The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete
The paper presents the influence of different curing conditions—wet, dry, and protection against water evaporation (PEV)—on selected properties of concretes with different amounts of recycled concrete aggregate (RCA) previously subjected to atmospheric CO<sub>2</sub> sequestration. Two t...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/13/4441 |
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| author | Anna M. Grabiec Daniel Zawal Waheed Adewale Rasaq |
| author_facet | Anna M. Grabiec Daniel Zawal Waheed Adewale Rasaq |
| author_sort | Anna M. Grabiec |
| collection | DOAJ |
| description | The paper presents the influence of different curing conditions—wet, dry, and protection against water evaporation (PEV)—on selected properties of concretes with different amounts of recycled concrete aggregate (RCA) previously subjected to atmospheric CO<sub>2</sub> sequestration. Two types of cement were used, Portland cement and blast-furnace slag cement. The study was performed in laboratory conditions (at the temperature of 20 ± 1 °C and relative humidity of about 60%), according to currently applicable test procedures for most of the measured characteristics of concrete. Additionally, the eco-efficiency indexes (<i>b<sub>i</sub></i> and <i>c<sub>i</sub></i>) as well as the eco-durability S-CO<sub>2</sub> index were calculated. It was found that dry conditions cause the properties of concrete to deteriorate, especially concrete made of blast-furnace slag cement, while PEV allows the achievement of results comparable to wet conditions. Moreover, for series with the highest amounts of coarse recycled aggregate and after longer periods of curing, the difference between the effects of wet curing and protection against water evaporation disappears. The eco-efficiency and eco-durability indexes approach confirms the beneficial effect of blast-furnace slag cement used as a binder, but on the condition of using a proper way of curing. |
| first_indexed | 2024-03-10T18:50:42Z |
| format | Article |
| id | doaj.art-bf956020e7d4413280e4564fd9b696f6 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T18:50:42Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-bf956020e7d4413280e4564fd9b696f62023-11-20T05:09:40ZengMDPI AGApplied Sciences2076-34172020-06-011013444110.3390/app10134441The Effect of Curing Conditions on Selected Properties of Recycled Aggregate ConcreteAnna M. Grabiec0Daniel Zawal1Waheed Adewale Rasaq2Institute of Construction and Geoengineering, Poznań University of Life Science, 60-649 Poznań, PolandInstitute of Construction and Geoengineering, Poznań University of Life Science, 60-649 Poznań, PolandAqua Stone, 60-002 Poznań, PolandThe paper presents the influence of different curing conditions—wet, dry, and protection against water evaporation (PEV)—on selected properties of concretes with different amounts of recycled concrete aggregate (RCA) previously subjected to atmospheric CO<sub>2</sub> sequestration. Two types of cement were used, Portland cement and blast-furnace slag cement. The study was performed in laboratory conditions (at the temperature of 20 ± 1 °C and relative humidity of about 60%), according to currently applicable test procedures for most of the measured characteristics of concrete. Additionally, the eco-efficiency indexes (<i>b<sub>i</sub></i> and <i>c<sub>i</sub></i>) as well as the eco-durability S-CO<sub>2</sub> index were calculated. It was found that dry conditions cause the properties of concrete to deteriorate, especially concrete made of blast-furnace slag cement, while PEV allows the achievement of results comparable to wet conditions. Moreover, for series with the highest amounts of coarse recycled aggregate and after longer periods of curing, the difference between the effects of wet curing and protection against water evaporation disappears. The eco-efficiency and eco-durability indexes approach confirms the beneficial effect of blast-furnace slag cement used as a binder, but on the condition of using a proper way of curing.https://www.mdpi.com/2076-3417/10/13/4441curing conditionscarbonated recycled concrete aggregateeco-efficiency indexeseco-efficient index |
| spellingShingle | Anna M. Grabiec Daniel Zawal Waheed Adewale Rasaq The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete Applied Sciences curing conditions carbonated recycled concrete aggregate eco-efficiency indexes eco-efficient index |
| title | The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete |
| title_full | The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete |
| title_fullStr | The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete |
| title_full_unstemmed | The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete |
| title_short | The Effect of Curing Conditions on Selected Properties of Recycled Aggregate Concrete |
| title_sort | effect of curing conditions on selected properties of recycled aggregate concrete |
| topic | curing conditions carbonated recycled concrete aggregate eco-efficiency indexes eco-efficient index |
| url | https://www.mdpi.com/2076-3417/10/13/4441 |
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