Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum
The hydration characteristics, performance, and economic feasibility of inorganic cementitious materials prepared using circulating fluidized bed fly ash (FA), carbide slag (CS), and flue-gas-desulfurization gypsum (FGDG) are investigated, focusing particularly on FA-CS binary and FA-CS-FGDG ternary...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422016969 |
| _version_ | 1828115967741263872 |
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| author | Dedan Duan Hongqiang Liao Fang Wei Jiana Wang Jianfang Wu Fangqin Cheng |
| author_facet | Dedan Duan Hongqiang Liao Fang Wei Jiana Wang Jianfang Wu Fangqin Cheng |
| author_sort | Dedan Duan |
| collection | DOAJ |
| description | The hydration characteristics, performance, and economic feasibility of inorganic cementitious materials prepared using circulating fluidized bed fly ash (FA), carbide slag (CS), and flue-gas-desulfurization gypsum (FGDG) are investigated, focusing particularly on FA-CS binary and FA-CS-FGDG ternary cementitious systems. Experimental results show that the compressive strength of the binary system is less than that of the ternary one. The ternary cementitious material exhibits strong synergistic effects, as the 28 days compressive strength of the ternary system can reach 6.35 MPa, suggesting that it has good prospects for practical application. A dry-mixed mortar using the material has been manufactured and tested in a pilot project; it meets Chinese government quality standards and reduces cost and carbon emissions relative to traditional mortar. The 28 days compressive strength of dry mix mortar can reach 13.1 MPa, the production cost of solid waste-based dry-mixed mortar was reduced by approximately 48.8%, and the carbon dioxide emission reduction ratio was 82.9%. |
| first_indexed | 2024-04-11T12:49:12Z |
| format | Article |
| id | doaj.art-81d47878ecf242589b108f3863c8cf6a |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T12:49:12Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-81d47878ecf242589b108f3863c8cf6a2022-12-22T04:23:15ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012136363649Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsumDedan Duan0Hongqiang Liao1Fang Wei2Jiana Wang3Jianfang Wu4Fangqin Cheng5Institute of Resources and Environmental Engineering, Shanxi University, National Key Laboratory of Coal Waste Resource Efficient Utilization Technology for Environmental Protection, Shanxi Provincial Key Laboratory of Coal Power Pollution Control and Waste Resource Utilization, Taiyuan 030006, ChinaInstitute of Resources and Environmental Engineering, Shanxi University, National Key Laboratory of Coal Waste Resource Efficient Utilization Technology for Environmental Protection, Shanxi Provincial Key Laboratory of Coal Power Pollution Control and Waste Resource Utilization, Taiyuan 030006, China; Corresponding author.Institute of Resources and Environmental Engineering, Shanxi University, National Key Laboratory of Coal Waste Resource Efficient Utilization Technology for Environmental Protection, Shanxi Provincial Key Laboratory of Coal Power Pollution Control and Waste Resource Utilization, Taiyuan 030006, ChinaProductivity Promotion Center of Xiangyuan County, Xiangyuan, Changzhi City, Shanxi Province, 046200, ChinaInstitute of Resources and Environmental Engineering, Shanxi University, National Key Laboratory of Coal Waste Resource Efficient Utilization Technology for Environmental Protection, Shanxi Provincial Key Laboratory of Coal Power Pollution Control and Waste Resource Utilization, Taiyuan 030006, ChinaInstitute of Resources and Environmental Engineering, Shanxi University, National Key Laboratory of Coal Waste Resource Efficient Utilization Technology for Environmental Protection, Shanxi Provincial Key Laboratory of Coal Power Pollution Control and Waste Resource Utilization, Taiyuan 030006, China; Corresponding author.The hydration characteristics, performance, and economic feasibility of inorganic cementitious materials prepared using circulating fluidized bed fly ash (FA), carbide slag (CS), and flue-gas-desulfurization gypsum (FGDG) are investigated, focusing particularly on FA-CS binary and FA-CS-FGDG ternary cementitious systems. Experimental results show that the compressive strength of the binary system is less than that of the ternary one. The ternary cementitious material exhibits strong synergistic effects, as the 28 days compressive strength of the ternary system can reach 6.35 MPa, suggesting that it has good prospects for practical application. A dry-mixed mortar using the material has been manufactured and tested in a pilot project; it meets Chinese government quality standards and reduces cost and carbon emissions relative to traditional mortar. The 28 days compressive strength of dry mix mortar can reach 13.1 MPa, the production cost of solid waste-based dry-mixed mortar was reduced by approximately 48.8%, and the carbon dioxide emission reduction ratio was 82.9%.http://www.sciencedirect.com/science/article/pii/S2238785422016969Circulating fluidized bed fly ashCalcium carbide slagDesulfurized gypsumHydration characteristicsCementitious materials |
| spellingShingle | Dedan Duan Hongqiang Liao Fang Wei Jiana Wang Jianfang Wu Fangqin Cheng Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum Journal of Materials Research and Technology Circulating fluidized bed fly ash Calcium carbide slag Desulfurized gypsum Hydration characteristics Cementitious materials |
| title | Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum |
| title_full | Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum |
| title_fullStr | Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum |
| title_full_unstemmed | Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum |
| title_short | Solid waste-based dry-mix mortar using fly ash, carbide slag, and flue gas desulfurization gypsum |
| title_sort | solid waste based dry mix mortar using fly ash carbide slag and flue gas desulfurization gypsum |
| topic | Circulating fluidized bed fly ash Calcium carbide slag Desulfurized gypsum Hydration characteristics Cementitious materials |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422016969 |
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