Development of locally available sandwich composite for sustainable lightweight structures
Aerated slurry-infiltrated chicken mesh was evaluated as a lightweight and structurally resilient material for building construction. Aerated slurry with relatively low structural qualities was shown to perform favorably when used as a matrix with chicken mesh reinforcement in structural applications. The high specific surface area of chicken mesh and the close spacing of its wires (when used at 2-4% volume fraction) effectively enhance the mechanical performance and dimensional stability of the aerated slurry. The chicken mesh structural behavior also benefits significantly from embedment in the aerated slurry, which mitigates the reorientation tendency of the chicken mesh wires under tension. This effect enables mobilization of the tensile load-carrying capacity of the wires in chicken mesh at structurally viable deformations. A comprehensive experimental program was undertaken at materials and structures levels in order to develop aerated slurry-infiltrated chicken mesh materials and structural systems with a desired balance of strength, ductility and hysteretic energy dissipation capacity. The bulk density of the aerated slurry and the chicken mesh volume fraction were some key variables in the design of the new (composite) building material. With proper selection of these variables, the synergistic actions of the aerated slurry and the chicken mesh in the context of the composite material were confirmed. Empirical models were developed for the mechanical performance of this composite material. In the future, the structural performance of this composite material may be verified by constructing a full-scale building system and conducting shaking table tests.
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- In Collections
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Electronic Theses & Dissertations
- Copyright Status
- In Copyright
- Material Type
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Theses
- Authors
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Al malkawi, Areej Thabit
- Thesis Advisors
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Voice, Thomas
- Committee Members
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Buch, Neeraj
Colbry, Kathleen
Wolff, Thomas
- Date
- 2020
- Program of Study
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Civil Engineering - Doctor of Philosophy
- Degree Level
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Doctoral
- Language
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English
- Pages
- xvii, 186 pages
- ISBN
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9798662432307
- Permalink
- https://doi.org/doi:10.25335/cx1q-k166