Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste
Strength and toughness, two important aspects of the durability of concrete structures, are dramatically influenced by the material’s nanotexture, but the question of how the building blocks of cement paste organize themselves to create this nanotexture is still being answered. Recent modelling effo...
| Hoofdauteurs: | , , , |
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| Gepubliceerd in: |
2021
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| Online toegang: | https://hdl.handle.net/1721.1/130028 |
| _version_ | 1826216425265561600 |
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| author | Petersen, Thomas Bazant, Martin Pellenq, Roland Ulm, Franz-Josef |
| author_facet | Petersen, Thomas Bazant, Martin Pellenq, Roland Ulm, Franz-Josef |
| author_sort | Petersen, Thomas |
| collection | MIT |
| description | Strength and toughness, two important aspects of the durability of concrete structures, are dramatically influenced by the material’s nanotexture, but the question of how the building blocks of cement paste organize themselves to create this nanotexture is still being answered. Recent modelling efforts by CSHub researchers demonstrated a convincing pathway. Upon mixing water with cement clinker, ions dissolve into the pore solution and precipitate out nanometer-sized grains of calcium-silicate-hydrates (C-S-H). These building blocks are the glue that binds sand and gravel together and the primary ingredient for concrete. The organization of these C-ˇS-ˇH grains drastically influences concrete’s mechanical performance. By better understanding which parameters influence this organization, we hope to create longer-lasting, more durable materials. |
| first_indexed | 2024-09-23T16:47:29Z |
| id | mit-1721.1/130028 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T16:47:29Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | mit-1721.1/1300282021-03-03T03:01:23Z Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste Petersen, Thomas Bazant, Martin Pellenq, Roland Ulm, Franz-Josef Poromechanics Cement C-S-H Strength and toughness, two important aspects of the durability of concrete structures, are dramatically influenced by the material’s nanotexture, but the question of how the building blocks of cement paste organize themselves to create this nanotexture is still being answered. Recent modelling efforts by CSHub researchers demonstrated a convincing pathway. Upon mixing water with cement clinker, ions dissolve into the pore solution and precipitate out nanometer-sized grains of calcium-silicate-hydrates (C-S-H). These building blocks are the glue that binds sand and gravel together and the primary ingredient for concrete. The organization of these C-ˇS-ˇH grains drastically influences concrete’s mechanical performance. By better understanding which parameters influence this organization, we hope to create longer-lasting, more durable materials. 2021-03-02T14:59:00Z 2021-03-02T14:59:00Z 2018-08 https://hdl.handle.net/1721.1/130028 MIT CSHub Research Brief; Volume 2018, Issue 7 application/pdf |
| spellingShingle | Poromechanics Cement C-S-H Petersen, Thomas Bazant, Martin Pellenq, Roland Ulm, Franz-Josef Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste |
| title | Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste |
| title_full | Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste |
| title_fullStr | Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste |
| title_full_unstemmed | Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste |
| title_short | Research Brief: A Reaction-Diffusion Model to Determine Mesoscale Patterns in Cement Paste |
| title_sort | research brief a reaction diffusion model to determine mesoscale patterns in cement paste |
| topic | Poromechanics Cement C-S-H |
| url | https://hdl.handle.net/1721.1/130028 |
| work_keys_str_mv | AT petersenthomas researchbriefareactiondiffusionmodeltodeterminemesoscalepatternsincementpaste AT bazantmartin researchbriefareactiondiffusionmodeltodeterminemesoscalepatternsincementpaste AT pellenqroland researchbriefareactiondiffusionmodeltodeterminemesoscalepatternsincementpaste AT ulmfranzjosef researchbriefareactiondiffusionmodeltodeterminemesoscalepatternsincementpaste |