Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database
Ultra-high-performance concrete (UHPC) stands out as a crucial construction material, boasting outstanding mechanical properties and exceptional durability in its uncracked state. The distinctive strain-hardening tensile behavior of UHPC necessitates a consideration of material and structural durabi...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-04-01
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| Series: | Developments in the Built Environment |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666165924000693 |
| _version_ | 1797267641156501504 |
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| author | Zhewen Huang Estefania Cuenca Liberato Ferrara |
| author_facet | Zhewen Huang Estefania Cuenca Liberato Ferrara |
| author_sort | Zhewen Huang |
| collection | DOAJ |
| description | Ultra-high-performance concrete (UHPC) stands out as a crucial construction material, boasting outstanding mechanical properties and exceptional durability in its uncracked state. The distinctive strain-hardening tensile behavior of UHPC necessitates a consideration of material and structural durability in the cracked state, prompting a rethinking of structural concepts and design approaches. Consequently, various competing mechanisms, including material deterioration, self-sealing, and self-healing capabilities, require meticulous assessment. The autogenous nature of the self-healing capacity of the material, crafted with compositions tailored to specific mechanical properties, further underscores this evaluation. This study elucidates above concepts by compiling and analyzing an extensive database of crack closure data obtained and processed through image processing techniques. This research specifically delves into appraising the self-sealing capacity of UHPC under structural service conditions, encompassing challenges such as chloride and sulfate attacks. Additionally, it endeavors to distinguish the crack healing kinetics of diverse UHPC mix designs, calibrating them across varying crack widths (0–20, 20–50, 50–100, 100–300 μm) and diverse healing environments. These findings assume significance in establishing the ''healable width threshold'' and the ''self-healing coefficients of the crack healing kinetics law'' under ''structural service conditions''. |
| first_indexed | 2024-04-25T01:19:49Z |
| format | Article |
| id | doaj.art-f111f74d5027448db81aed6b2ef92a6f |
| institution | Directory Open Access Journal |
| issn | 2666-1659 |
| language | English |
| last_indexed | 2024-04-25T01:19:49Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Developments in the Built Environment |
| spelling | doaj.art-f111f74d5027448db81aed6b2ef92a6f2024-03-09T09:29:30ZengElsevierDevelopments in the Built Environment2666-16592024-04-0118100388Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience databaseZhewen Huang0Estefania Cuenca1Liberato Ferrara2Corresponding author.; Department of Civil and Environmental Engineering, Politecnico di Milano, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, ItalyDepartment of Civil and Environmental Engineering, Politecnico di Milano, ItalyUltra-high-performance concrete (UHPC) stands out as a crucial construction material, boasting outstanding mechanical properties and exceptional durability in its uncracked state. The distinctive strain-hardening tensile behavior of UHPC necessitates a consideration of material and structural durability in the cracked state, prompting a rethinking of structural concepts and design approaches. Consequently, various competing mechanisms, including material deterioration, self-sealing, and self-healing capabilities, require meticulous assessment. The autogenous nature of the self-healing capacity of the material, crafted with compositions tailored to specific mechanical properties, further underscores this evaluation. This study elucidates above concepts by compiling and analyzing an extensive database of crack closure data obtained and processed through image processing techniques. This research specifically delves into appraising the self-sealing capacity of UHPC under structural service conditions, encompassing challenges such as chloride and sulfate attacks. Additionally, it endeavors to distinguish the crack healing kinetics of diverse UHPC mix designs, calibrating them across varying crack widths (0–20, 20–50, 50–100, 100–300 μm) and diverse healing environments. These findings assume significance in establishing the ''healable width threshold'' and the ''self-healing coefficients of the crack healing kinetics law'' under ''structural service conditions''.http://www.sciencedirect.com/science/article/pii/S2666165924000693Self-healing kinetical lawHealable crack width thresholdUHPCDurabilityIndex of crack closure |
| spellingShingle | Zhewen Huang Estefania Cuenca Liberato Ferrara Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database Developments in the Built Environment Self-healing kinetical law Healable crack width threshold UHPC Durability Index of crack closure |
| title | Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database |
| title_full | Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database |
| title_fullStr | Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database |
| title_full_unstemmed | Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database |
| title_short | Incorporation of self-healing of UHPC in structural design approaches through healable crack width threshold and kinetics: The case study of H2020 project ReSHEALience database |
| title_sort | incorporation of self healing of uhpc in structural design approaches through healable crack width threshold and kinetics the case study of h2020 project reshealience database |
| topic | Self-healing kinetical law Healable crack width threshold UHPC Durability Index of crack closure |
| url | http://www.sciencedirect.com/science/article/pii/S2666165924000693 |
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