College - Author 1

College of Architecture and Environmental Design

Department - Author 1

Architectural Engineering Department

Degree Name - Author 1

BS in Architectural Engineering

College - Author 2

College of Architecture and Environmental Design

Department - Author 2

Architectural Engineering Department

Degree - Author 2

BS in Architectural Engineering

Date

3-2023

Primary Advisor

Cameron Hiromitsu Fredrickson, College of Architecture and Environmental Design, Architectural Engineering Department

Additional Advisors

Brent Nuttall, College of Architecture and Environmental Design, Architectural Engineering Department

Abstract/Summary

The goal of this research is to determine the structural parameters of the recycled plastic polypropylene when molded into bricks resembling CMU blocks. To accomplish this, three mechanisms had to be assembled: the shredder, the injector, and the 1x1 mold. A tensile and compression test were to be performed on the plastic brick, and the values would be used to compare the tensile and compressive strength of PP plastic bricks, as well as their modulus of elasticity and stress vs. Strain performance. These values would be analyzed to determine whether it would be feasible to build an entire plastic wall. Unfortunately, the injector machine’s rod, which is used to eject molten plastic into the mold in high pressure levels, bent, and the team was unable to construct a brick in time. The team, however, did complete each mechanism and performed troubleshooting to account for any unaccounted obstacles. A few design changes must be implemented on the injector machine to ensure the project’s success, and the mold must be tested, however before the injector broke, it ejected a few samples of melted plastic, which demonstrate the amount of progress that has been accomplished throughout the quarter.

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