Bond strength of 3D printed concrete
3D concrete printing is an innovative additive manufacturing process where the material is extruded through a nozzle to print structure layer-by-layer. In this paper, the authors investigate the possibility of improving the interface bond strength of this layer by layer construction technique. Ma...
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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/10356/88258 http://hdl.handle.net/10220/45685 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | 3D concrete printing is an innovative additive manufacturing process where the
material is extruded through a nozzle to print structure layer-by-layer. In this paper, the authors
investigate the possibility of improving the interface bond strength of this layer by layer
construction technique. Many factors affect the bond strength between the two layers such as time
gap, surface contact area and surface moisture. The nozzle requires a specific amount of time for it
to complete one cycle (time gap). Four different time-gap on the bond strength of individual layer
was studied and is found that the bond of a shorter time gap yields better strength. A proposed
method to improve the strength of the bond at the interface is to increase the contact surface area.
Increasing the contact surface area of the layers could improve the bond strength. |
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