Nano-structural and nano-constraint behavior of mortar containing silica aggregates
In this study, nano-structural and nano-constraints behavior of two silica aggregate mortars are investigated. The first silica aggregate (A) is almost pure silica and the second one (B) contains silica, calcite and dolomite phases. The relationship between the durability and nano-structural changes...
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-06-01
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| Series: | Reviews on Advanced Materials Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/rams-2022-0027 |
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| author | El Bahraoui Elhassan Khouchaf Lahcen Oufakir Abdelhamid Ben Fraj Amor Elaatmani Mohammed Zegzouti Abdelouahed |
| author_facet | El Bahraoui Elhassan Khouchaf Lahcen Oufakir Abdelhamid Ben Fraj Amor Elaatmani Mohammed Zegzouti Abdelouahed |
| author_sort | El Bahraoui Elhassan |
| collection | DOAJ |
| description | In this study, nano-structural and nano-constraints behavior of two silica aggregate mortars are investigated. The first silica aggregate (A) is almost pure silica and the second one (B) contains silica, calcite and dolomite phases. The relationship between the durability and nano-structural changes is evidenced using Transmission Electron Microscope, X-ray diffraction (XRD) and TGA/DTA. The nano-structural results show that the macroscopic properties of mortars greatly depend on physico-chemical properties of aggregates. Higher the water absorption, higher the consumption of the Portlandite; the consumption of Portlandite, after 28 days of curing, is more in Bm sample than in Am sample. A relationship between the Portlandite content and the water absorption is evidenced. The relationship between reactivity and nano-constraints deduced from XRD modeling is highlighted. |
| first_indexed | 2024-04-12T16:41:36Z |
| format | Article |
| id | doaj.art-96480fdebd784633ae38b62654411656 |
| institution | Directory Open Access Journal |
| issn | 1605-8127 |
| language | English |
| last_indexed | 2024-04-12T16:41:36Z |
| publishDate | 2022-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Reviews on Advanced Materials Science |
| spelling | doaj.art-96480fdebd784633ae38b626544116562022-12-22T03:24:46ZengDe GruyterReviews on Advanced Materials Science1605-81272022-06-0161136337110.1515/rams-2022-0027Nano-structural and nano-constraint behavior of mortar containing silica aggregatesEl Bahraoui Elhassan0Khouchaf Lahcen1Oufakir Abdelhamid2Ben Fraj Amor3Elaatmani Mohammed4Zegzouti Abdelouahed5Department of Chemistry, Laboratory of Materials Science and Process Optimization, Cadi Ayyad University, Semlalia Faculty of Science, Marrakech, MoroccoResearch Center, IMT Nord Europe, Lille University, Cité Scientifique, Rue Guglielmo Marconi, BP 20145, 59653 Villeneuve D’Ascq Cedex, FranceDepartment of Chemistry, Laboratory of Materials Science and Process Optimization, Cadi Ayyad University, Semlalia Faculty of Science, Marrakech, MoroccoDima Team, Cerema Research Team DIMA, 120 Rue de Paris – BP 216, Sourdun, 77487 Provins Cedex, FranceDepartment of Chemistry, Laboratory of Materials Science and Process Optimization, Cadi Ayyad University, Semlalia Faculty of Science, Marrakech, MoroccoDepartment of Chemistry, Laboratory of Materials Science and Process Optimization, Cadi Ayyad University, Semlalia Faculty of Science, Marrakech, MoroccoIn this study, nano-structural and nano-constraints behavior of two silica aggregate mortars are investigated. The first silica aggregate (A) is almost pure silica and the second one (B) contains silica, calcite and dolomite phases. The relationship between the durability and nano-structural changes is evidenced using Transmission Electron Microscope, X-ray diffraction (XRD) and TGA/DTA. The nano-structural results show that the macroscopic properties of mortars greatly depend on physico-chemical properties of aggregates. Higher the water absorption, higher the consumption of the Portlandite; the consumption of Portlandite, after 28 days of curing, is more in Bm sample than in Am sample. A relationship between the Portlandite content and the water absorption is evidenced. The relationship between reactivity and nano-constraints deduced from XRD modeling is highlighted.https://doi.org/10.1515/rams-2022-0027durabilitynatural silica aggregatesportlanditenano constraintstem |
| spellingShingle | El Bahraoui Elhassan Khouchaf Lahcen Oufakir Abdelhamid Ben Fraj Amor Elaatmani Mohammed Zegzouti Abdelouahed Nano-structural and nano-constraint behavior of mortar containing silica aggregates Reviews on Advanced Materials Science durability natural silica aggregates portlandite nano constraints tem |
| title | Nano-structural and nano-constraint behavior of mortar containing silica aggregates |
| title_full | Nano-structural and nano-constraint behavior of mortar containing silica aggregates |
| title_fullStr | Nano-structural and nano-constraint behavior of mortar containing silica aggregates |
| title_full_unstemmed | Nano-structural and nano-constraint behavior of mortar containing silica aggregates |
| title_short | Nano-structural and nano-constraint behavior of mortar containing silica aggregates |
| title_sort | nano structural and nano constraint behavior of mortar containing silica aggregates |
| topic | durability natural silica aggregates portlandite nano constraints tem |
| url | https://doi.org/10.1515/rams-2022-0027 |
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