New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering
Abstract Early-age hydration kinetics of Portland cement with nano-additives such as nano-silica (NS) was examined using quasielastic neutron scattering (QENS). Cement pastes with different ratios of Portland cement to NS were prepared. The concentration of the NS played a major role...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Springer US
2021
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| Online Access: | https://hdl.handle.net/1721.1/131904 |
| _version_ | 1811085070145945600 |
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| author | Kupwade-Patil, Kunal Bumajdad, Ali Brown, Craig M Tyagi, Madhusudan Butch, Nicholas P Jamsheer, Abdullah F Büyüköztürk, Oral |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering. Laboratory for Infrastructure Science and Sustainability |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering. Laboratory for Infrastructure Science and Sustainability Kupwade-Patil, Kunal Bumajdad, Ali Brown, Craig M Tyagi, Madhusudan Butch, Nicholas P Jamsheer, Abdullah F Büyüköztürk, Oral |
| author_sort | Kupwade-Patil, Kunal |
| collection | MIT |
| description | Abstract
Early-age hydration kinetics of Portland cement with nano-additives such as nano-silica (NS) was examined using quasielastic neutron scattering (QENS). Cement pastes with different ratios of Portland cement to NS were prepared. The concentration of the NS played a major role in controlling the free and bound water during the hydration of the cement paste. Additionally, the effects of metakaolin (MK) with NS in Portland cements revealed that MK acts as a retarder by decreasing the bounding water capacity during the early age of hydration. An increase in the concentration of NS affected the degree of hydration by reducing the amount of free and mobile water in the gel pores when compared to Portland cement paste. Here, we show that the concentration of NS governs the early-age hydration process in Portland cements. |
| first_indexed | 2024-09-23T13:02:27Z |
| format | Article |
| id | mit-1721.1/131904 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:02:27Z |
| publishDate | 2021 |
| publisher | Springer US |
| record_format | dspace |
| spelling | mit-1721.1/1319042023-02-22T17:19:33Z New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering Kupwade-Patil, Kunal Bumajdad, Ali Brown, Craig M Tyagi, Madhusudan Butch, Nicholas P Jamsheer, Abdullah F Büyüköztürk, Oral Massachusetts Institute of Technology. Department of Civil and Environmental Engineering. Laboratory for Infrastructure Science and Sustainability Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Abstract Early-age hydration kinetics of Portland cement with nano-additives such as nano-silica (NS) was examined using quasielastic neutron scattering (QENS). Cement pastes with different ratios of Portland cement to NS were prepared. The concentration of the NS played a major role in controlling the free and bound water during the hydration of the cement paste. Additionally, the effects of metakaolin (MK) with NS in Portland cements revealed that MK acts as a retarder by decreasing the bounding water capacity during the early age of hydration. An increase in the concentration of NS affected the degree of hydration by reducing the amount of free and mobile water in the gel pores when compared to Portland cement paste. Here, we show that the concentration of NS governs the early-age hydration process in Portland cements. 2021-09-20T17:30:52Z 2021-09-20T17:30:52Z 2018-12-07 2020-09-24T21:32:09Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131904 en https://doi.org/10.1007/s10853-018-03212-x Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ Springer Science+Business Media, LLC, part of Springer Nature application/pdf Springer US Springer US |
| spellingShingle | Kupwade-Patil, Kunal Bumajdad, Ali Brown, Craig M Tyagi, Madhusudan Butch, Nicholas P Jamsheer, Abdullah F Büyüköztürk, Oral New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering |
| title | New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering |
| title_full | New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering |
| title_fullStr | New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering |
| title_full_unstemmed | New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering |
| title_short | New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering |
| title_sort | new insights into water dynamics of portland cement paste with nano additives using quasielastic neutron scattering |
| url | https://hdl.handle.net/1721.1/131904 |
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