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- Publisher Website: 10.1016/j.cemconcomp.2023.105066
- Scopus: eid_2-s2.0-85152604358
- WOS: WOS:000980439300001
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Article: Effects of fiber volume fraction, fiber length, water-binder ratio, and nanoclay addition on the 3D printability of strain-hardening cementitious composites (SHCC)
| Title | Effects of fiber volume fraction, fiber length, water-binder ratio, and nanoclay addition on the 3D printability of strain-hardening cementitious composites (SHCC) |
|---|---|
| Authors | |
| Keywords | 3D concrete printing Contact percolation packing fraction Fiber agglomerates Fiber deflection Flexible fibers SHCC/ECC |
| Issue Date | 5-Apr-2023 |
| Publisher | Elsevier |
| Citation | Cement and Concrete Composites, 2023, v. 139 How to Cite? |
| Abstract | Strain-Hardening Cementitious Composites (SHCC) exhibit superior mechanical performance and show potential in 3D printing applications. However, the formation of fiber agglomerates causes significant challenges during pumping and 3D printing. This study explores the 3D printability of SHCC, using a progressive cavity pump. Various situations are found: Some SHCC mixtures could be 3D printed smoothly with a continuous and non-fractured filament; Some show fractured filaments; Some cause the pump automatically stopped. For these failed extrusion cases, fiber agglomerates are found in the nozzle resulting in fractured filaments, or in the pump screw resulting in automatic cessation of the pump. Effects of fiber volume fraction, fiber length, water-binder ratio, and nanoclay addition on the 3D printability of SHCC are explored. Analysis based on the contact percolation packing fraction of flexible fibers is performed to explore the formation of fiber agglomerates and its impact on 3D printability. The significance of fiber deflection is also highlighted. |
| Persistent Identifier | http://hdl.handle.net/10722/341664 |
| ISSN | 2023 Impact Factor: 10.8 2023 SCImago Journal Rankings: 3.650 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Xu, Nuoyan | - |
| dc.contributor.author | Qian, Ye | - |
| dc.date.accessioned | 2024-03-20T06:58:07Z | - |
| dc.date.available | 2024-03-20T06:58:07Z | - |
| dc.date.issued | 2023-04-05 | - |
| dc.identifier.citation | Cement and Concrete Composites, 2023, v. 139 | - |
| dc.identifier.issn | 0958-9465 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/341664 | - |
| dc.description.abstract | <p>Strain-Hardening <a href="https://www.sciencedirect.com/topics/engineering/cementitious-composite" title="Learn more about Cementitious Composites from ScienceDirect's AI-generated Topic Pages">Cementitious Composites</a> (SHCC) exhibit superior mechanical performance and show potential in <a href="https://www.sciencedirect.com/topics/engineering/3d-printing" title="Learn more about 3D printing from ScienceDirect's AI-generated Topic Pages">3D printing</a> applications. However, the formation of fiber agglomerates causes significant challenges during pumping and <a href="https://www.sciencedirect.com/topics/materials-science/three-dimensional-printing" title="Learn more about 3D printing from ScienceDirect's AI-generated Topic Pages">3D printing</a>. This study explores the 3D printability of SHCC, using a <a href="https://www.sciencedirect.com/topics/engineering/progressive-cavity" title="Learn more about progressive cavity from ScienceDirect's AI-generated Topic Pages">progressive cavity</a> pump. Various situations are found: Some SHCC mixtures could be 3D printed smoothly with a continuous and non-fractured filament; Some show fractured filaments; Some cause the pump automatically stopped. For these failed extrusion cases, fiber agglomerates are found in the nozzle resulting in fractured filaments, or in the pump screw resulting in automatic cessation of the pump. Effects of <a href="https://www.sciencedirect.com/topics/engineering/fiber-volume-fraction" title="Learn more about fiber volume fraction from ScienceDirect's AI-generated Topic Pages">fiber volume fraction</a>, <a href="https://www.sciencedirect.com/topics/engineering/fibre-length" title="Learn more about fiber length from ScienceDirect's AI-generated Topic Pages">fiber length</a>, water-binder ratio, and <a href="https://www.sciencedirect.com/topics/engineering/nanoclays" title="Learn more about nanoclay from ScienceDirect's AI-generated Topic Pages">nanoclay</a> addition on the 3D printability of SHCC are explored. Analysis based on the contact <a href="https://www.sciencedirect.com/topics/materials-science/percolation" title="Learn more about percolation from ScienceDirect's AI-generated Topic Pages">percolation</a> packing fraction of flexible fibers is performed to explore the formation of fiber agglomerates and its impact on 3D printability. The significance of fiber deflection is also highlighted.<br></p> | - |
| dc.language | eng | - |
| dc.publisher | Elsevier | - |
| dc.relation.ispartof | Cement and Concrete Composites | - |
| dc.subject | 3D concrete printing | - |
| dc.subject | Contact percolation packing fraction | - |
| dc.subject | Fiber agglomerates | - |
| dc.subject | Fiber deflection | - |
| dc.subject | Flexible fibers | - |
| dc.subject | SHCC/ECC | - |
| dc.title | Effects of fiber volume fraction, fiber length, water-binder ratio, and nanoclay addition on the 3D printability of strain-hardening cementitious composites (SHCC) | - |
| dc.type | Article | - |
| dc.identifier.doi | 10.1016/j.cemconcomp.2023.105066 | - |
| dc.identifier.scopus | eid_2-s2.0-85152604358 | - |
| dc.identifier.volume | 139 | - |
| dc.identifier.eissn | 1873-393X | - |
| dc.identifier.isi | WOS:000980439300001 | - |
| dc.identifier.issnl | 0958-9465 | - |