Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties
In recent decades, large amounts of construction and demolition waste (CDW) have been generated and accumulated throughout Europe, which is a challenge to manage and control nowadays. This work shows the results of a study carried out with samples of ceramic recycled aggregates (CRAs) and recycled c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/24/8933 |
| _version_ | 1797456544082690048 |
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| author | Santiago Rosado Jorge Costafreda Domingo Martín Leticia Presa Lidia Gullón |
| author_facet | Santiago Rosado Jorge Costafreda Domingo Martín Leticia Presa Lidia Gullón |
| author_sort | Santiago Rosado |
| collection | DOAJ |
| description | In recent decades, large amounts of construction and demolition waste (CDW) have been generated and accumulated throughout Europe, which is a challenge to manage and control nowadays. This work shows the results of a study carried out with samples of ceramic recycled aggregates (CRAs) and recycled concrete aggregates (RCAs) mixed with cement (C) in mortars. The main objective of this research is to demonstrate how, by adding CRAs and RCAs to a mixture of cement and natural aggregate (NA), it is possible to develop a high-strength mortar and achieve the best mixing ratio. To achieve these objectives, the characterization of the samples was initially carried out such as XRF, XRD and SEM. Next, tests were carried out on the products obtained, such as the consistency of the fresh mortar and the density of the specimens. Finally, a study of mechanical compressive strength was performed at 7, 28 and 200 days. The results show that although both CRAs and RCAs negatively affect the curing process of the specimens, it is possible to develop mortars with compressive strengths greater than 20 MPa. An obvious increase in mechanical compressive strengths was seen between 7 and 200 days of analysis. The results achieved in this research could be an important guide for the management of CDWs by local industries, thus favouring the development of the circular economy. |
| first_indexed | 2024-03-09T16:09:20Z |
| format | Article |
| id | doaj.art-b30f1f6b2ef24e20a85eeaa144cbc458 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T16:09:20Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-b30f1f6b2ef24e20a85eeaa144cbc4582023-11-24T16:24:11ZengMDPI AGMaterials1996-19442022-12-011524893310.3390/ma15248933Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical PropertiesSantiago Rosado0Jorge Costafreda1Domingo Martín2Leticia Presa3Lidia Gullón4Fundación Gómez Pardo, 28003 Madrid, SpainDepartamento de Ingeniería Geológica y Minera, Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, 28003 Madrid, SpainDepartamento de Ingeniería Geológica y Minera, Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, 28003 Madrid, SpainDepartamento de Ingeniería Geológica y Minera, Escuela Técnica Superior de Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, 28003 Madrid, SpainFundación Gómez Pardo, 28003 Madrid, SpainIn recent decades, large amounts of construction and demolition waste (CDW) have been generated and accumulated throughout Europe, which is a challenge to manage and control nowadays. This work shows the results of a study carried out with samples of ceramic recycled aggregates (CRAs) and recycled concrete aggregates (RCAs) mixed with cement (C) in mortars. The main objective of this research is to demonstrate how, by adding CRAs and RCAs to a mixture of cement and natural aggregate (NA), it is possible to develop a high-strength mortar and achieve the best mixing ratio. To achieve these objectives, the characterization of the samples was initially carried out such as XRF, XRD and SEM. Next, tests were carried out on the products obtained, such as the consistency of the fresh mortar and the density of the specimens. Finally, a study of mechanical compressive strength was performed at 7, 28 and 200 days. The results show that although both CRAs and RCAs negatively affect the curing process of the specimens, it is possible to develop mortars with compressive strengths greater than 20 MPa. An obvious increase in mechanical compressive strengths was seen between 7 and 200 days of analysis. The results achieved in this research could be an important guide for the management of CDWs by local industries, thus favouring the development of the circular economy.https://www.mdpi.com/1996-1944/15/24/8933ceramicsconcretemortarscementmechanical strength |
| spellingShingle | Santiago Rosado Jorge Costafreda Domingo Martín Leticia Presa Lidia Gullón Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties Materials ceramics concrete mortars cement mechanical strength |
| title | Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties |
| title_full | Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties |
| title_fullStr | Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties |
| title_full_unstemmed | Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties |
| title_short | Recycled Aggregates from Ceramic and Concrete in Mortar Mixes: A Study of Their Mechanical Properties |
| title_sort | recycled aggregates from ceramic and concrete in mortar mixes a study of their mechanical properties |
| topic | ceramics concrete mortars cement mechanical strength |
| url | https://www.mdpi.com/1996-1944/15/24/8933 |
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