Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate
The huge increase in production of construction and demolition waste (CDW) worldwide is leading to the valorisation of as recycled aggregates. One of the most promising alternatives is its use as a recycled aggregate in the manufacture of structural concrete, which motivates the study of the dynamic...
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MDPI AG
2021-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/11/5045 |
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| author | Blas Cantero Jose Sainz-Aja Adrian Yoris César Medina Carlos Thomas |
| author_facet | Blas Cantero Jose Sainz-Aja Adrian Yoris César Medina Carlos Thomas |
| author_sort | Blas Cantero |
| collection | DOAJ |
| description | The huge increase in production of construction and demolition waste (CDW) worldwide is leading to the valorisation of as recycled aggregates. One of the most promising alternatives is its use as a recycled aggregate in the manufacture of structural concrete, which motivates the study of the dynamic behaviour of these materials in order to ensure their suitability for use in elements subjected to dynamic loads. This work evaluated the resonant compressive fatigue behaviour of structural concretes with 25% or 50% recycled mixed aggregates, either individually or in combination with 25% recycled cement of clay-based materials both from CDW. All mixes were subjected to compressive fatigue tests using the accelerated Locati method. Regarding the fatigue limit, the results showed that for all mixes, it was between 30% and 45% of the compressive strength. In addition, a correlation was also found between the resonance frequency of the test and the deformation suffered by the specimen. This correlation enabled the estimation of the fatigue limit through a more stable parameter than the strain measured by strain gauges, namely, the resonance frequency. In addition, it was found that the resonance frequency of the test changed as the specimen damage increased. This observation enabled the estimation of the fatigue limit through a more stable parameter than the strain measured by strain gauges, namely, the resonance frequency. |
| first_indexed | 2024-03-10T10:53:19Z |
| format | Article |
| id | doaj.art-107dcc031f394280877cdf615eb89c65 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T10:53:19Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-107dcc031f394280877cdf615eb89c652023-11-21T22:01:20ZengMDPI AGApplied Sciences2076-34172021-05-011111504510.3390/app11115045Resonance Fatigue Behaviour of Concretes with Recycled Cement and AggregateBlas Cantero0Jose Sainz-Aja1Adrian Yoris2César Medina3Carlos Thomas4Department of Construction, School of Engineering, University of Extremadura, UEX-CSIC Partnering Unit, Institute for Sustainable Regional Development (INTERRA), 1003 Cáceres, SpainLADICIM (Laboratory of Materials Science and Engineering), University of Cantabria, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Av/Los Castros, 39005 Santander, SpainLADICIM (Laboratory of Materials Science and Engineering), University of Cantabria, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Av/Los Castros, 39005 Santander, SpainDepartment of Construction, School of Engineering, University of Extremadura, UEX-CSIC Partnering Unit, Institute for Sustainable Regional Development (INTERRA), 1003 Cáceres, SpainLADICIM (Laboratory of Materials Science and Engineering), University of Cantabria, E.T.S. de Ingenieros de Caminos, Canales y Puertos, Av/Los Castros, 39005 Santander, SpainThe huge increase in production of construction and demolition waste (CDW) worldwide is leading to the valorisation of as recycled aggregates. One of the most promising alternatives is its use as a recycled aggregate in the manufacture of structural concrete, which motivates the study of the dynamic behaviour of these materials in order to ensure their suitability for use in elements subjected to dynamic loads. This work evaluated the resonant compressive fatigue behaviour of structural concretes with 25% or 50% recycled mixed aggregates, either individually or in combination with 25% recycled cement of clay-based materials both from CDW. All mixes were subjected to compressive fatigue tests using the accelerated Locati method. Regarding the fatigue limit, the results showed that for all mixes, it was between 30% and 45% of the compressive strength. In addition, a correlation was also found between the resonance frequency of the test and the deformation suffered by the specimen. This correlation enabled the estimation of the fatigue limit through a more stable parameter than the strain measured by strain gauges, namely, the resonance frequency. In addition, it was found that the resonance frequency of the test changed as the specimen damage increased. This observation enabled the estimation of the fatigue limit through a more stable parameter than the strain measured by strain gauges, namely, the resonance frequency.https://www.mdpi.com/2076-3417/11/11/5045recycled concreteresonant fatigueLocati methodhigh frequency |
| spellingShingle | Blas Cantero Jose Sainz-Aja Adrian Yoris César Medina Carlos Thomas Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate Applied Sciences recycled concrete resonant fatigue Locati method high frequency |
| title | Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate |
| title_full | Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate |
| title_fullStr | Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate |
| title_full_unstemmed | Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate |
| title_short | Resonance Fatigue Behaviour of Concretes with Recycled Cement and Aggregate |
| title_sort | resonance fatigue behaviour of concretes with recycled cement and aggregate |
| topic | recycled concrete resonant fatigue Locati method high frequency |
| url | https://www.mdpi.com/2076-3417/11/11/5045 |
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