Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste
For the first time, tricalcium silicate (C3S) and an aqueous solution were mixed and allowed to hydrate in the microgravity environment aboard the International Space Station (ISS). The research hypothesis states that minimizing gravity-driven transport phenomena, such as buoyancy, sedimentation, an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-04-01
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| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/article/10.3389/fmats.2019.00083/full |
| _version_ | 1811219314749997056 |
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| author | Juliana Moraes Neves Peter J. Collins Ryan P. Wilkerson Richard N. Grugel Aleksandra Radlińska |
| author_facet | Juliana Moraes Neves Peter J. Collins Ryan P. Wilkerson Richard N. Grugel Aleksandra Radlińska |
| author_sort | Juliana Moraes Neves |
| collection | DOAJ |
| description | For the first time, tricalcium silicate (C3S) and an aqueous solution were mixed and allowed to hydrate in the microgravity environment aboard the International Space Station (ISS). The research hypothesis states that minimizing gravity-driven transport phenomena, such as buoyancy, sedimentation, and thermosolutal convection ensures diffusion-controlled crystal growth and, consequently, lead to unique microstructures. Results from SEM micrographs, image analysis, mercury intrusion porosimetry, thermogravimetry, and x-ray diffraction revealed that the primary differences in μg hydrated C3S paste are increased porosity and a lower aspect ratio of portlandite crystals, likely due to a more uniform phase distribution. Relevant observations led by the presence or absence of gravity, including bleeding effect, density, and crystallography are also presented and discussed. |
| first_indexed | 2024-04-12T07:24:14Z |
| format | Article |
| id | doaj.art-cfeee56287054ff38600f4ab128d4107 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-12T07:24:14Z |
| publishDate | 2019-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-cfeee56287054ff38600f4ab128d41072022-12-22T03:42:14ZengFrontiers Media S.A.Frontiers in Materials2296-80162019-04-01610.3389/fmats.2019.00083449212Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) PasteJuliana Moraes Neves0Peter J. Collins1Ryan P. Wilkerson2Richard N. Grugel3Aleksandra Radlińska4Department of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA, United StatesDepartment of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA, United StatesMarshall Space Flight Center-NASA, Huntsville, AL, United StatesMarshall Space Flight Center-NASA, Huntsville, AL, United StatesDepartment of Civil and Environmental Engineering, The Pennsylvania State University, University Park, PA, United StatesFor the first time, tricalcium silicate (C3S) and an aqueous solution were mixed and allowed to hydrate in the microgravity environment aboard the International Space Station (ISS). The research hypothesis states that minimizing gravity-driven transport phenomena, such as buoyancy, sedimentation, and thermosolutal convection ensures diffusion-controlled crystal growth and, consequently, lead to unique microstructures. Results from SEM micrographs, image analysis, mercury intrusion porosimetry, thermogravimetry, and x-ray diffraction revealed that the primary differences in μg hydrated C3S paste are increased porosity and a lower aspect ratio of portlandite crystals, likely due to a more uniform phase distribution. Relevant observations led by the presence or absence of gravity, including bleeding effect, density, and crystallography are also presented and discussed.https://www.frontiersin.org/article/10.3389/fmats.2019.00083/fullmicrogravityC3S hydrationmicrostructureporosityportlandite CHsedimentation |
| spellingShingle | Juliana Moraes Neves Peter J. Collins Ryan P. Wilkerson Richard N. Grugel Aleksandra Radlińska Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste Frontiers in Materials microgravity C3S hydration microstructure porosity portlandite CH sedimentation |
| title | Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste |
| title_full | Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste |
| title_fullStr | Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste |
| title_full_unstemmed | Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste |
| title_short | Microgravity Effect on Microstructural Development of Tri-calcium Silicate (C3S) Paste |
| title_sort | microgravity effect on microstructural development of tri calcium silicate c3s paste |
| topic | microgravity C3S hydration microstructure porosity portlandite CH sedimentation |
| url | https://www.frontiersin.org/article/10.3389/fmats.2019.00083/full |
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