Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials
To comprehensively test and analyze the effects of three-dimensional printed polymer lattice (3DPPL) on the bending performance of cemented lithium feldspar tailings backfill (CLFTB) specimens, this study conducted three-point bending test on 3DPPL-reinforced CLFTB (3DPPL-RCLFTB) specimens prepared...
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| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S221450952500261X |
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| author | Ling Hu Buyu Zheng Daopei Zhu Zhiwei Yang Nanhui Huang |
| author_facet | Ling Hu Buyu Zheng Daopei Zhu Zhiwei Yang Nanhui Huang |
| author_sort | Ling Hu |
| collection | DOAJ |
| description | To comprehensively test and analyze the effects of three-dimensional printed polymer lattice (3DPPL) on the bending performance of cemented lithium feldspar tailings backfill (CLFTB) specimens, this study conducted three-point bending test on 3DPPL-reinforced CLFTB (3DPPL-RCLFTB) specimens prepared with different unit shapes: cube (CU), hexagonal prism (HE), octagon (OC) and materials: white resin (WR), black nylon (BN), transparent resin (TR). The results indicated that WR performed best in enhancing the strength of CLFTB, while TR was most effective in improving toughness, with OC was the optimal unit shape. The maximum strength and maximum deflection of 3DPPL-RCLFTB reached 5.961 MPa and 28.84 mm, respectively, representing increases of 2.75–3.74 times and 24.06–27.78 times compared to the control group (N-3DPPL-RCLFTB). All 3DPPL-RCLFTB specimens exhibited superior bending performance and ductility, with 3DPPL effectively prolonging the destruction process and significantly improving stability. The incorporation of 3DPPL transformed the destruction mode of CLFTB from a single crack destruction mode to a multiple crack destruction mode, shifting from brittle to ductile destruction. The maximum strain value on the surface of the 3DPPL-RCLFTB specimens was 36.343 %, with the TR-OC-3DPPL-RCLFTB showing the best multiple crack destruction mode. |
| format | Article |
| id | doaj-art-ce2d9024d8184b20b4a665f140405efd |
| institution | DOAJ |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-ce2d9024d8184b20b4a665f140405efd2025-08-20T02:47:27ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0446310.1016/j.cscm.2025.e04463Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materialsLing Hu0Buyu Zheng1Daopei Zhu2Zhiwei Yang3Nanhui Huang4Division of Urban Construction Engineering, Wenhua College, Wuhan 430074, ChinaDepartment of Civil Engineering, Tongji Zhejiang College, Jiaxing 314000, ChinaSchool of Software Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China; Corresponding authors.School of Software Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China; Corresponding authors.School of Software Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, ChinaTo comprehensively test and analyze the effects of three-dimensional printed polymer lattice (3DPPL) on the bending performance of cemented lithium feldspar tailings backfill (CLFTB) specimens, this study conducted three-point bending test on 3DPPL-reinforced CLFTB (3DPPL-RCLFTB) specimens prepared with different unit shapes: cube (CU), hexagonal prism (HE), octagon (OC) and materials: white resin (WR), black nylon (BN), transparent resin (TR). The results indicated that WR performed best in enhancing the strength of CLFTB, while TR was most effective in improving toughness, with OC was the optimal unit shape. The maximum strength and maximum deflection of 3DPPL-RCLFTB reached 5.961 MPa and 28.84 mm, respectively, representing increases of 2.75–3.74 times and 24.06–27.78 times compared to the control group (N-3DPPL-RCLFTB). All 3DPPL-RCLFTB specimens exhibited superior bending performance and ductility, with 3DPPL effectively prolonging the destruction process and significantly improving stability. The incorporation of 3DPPL transformed the destruction mode of CLFTB from a single crack destruction mode to a multiple crack destruction mode, shifting from brittle to ductile destruction. The maximum strain value on the surface of the 3DPPL-RCLFTB specimens was 36.343 %, with the TR-OC-3DPPL-RCLFTB showing the best multiple crack destruction mode.http://www.sciencedirect.com/science/article/pii/S221450952500261XCemented lithium feldspar tailings backfillPolymer latticesMaterials and unit shapeBending performanceDestruction mode |
| spellingShingle | Ling Hu Buyu Zheng Daopei Zhu Zhiwei Yang Nanhui Huang Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials Case Studies in Construction Materials Cemented lithium feldspar tailings backfill Polymer lattices Materials and unit shape Bending performance Destruction mode |
| title | Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials |
| title_full | Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials |
| title_fullStr | Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials |
| title_full_unstemmed | Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials |
| title_short | Enhancing bending performance of cemented lithium feldspar tailings backfill with 3D printing polymer lattices: Effects of unit shapes and materials |
| title_sort | enhancing bending performance of cemented lithium feldspar tailings backfill with 3d printing polymer lattices effects of unit shapes and materials |
| topic | Cemented lithium feldspar tailings backfill Polymer lattices Materials and unit shape Bending performance Destruction mode |
| url | http://www.sciencedirect.com/science/article/pii/S221450952500261X |
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