Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs
Self-healing is defined as the capacity of a material to repair internal damage without any external intervention. In the case of concrete, this process can be autogenous, which is the natural capacity of the material. Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) has a high self-healing...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | MATEC Web of Conferences |
| Subjects: | |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2022/08/matecconf_cs2022_01005.pdf |
| _version_ | 1828822830286897152 |
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| author | Caballero-Jorna Marta Doostkami Hesam Roig-Flores Marta Serna Pedro |
| author_facet | Caballero-Jorna Marta Doostkami Hesam Roig-Flores Marta Serna Pedro |
| author_sort | Caballero-Jorna Marta |
| collection | DOAJ |
| description | Self-healing is defined as the capacity of a material to repair internal damage without any external intervention. In the case of concrete, this process can be autogenous, which is the natural capacity of the material. Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) has a high self-healing potential due to its high binder content with a low w/b ratio and its crack pattern with multiple micro cracks. This paper describes two UHPFRC water reservoirs, which were designed to minimise the volume of concrete used. The design is made of ribbed thin walls where shrinkage cracks are likely to happen. The objective of this work is to study the autogenous healing capability of this concrete in these cracks. The two water reservoirs have internal dimensions of 1.30×0.75×0.70 m³ and with 20 mm thickness in the centre of the walls. These walls displayed cracks (w < 100 μm), which were produced just after casting. Both reservoirs were filled with water, showing apparent water leakage. The cracks were monitored for 30 days, analysing pictures taken with an optical microscope. The results show that UHPFRC is able to heal autogenously under the conditions in this work, recovering completely the water tightness required for the water reservoirs. |
| first_indexed | 2024-12-12T13:22:43Z |
| format | Article |
| id | doaj.art-1f212476e41a47cdaa4a13905e51d9d6 |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-12T13:22:43Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-1f212476e41a47cdaa4a13905e51d9d62022-12-22T00:23:15ZengEDP SciencesMATEC Web of Conferences2261-236X2022-01-013610100510.1051/matecconf/202236101005matecconf_cs2022_01005Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirsCaballero-Jorna Marta0Doostkami Hesam1Roig-Flores Marta2Serna Pedro3Universitat Politècnica de València, Instituto de Ciencia y Tecnología del HormigónUniversitat Politècnica de València, Instituto de Ciencia y Tecnología del HormigónUniversitat Jaume I, Departamento de Ingeniería Mecánica y ConstrucciónUniversitat Politècnica de València, Instituto de Ciencia y Tecnología del HormigónSelf-healing is defined as the capacity of a material to repair internal damage without any external intervention. In the case of concrete, this process can be autogenous, which is the natural capacity of the material. Ultra-High-Performance Fibre Reinforced Concrete (UHPFRC) has a high self-healing potential due to its high binder content with a low w/b ratio and its crack pattern with multiple micro cracks. This paper describes two UHPFRC water reservoirs, which were designed to minimise the volume of concrete used. The design is made of ribbed thin walls where shrinkage cracks are likely to happen. The objective of this work is to study the autogenous healing capability of this concrete in these cracks. The two water reservoirs have internal dimensions of 1.30×0.75×0.70 m³ and with 20 mm thickness in the centre of the walls. These walls displayed cracks (w < 100 μm), which were produced just after casting. Both reservoirs were filled with water, showing apparent water leakage. The cracks were monitored for 30 days, analysing pictures taken with an optical microscope. The results show that UHPFRC is able to heal autogenously under the conditions in this work, recovering completely the water tightness required for the water reservoirs.https://www.matec-conferences.org/articles/matecconf/pdf/2022/08/matecconf_cs2022_01005.pdfautogenous healingcase studypermeabilityshrinkageultra high-performance fibre reinforced concretewater leakage |
| spellingShingle | Caballero-Jorna Marta Doostkami Hesam Roig-Flores Marta Serna Pedro Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs MATEC Web of Conferences autogenous healing case study permeability shrinkage ultra high-performance fibre reinforced concrete water leakage |
| title | Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs |
| title_full | Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs |
| title_fullStr | Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs |
| title_full_unstemmed | Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs |
| title_short | Autogenous Healing in Ultra-High-Performance Fibre Reinforced Concrete: application in two reduced scale water reservoirs |
| title_sort | autogenous healing in ultra high performance fibre reinforced concrete application in two reduced scale water reservoirs |
| topic | autogenous healing case study permeability shrinkage ultra high-performance fibre reinforced concrete water leakage |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2022/08/matecconf_cs2022_01005.pdf |
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