About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Process Development
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Presentation Title |
A Modular Lightweight Additive Manufacturing System for Cementitious Materials with Diverse Aggregate Sizes |
Author(s) |
Bahram Asiabanpour, Mehrab Nodehi, Liam Omer, Togay Ozbakkaloglu |
On-Site Speaker (Planned) |
Mehrab Nodehi |
Abstract Scope |
In recent years several large-scale commercial AM-based construction machines have been introduced. However, proper lab-scale machines for training experts in automated construction and research-based activities such as material optimizations for the civil and structural engineers are not available. The only available small-scale apparatus in AM-based construction is limited to a minimal list of materials and properties. Those machines are not capable of fabricating samples from cementitious materials with a variety of aggregate sizes. This paper introduces a low-cost, modular AM-based construction system capable of extruding a wide variety of cementitious materials with diverse aggregate sizes. The system is capable of continuous extrusion with a variety of cross-section forms. As a proof-of-concept, the developed system is utilized to fabricate cement mortar with larger aggregate sizes with different materials mixture ratios. Mechanical and rheological properties of the conventional versus that of additively printed samples are also tested and compared. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |