CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY
The article deals with the selection of a suitable hardening accelerator for cement composite material for mass production of masonry blocks. The blocks contain cement and finely ground recycled concrete in ratio 1:1. Three different hardening accelerators in different quantity were tested for possi...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2020-03-01
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| Series: | Acta Polytechnica CTU Proceedings |
| Subjects: | |
| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/6374 |
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| _version_ | 1849248964217405440 |
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| author | Jakub Ďureje Zdeněk Prošek |
| author_facet | Jakub Ďureje Zdeněk Prošek |
| author_sort | Jakub Ďureje |
| collection | DOAJ |
| description | The article deals with the selection of a suitable hardening accelerator for cement composite material for mass production of masonry blocks. The blocks contain cement and finely ground recycled concrete in ratio 1:1. Three different hardening accelerators in different quantity were tested for possibility of fast removing formwork. The dynamic modulus of elasticity was measured by non-destructive resonance method to determine the initial strengths. The modulus of elasticity was measured 7 and 12 hours after sample production to determine the increase in initial strength. Subsequently, the modulus of elasticity was measured at 1, 7, 14, 21 and 28 days after production of the test specimens. The resulting moduli of elasticity were compared with reference samples. |
| format | Article |
| id | doaj-art-c87c3231df8d462c9799e2fbaa933c60 |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2020-03-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-c87c3231df8d462c9799e2fbaa933c602025-08-20T03:57:43ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822020-03-01260192310.14311/APP.2020.26.00194992CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITYJakub Ďureje0Zdeněk Prošek1Czech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Department of Mechanics, Thákurova 7, 166 29 Prague 6, Czech RepublicThe article deals with the selection of a suitable hardening accelerator for cement composite material for mass production of masonry blocks. The blocks contain cement and finely ground recycled concrete in ratio 1:1. Three different hardening accelerators in different quantity were tested for possibility of fast removing formwork. The dynamic modulus of elasticity was measured by non-destructive resonance method to determine the initial strengths. The modulus of elasticity was measured 7 and 12 hours after sample production to determine the increase in initial strength. Subsequently, the modulus of elasticity was measured at 1, 7, 14, 21 and 28 days after production of the test specimens. The resulting moduli of elasticity were compared with reference samples.https://ojs.cvut.cz/ojs/index.php/APP/article/view/6374recycled concrete, finely ground concrete, hardening accelerator, recycled masonry blocks |
| spellingShingle | Jakub Ďureje Zdeněk Prošek CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY Acta Polytechnica CTU Proceedings recycled concrete, finely ground concrete, hardening accelerator, recycled masonry blocks |
| title | CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY |
| title_full | CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY |
| title_fullStr | CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY |
| title_full_unstemmed | CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY |
| title_short | CEMENT PASTE CONTAINING MICRONIZED RECYCLED CONCRETE - INFLUENCE OF HARDENING ACCELERATORS ON THE MODULUS OF ELASTICITY |
| title_sort | cement paste containing micronized recycled concrete influence of hardening accelerators on the modulus of elasticity |
| topic | recycled concrete, finely ground concrete, hardening accelerator, recycled masonry blocks |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/6374 |
| work_keys_str_mv | AT jakubdureje cementpastecontainingmicronizedrecycledconcreteinfluenceofhardeningacceleratorsonthemodulusofelasticity AT zdenekprosek cementpastecontainingmicronizedrecycledconcreteinfluenceofhardeningacceleratorsonthemodulusofelasticity |