Develop cementitious materials incorporating fly ash cenophere for spray-based 3D printing
Developments of 3D printing in building and construction have attracted a lot of research focus during recent years. While the mainstream 3D printing of cementitious material adopts extrusion method, the limitation in vertical applications such as overhanging structures calls for further investig...
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| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/88268 http://hdl.handle.net/10220/45695 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Developments of 3D printing in building and construction have attracted a lot of
research focus during recent years. While the mainstream 3D printing of cementitious material
adopts extrusion method, the limitation in vertical applications such as overhanging structures calls
for further investigation of printing method with suitable materials. In this paper, spray-based 3D
printing of cementitious material is proposed. The influence of incorporating fly ash cenosphere is
studied for spray-based 3D printable cementitious material development. Rheological tests and
robotic arm-controlled spray tests illustrate that the incorporation of fly ash cenosphere
significantly reduces the spray splash, improves sprayed material distribution of sprayed material
while impairs the pumpability of the material. |
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