Characteristics and propierties of oil-well cements additioned with blast furnace slag
The present paper addresses the alkali activation of Portland cements containing blast furnace slag (20 and 30% of the cement by weight) with a view to the possible use of these materials in oil well construction. The hydration studies conducted showed that in cement/slag blends, the sodium sili...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2011-06-01
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| Series: | Materiales de Construccion |
| Subjects: | |
| Online Access: | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/565 |
| _version_ | 1829485614234337280 |
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| author | R. Sánchez M. Palacios F. Puertas |
| author_facet | R. Sánchez M. Palacios F. Puertas |
| author_sort | R. Sánchez |
| collection | DOAJ |
| description | The present paper addresses the alkali activation of Portland cements containing blast furnace slag (20 and 30% of the cement by weight) with a view to the possible use of these materials in oil well construction.
The hydration studies conducted showed that in cement/slag blends, the sodium silicate activating solution partially inhibited the dissolution of the silicate phases in the Portland cement, retarding cement hydration and reducing the precipitation of reaction products. Due to such partial inhibition, the cement/slag blends had significantly lower mechanical strength than Portland cements hydrated with water. 29Si and 27Al MAS NMR and BSE/EDX studies, in turn, showed that the C-S-H gel forming in the alkali-activated cement/slag pastes contained Al in tetrahedral positions and low Ca/Si ratios. |
| first_indexed | 2024-12-14T22:48:40Z |
| format | Article |
| id | doaj.art-18b973ff67db466c95de3d5e70169737 |
| institution | Directory Open Access Journal |
| issn | 0465-2746 1988-3226 |
| language | English |
| last_indexed | 2024-12-14T22:48:40Z |
| publishDate | 2011-06-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Materiales de Construccion |
| spelling | doaj.art-18b973ff67db466c95de3d5e701697372022-12-21T22:44:47ZengConsejo Superior de Investigaciones CientíficasMateriales de Construccion0465-27461988-32262011-06-016130218521110.3989/mc.2010.54110547Characteristics and propierties of oil-well cements additioned with blast furnace slagR. Sánchez0M. Palacios1F. Puertas2Departamento de Ingeniería Metalúrgica. ESIQIE IPN ZacatencoInstitute of Building Materials, ETH Zurich - Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC)Instituto de Ciencias de la Construcción Eduardo Torroja (IETcc-CSIC)The present paper addresses the alkali activation of Portland cements containing blast furnace slag (20 and 30% of the cement by weight) with a view to the possible use of these materials in oil well construction. The hydration studies conducted showed that in cement/slag blends, the sodium silicate activating solution partially inhibited the dissolution of the silicate phases in the Portland cement, retarding cement hydration and reducing the precipitation of reaction products. Due to such partial inhibition, the cement/slag blends had significantly lower mechanical strength than Portland cements hydrated with water. 29Si and 27Al MAS NMR and BSE/EDX studies, in turn, showed that the C-S-H gel forming in the alkali-activated cement/slag pastes contained Al in tetrahedral positions and low Ca/Si ratios.http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/565alkali activationblast furnace slaghydrationmicrostructureoil-well cements |
| spellingShingle | R. Sánchez M. Palacios F. Puertas Characteristics and propierties of oil-well cements additioned with blast furnace slag Materiales de Construccion alkali activation blast furnace slag hydration microstructure oil-well cements |
| title | Characteristics and propierties of oil-well cements additioned with blast furnace slag |
| title_full | Characteristics and propierties of oil-well cements additioned with blast furnace slag |
| title_fullStr | Characteristics and propierties of oil-well cements additioned with blast furnace slag |
| title_full_unstemmed | Characteristics and propierties of oil-well cements additioned with blast furnace slag |
| title_short | Characteristics and propierties of oil-well cements additioned with blast furnace slag |
| title_sort | characteristics and propierties of oil well cements additioned with blast furnace slag |
| topic | alkali activation blast furnace slag hydration microstructure oil-well cements |
| url | http://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/565 |
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