yu, Yongqiang Fan, Lidan Cao, Hongwei Yin, Chaowei |
author_sort | Qin, Gang |
collection | PubMed |
description | Due to the rapid growth of the electric power system, the silicone rubber composite insulator is so widely employed around the world. However, the aging damage and decommission of it inevitably generates plenty of waste silicone rubber. It takes up large amounts of land for non-degradation, which is becoming a serious environmental issue. In this paper, the effort has been made to reuse the silicone rubber of composite insulator by peeling, breaking and adding it into the cement mortar to partly replace river sand by 5%, 10%, 15%, 20% and 30% in volume. Moreover, the surface modification of silicone rubber particles with H(2)O(2) and KOH is explored to improve hydrophilicity. The mechanical strength of silicone rubber mortar and modified silicone rubber mortar are measured in detail, and the effects of particle size, content and modification of silicone rubber on the properties of mortar are investigated. This study shows that at least a 5% addition of silicone rubber can reduce the strengths, while the 15% addition is obviously favorable for increasing the toughness. Furthermore, the mortar strength gets promoted due to the surface modification. Lastly, the superior thermal insulation and noise reduction of the mortar are obtained as the addition of silicone rubber particles, and an equation between dry apparent density and thermal conductivity of mortar has been developed. |
format | Online Article Text |
id | pubmed-6747845 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-67478452019-09-27 Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties Qin, Gang Shen, Zhongshuo Yu, Yongqiang Fan, Lidan Cao, Hongwei Yin, Chaowei Materials (Basel) Article Due to the rapid growth of the electric power system, the silicone rubber composite insulator is so widely employed around the world. However, the aging damage and decommission of it inevitably generates plenty of waste silicone rubber. It takes up large amounts of land for non-degradation, which is becoming a serious environmental issue. In this paper, the effort has been made to reuse the silicone rubber of composite insulator by peeling, breaking and adding it into the cement mortar to partly replace river sand by 5%, 10%, 15%, 20% and 30% in volume. Moreover, the surface modification of silicone rubber particles with H(2)O(2) and KOH is explored to improve hydrophilicity. The mechanical strength of silicone rubber mortar and modified silicone rubber mortar are measured in detail, and the effects of particle size, content and modification of silicone rubber on the properties of mortar are investigated. This study shows that at least a 5% addition of silicone rubber can reduce the strengths, while the 15% addition is obviously favorable for increasing the toughness. Furthermore, the mortar strength gets promoted due to the surface modification. Lastly, the superior thermal insulation and noise reduction of the mortar are obtained as the addition of silicone rubber particles, and an equation between dry apparent density and thermal conductivity of mortar has been developed. MDPI 2019-08-30 /pmc/articles/PMC6747845/ /pubmed/31480249 http://dx.doi.org/10.3390/ma12172796 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 Qin, Gang Shen, Zhongshuo Yu, Yongqiang Fan, Lidan Cao, Hongwei Yin, Chaowei Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties |
title | Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties |
title_full | Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties |
title_fullStr | Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties |
title_full_unstemmed | Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties |
title_short | Effect of Silicone Rubber of a Waste Composite Insulator on Cement Mortar Properties |
title_sort | effect of silicone rubber of a waste composite insulator on cement mortar properties |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6747845/ https://www.ncbi.nlm.nih.gov/pubmed/31480249 http://dx.doi.org/10.3390/ma12172796 |
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