Post on 10-Jun-2018
Enhancing Concrete Formulations
for Additive Manufacturing
1
Introduction
2
Motivation
3
Project Progression
4
Performance Goals
5
Experimental Method
6
Technical Approach
σ σ ε
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Experimental Approach 8
Design of Experiments
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Prototype Fabrication
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Prototype Assembly
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Facilities
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Prototype Testing
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Zhou et al.
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ANSYS Fluent Simulation
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ANSYS Fluent Simulation (cont.)
● Discrete Phase Model (DPM) o Allows for multiple fluid and particulate phases
o Fluid phase (i.e. the cement) is modeled as a Newtonian
fluid
o Aggregate (sand) and entrained air bubbles both modeled
as inert particle injections
Sand - 500μm diameter
Air bubbles - 1mm diameter
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Results
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ANSYS Fluent Simulation
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Time (1/10 seconds)
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Prototype Results
Fiber Aggregate Results Sand Aggregate Results
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Prototype Results (cont.)
Different Mixing Times
Timeline
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Budget
21
Scale-Up Cost Analysis
22
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Current 3D Concrete Printers
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Future Work
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Questions?
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References
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