Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete
Modified concrete was prepared by adding different amounts of iron and aluminium slag into mortar. Compression tests, computed tomography (CT) scans and electron microscope scans were carried out to investigate the mechanical properties and fine structural characteristics of the ferric-aluminum slag...
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| Format: | Article |
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Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences
2025-06-01
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| Series: | Kuangchan zonghe liyong |
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| Online Access: | http://www.kczhly.com/en/article/doi/10.12476/kczhly.202209220608 |
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| author | Yunbing LIU Fei WU |
| author_facet | Yunbing LIU Fei WU |
| author_sort | Yunbing LIU |
| collection | DOAJ |
| description | Modified concrete was prepared by adding different amounts of iron and aluminium slag into mortar. Compression tests, computed tomography (CT) scans and electron microscope scans were carried out to investigate the mechanical properties and fine structural characteristics of the ferric-aluminum slag doped concrete. The results showed that the compressive strength and modulus of elasticity of the concrete specimens showed an increasing and then decreasing trend with the increase in the amount of ferric-aluminum slag, and the optimum amount of Fe-Al slag was determined to be 15%. The modifying effect of ferric-aluminum slag promoted the secondary hydration reaction of cement mortar, resulting in a reduction of Ca(OH)2 content and an increase of hydrated calcium silicate (C-S-H) content in the concrete, which eventually caused the closure of cracks between the aggregates and improved the overall mechanical properties of the material. |
| format | Article |
| id | doaj-art-78ee863f300d41299a414bc9174227da |
| institution | Kabale University |
| issn | 1000-6532 |
| language | zho |
| publishDate | 2025-06-01 |
| publisher | Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences |
| record_format | Article |
| series | Kuangchan zonghe liyong |
| spelling | doaj-art-78ee863f300d41299a414bc9174227da2025-08-20T03:30:03ZzhoInstitute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesKuangchan zonghe liyong1000-65322025-06-01463515610.12476/kczhly.2022092206082025-02liuyunbingCompression Characteristics and Microstructure of Ferric-aluminum Slag Modified ConcreteYunbing LIU0Fei WU1School of Architecture and Engineering, Luzhou Vocational & Technical College, Luzhou, Sichuan 646000, ChinaNational Engineering Research Center for Green Recycling of Strategic Metal Resources, Beijing 100190, ChinaModified concrete was prepared by adding different amounts of iron and aluminium slag into mortar. Compression tests, computed tomography (CT) scans and electron microscope scans were carried out to investigate the mechanical properties and fine structural characteristics of the ferric-aluminum slag doped concrete. The results showed that the compressive strength and modulus of elasticity of the concrete specimens showed an increasing and then decreasing trend with the increase in the amount of ferric-aluminum slag, and the optimum amount of Fe-Al slag was determined to be 15%. The modifying effect of ferric-aluminum slag promoted the secondary hydration reaction of cement mortar, resulting in a reduction of Ca(OH)2 content and an increase of hydrated calcium silicate (C-S-H) content in the concrete, which eventually caused the closure of cracks between the aggregates and improved the overall mechanical properties of the material.http://www.kczhly.com/en/article/doi/10.12476/kczhly.202209220608concreteferric-aluminum slagmicrostructurecompression propertiesmicrostructural mechanism |
| spellingShingle | Yunbing LIU Fei WU Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete Kuangchan zonghe liyong concrete ferric-aluminum slag microstructure compression properties microstructural mechanism |
| title | Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete |
| title_full | Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete |
| title_fullStr | Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete |
| title_full_unstemmed | Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete |
| title_short | Compression Characteristics and Microstructure of Ferric-aluminum Slag Modified Concrete |
| title_sort | compression characteristics and microstructure of ferric aluminum slag modified concrete |
| topic | concrete ferric-aluminum slag microstructure compression properties microstructural mechanism |
| url | http://www.kczhly.com/en/article/doi/10.12476/kczhly.202209220608 |
| work_keys_str_mv | AT yunbingliu compressioncharacteristicsandmicrostructureofferricaluminumslagmodifiedconcrete AT feiwu compressioncharacteristicsandmicrostructureofferricaluminumslagmodifiedconcrete |