Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends
The autogenous self-healing of cementitious material micro-cracks might lead to the service-life extension of structures. However, most of its aspects are still unknown. This paper investigates the self-healing capacity of ternary cement blends including metakaolin (MK), ground granulated blast-furn...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-06-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/13/11/2543 |
| _version_ | 1797566230136094720 |
|---|---|
| author | Mojtaba Mohammadi Carol Youssef-Namnoum Maxime Robira Benoit Hilloulin |
| author_facet | Mojtaba Mohammadi Carol Youssef-Namnoum Maxime Robira Benoit Hilloulin |
| author_sort | Mojtaba Mohammadi |
| collection | DOAJ |
| description | The autogenous self-healing of cementitious material micro-cracks might lead to the service-life extension of structures. However, most of its aspects are still unknown. This paper investigates the self-healing capacity of ternary cement blends including metakaolin (MK), ground granulated blast-furnace slag (BFS), limestone (LS), and siliceous filler (F). Morphology and healing precipitation patterns were studied through the optical microscopy of artificial micro-cracks, global healing product mass monitoring, and XRD and TGA used to identify and quantify mineral formation. The self-healing potential index is introduced based on the mass measurements. It was found that the formulation containing 10% MK presented the highest healing potential at an early age (<28 days), while the formulations containing 20% BFS with 10% LS/F showed a higher healing potential at an older age (cracked after 28 days of curing). Calcite, C-S-H, and portlandite were found to be the main healing products alongside specific formulation-dependent compounds, and it was observed that the calcite’s relative quantity generally increased with time. Finally, the evolution of the self-healing product phases was accurately monitored through XRD and TGA measurements. |
| first_indexed | 2024-03-10T19:23:45Z |
| format | Article |
| id | doaj.art-6689b38f89b34de08a33895e7b574fd0 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T19:23:45Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6689b38f89b34de08a33895e7b574fd02023-11-20T02:43:10ZengMDPI AGMaterials1996-19442020-06-011311254310.3390/ma13112543Self-Healing Potential and Phase Evolution Characterization of Ternary Cement BlendsMojtaba Mohammadi0Carol Youssef-Namnoum1Maxime Robira2Benoit Hilloulin3Institut de Recherche en Génie Civil et Mécanique (GeM), UMR 6183, Ecole Centrale de Nantes—Université de Nantes—CNRS, 1 rue de la Noë, 44321 Nantes, FranceInstitut de Recherche en Génie Civil et Mécanique (GeM), UMR 6183, Ecole Centrale de Nantes—Université de Nantes—CNRS, 1 rue de la Noë, 44321 Nantes, FranceInstitut de Recherche en Génie Civil et Mécanique (GeM), UMR 6183, Ecole Centrale de Nantes—Université de Nantes—CNRS, 1 rue de la Noë, 44321 Nantes, FranceInstitut de Recherche en Génie Civil et Mécanique (GeM), UMR 6183, Ecole Centrale de Nantes—Université de Nantes—CNRS, 1 rue de la Noë, 44321 Nantes, FranceThe autogenous self-healing of cementitious material micro-cracks might lead to the service-life extension of structures. However, most of its aspects are still unknown. This paper investigates the self-healing capacity of ternary cement blends including metakaolin (MK), ground granulated blast-furnace slag (BFS), limestone (LS), and siliceous filler (F). Morphology and healing precipitation patterns were studied through the optical microscopy of artificial micro-cracks, global healing product mass monitoring, and XRD and TGA used to identify and quantify mineral formation. The self-healing potential index is introduced based on the mass measurements. It was found that the formulation containing 10% MK presented the highest healing potential at an early age (<28 days), while the formulations containing 20% BFS with 10% LS/F showed a higher healing potential at an older age (cracked after 28 days of curing). Calcite, C-S-H, and portlandite were found to be the main healing products alongside specific formulation-dependent compounds, and it was observed that the calcite’s relative quantity generally increased with time. Finally, the evolution of the self-healing product phases was accurately monitored through XRD and TGA measurements.https://www.mdpi.com/1996-1944/13/11/2543autogenous self-healingternary cement blendssupplementary cementitious materials (SCMs)phase evolutionhealing potentialX-ray diffraction |
| spellingShingle | Mojtaba Mohammadi Carol Youssef-Namnoum Maxime Robira Benoit Hilloulin Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends Materials autogenous self-healing ternary cement blends supplementary cementitious materials (SCMs) phase evolution healing potential X-ray diffraction |
| title | Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends |
| title_full | Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends |
| title_fullStr | Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends |
| title_full_unstemmed | Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends |
| title_short | Self-Healing Potential and Phase Evolution Characterization of Ternary Cement Blends |
| title_sort | self healing potential and phase evolution characterization of ternary cement blends |
| topic | autogenous self-healing ternary cement blends supplementary cementitious materials (SCMs) phase evolution healing potential X-ray diffraction |
| url | https://www.mdpi.com/1996-1944/13/11/2543 |
| work_keys_str_mv | AT mojtabamohammadi selfhealingpotentialandphaseevolutioncharacterizationofternarycementblends AT carolyoussefnamnoum selfhealingpotentialandphaseevolutioncharacterizationofternarycementblends AT maximerobira selfhealingpotentialandphaseevolutioncharacterizationofternarycementblends AT benoithilloulin selfhealingpotentialandphaseevolutioncharacterizationofternarycementblends |