Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material
The addition of a temperature-rising inhibitor (TRI) to aeolian sand paste materials (ASPM) to produce paste-like filling mining materials can solve multiple problems. First, it may alleviate the environmental problems caused by solid waste treatment in mines to achieve sustainable use of solid wast...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523008616 |
| _version_ | 1797454584997740544 |
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| author | Xiaoping Shao Jianbo Ning Renlong Tang Zhiyu Fang Bingchao Zhao Baowa Xu Chuang Tian Wei Wang Zhengchun Wang |
| author_facet | Xiaoping Shao Jianbo Ning Renlong Tang Zhiyu Fang Bingchao Zhao Baowa Xu Chuang Tian Wei Wang Zhengchun Wang |
| author_sort | Xiaoping Shao |
| collection | DOAJ |
| description | The addition of a temperature-rising inhibitor (TRI) to aeolian sand paste materials (ASPM) to produce paste-like filling mining materials can solve multiple problems. First, it may alleviate the environmental problems caused by solid waste treatment in mines to achieve sustainable use of solid waste. Second, It may solve the problem of rapid temperature rise in mines caused by the rapid heat release during filling body hydration. Therefore, this study explored the hydration of an ASPM with different TRI contents and its mechanical properties, setting time, and microstructure. The results show that at TRI contents of 0–1.0%, the peak heat-release rate of the ASPM is reduced by 16.0%, the early hydration heat release is reduced by 14.2%, and the delay of the heat-release peak is more prominent. TRI inhibits the hydration of ASPM primarily within 7 d, which reduces the early strength of the ASPM by a maximum of 43.4%. However, with the increase in age, the strength difference gradually decreases, and TRI even becomes beneficial for the development of strength in later stages. In addition, the high content of TRI has a significant retarding effect on ASPM hydration. The temperature rise test shows that TRI can reduce the temperature increase rate and delay the peak temperature increase rate, which can effectively solve the problem of concentrated heat release by backfill. This paper provides a theoretical basis for the application of TRIs in cemented paste backfill. |
| first_indexed | 2024-03-09T15:39:17Z |
| format | Article |
| id | doaj.art-bc8b64963d004eafaa35c34c9165a1c0 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-09T15:39:17Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-bc8b64963d004eafaa35c34c9165a1c02023-11-25T04:49:44ZengElsevierCase Studies in Construction Materials2214-50952023-12-0119e02680Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling materialXiaoping Shao0Jianbo Ning1Renlong Tang2Zhiyu Fang3Bingchao Zhao4Baowa Xu5Chuang Tian6Wei Wang7Zhengchun Wang8Energy School, Xi'an University of Science and Technology, Xi'an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi'an 710054, China; Corresponding author at: Energy School, Xi'an University of Science and Technology, Xi'an 710054, China.Energy School, Xi'an University of Science and Technology, Xi'an 710054, ChinaEnergy School, Xi'an University of Science and Technology, Xi'an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi'an 710054, ChinaEnergy School, Xi'an University of Science and Technology, Xi'an 710054, China; Corresponding author.Energy School, Xi'an University of Science and Technology, Xi'an 710054, China; Key Laboratory of Western Mines and Hazards Prevention, Ministry of Education of China, Xi'an 710054, ChinaEnergy School, Xi'an University of Science and Technology, Xi'an 710054, ChinaEnergy School, Xi'an University of Science and Technology, Xi'an 710054, ChinaEnergy School, Xi'an University of Science and Technology, Xi'an 710054, ChinaEnergy School, Xi'an University of Science and Technology, Xi'an 710054, ChinaThe addition of a temperature-rising inhibitor (TRI) to aeolian sand paste materials (ASPM) to produce paste-like filling mining materials can solve multiple problems. First, it may alleviate the environmental problems caused by solid waste treatment in mines to achieve sustainable use of solid waste. Second, It may solve the problem of rapid temperature rise in mines caused by the rapid heat release during filling body hydration. Therefore, this study explored the hydration of an ASPM with different TRI contents and its mechanical properties, setting time, and microstructure. The results show that at TRI contents of 0–1.0%, the peak heat-release rate of the ASPM is reduced by 16.0%, the early hydration heat release is reduced by 14.2%, and the delay of the heat-release peak is more prominent. TRI inhibits the hydration of ASPM primarily within 7 d, which reduces the early strength of the ASPM by a maximum of 43.4%. However, with the increase in age, the strength difference gradually decreases, and TRI even becomes beneficial for the development of strength in later stages. In addition, the high content of TRI has a significant retarding effect on ASPM hydration. The temperature rise test shows that TRI can reduce the temperature increase rate and delay the peak temperature increase rate, which can effectively solve the problem of concentrated heat release by backfill. This paper provides a theoretical basis for the application of TRIs in cemented paste backfill.http://www.sciencedirect.com/science/article/pii/S2214509523008616Temperature-rising inhibitorAeolian sand paste materialHydration heatCompressive strengthMicroscopic morphology |
| spellingShingle | Xiaoping Shao Jianbo Ning Renlong Tang Zhiyu Fang Bingchao Zhao Baowa Xu Chuang Tian Wei Wang Zhengchun Wang Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material Case Studies in Construction Materials Temperature-rising inhibitor Aeolian sand paste material Hydration heat Compressive strength Microscopic morphology |
| title | Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material |
| title_full | Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material |
| title_fullStr | Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material |
| title_full_unstemmed | Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material |
| title_short | Effect of temperature-rising inhibitor on the hydration and performance of cemented paste-filling material |
| title_sort | effect of temperature rising inhibitor on the hydration and performance of cemented paste filling material |
| topic | Temperature-rising inhibitor Aeolian sand paste material Hydration heat Compressive strength Microscopic morphology |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523008616 |
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