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Hybrid Soluble and Insoluble 3D Printed Formwork.
紀錄類型:
書目-語言資料,印刷品 : Monograph/item
正題名/作者:
Hybrid Soluble and Insoluble 3D Printed Formwork./
作者:
Hunt, Erin Linsey.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:
43 p.
附註:
Source: Masters Abstracts International, Volume: 83-01.
Contained By:
Masters Abstracts International83-01.
標題:
Mechanical engineering. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28541086
ISBN:
9798516912979
Hybrid Soluble and Insoluble 3D Printed Formwork.
Hunt, Erin Linsey.
Hybrid Soluble and Insoluble 3D Printed Formwork.
- Ann Arbor : ProQuest Dissertations & Theses, 2021 - 43 p.
Source: Masters Abstracts International, Volume: 83-01.
Thesis (M.Des.)--Harvard University, 2021.
This item must not be sold to any third party vendors.
This thesis investigates the potentials of hybrid 3D printed concrete formwork. Water-soluble Polyvinyl Alcohol (PVA) formwork allows for the creation of intricate forms that would be difficult, if not impossible, to create using standard formwork methods. Informed by finite element analysis, the PVA formwork allows for a gradient of variable porosities across a series of concrete units (blocks) in relation to structural loading and other possible design intentions. The goal is to optimize material use while addressing pathways for reusable formwork, reduced waste, and reduced embodied carbon. A series of blocks are fabricated for performance testing and a proof-of-concept quarter vault structure. The performance testing seeks to assess the blocks' strength without reinforcement, and additional investigations explore the integration of macro fiber reinforcing to increase stability. The PVA formwork allows for designed anisotropy. When fibers are mixed into concrete, their orientations are typically random making them less effective. PVA formwork could allow for new hybrid formworks that would enable intentional placement of reinforcing fibers perpendicular to the compression force, potentially increasing their utility. The vault case study revealed that the porous vault structure uses seventy-five percent less material than a solid block structure with the same structural strength. It has been found that the PVA can be conserved through dehydration which could allow the material to be reused in a cyclical system.
ISBN: 9798516912979Subjects--Topical Terms:
557493
Mechanical engineering.
Subjects--Index Terms:
3D printing
Hybrid Soluble and Insoluble 3D Printed Formwork.
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This thesis investigates the potentials of hybrid 3D printed concrete formwork. Water-soluble Polyvinyl Alcohol (PVA) formwork allows for the creation of intricate forms that would be difficult, if not impossible, to create using standard formwork methods. Informed by finite element analysis, the PVA formwork allows for a gradient of variable porosities across a series of concrete units (blocks) in relation to structural loading and other possible design intentions. The goal is to optimize material use while addressing pathways for reusable formwork, reduced waste, and reduced embodied carbon. A series of blocks are fabricated for performance testing and a proof-of-concept quarter vault structure. The performance testing seeks to assess the blocks' strength without reinforcement, and additional investigations explore the integration of macro fiber reinforcing to increase stability. The PVA formwork allows for designed anisotropy. When fibers are mixed into concrete, their orientations are typically random making them less effective. PVA formwork could allow for new hybrid formworks that would enable intentional placement of reinforcing fibers perpendicular to the compression force, potentially increasing their utility. The vault case study revealed that the porous vault structure uses seventy-five percent less material than a solid block structure with the same structural strength. It has been found that the PVA can be conserved through dehydration which could allow the material to be reused in a cyclical system.
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http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28541086
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