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Hybrid Soluble and Insoluble 3D Printed Formwork.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Hybrid Soluble and Insoluble 3D Printed Formwork./
Author:	Hunt, Erin Linsey.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	43 p.
Notes:	Source: Masters Abstracts International, Volume: 83-01.
Contained By:	Masters Abstracts International83-01.
Subject:	Design. -
Online resource:	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:

595500
Design.
Subjects--Index Terms:

3D printing

Hybrid Soluble and Insoluble 3D Printed Formwork.
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260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 43 p.
500 $a Source: Masters Abstracts International, Volume: 83-01.
500 $a Advisor: Grinham, Jonathan L.
502 $a Thesis (M.Des.)--Harvard University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a 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.
590 $a School code: 0084.
650 4 $a Design. $3 595500
650 4 $a Materials science. $3 557839
650 4 $a Civil engineering. $3 561339
650 4 $a Mechanical engineering. $3 557493
653 $a 3D printing
653 $a Additive manufacturing
653 $a Computational design
653 $a Concrete fabrication
653 $a Digital fabrication
653 $a Polyvinyl Alcohol
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690 $a 0543
690 $a 0794
690 $a 0548
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