THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG
The paper investigates the way a shrinkage-reducing admixture affects the long-term development of dynamic properties in mortars made with alkali-activated slag (AAS). Two AAS mortars were tested - one contained a shrinkage-reducing admixture, the other did not. The specimens (prisms of 40 × 40 × 16...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2019-07-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5638 |
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| author | Martin Alexa Dalibor Kocáb Barbara Kucharczyková Jan Kotrla |
| author_facet | Martin Alexa Dalibor Kocáb Barbara Kucharczyková Jan Kotrla |
| author_sort | Martin Alexa |
| collection | DOAJ |
| description | The paper investigates the way a shrinkage-reducing admixture affects the long-term development of dynamic properties in mortars made with alkali-activated slag (AAS). Two AAS mortars were tested - one contained a shrinkage-reducing admixture, the other did not. The specimens (prisms of 40 × 40 × 160mm) were observed for changes in the dynamic modulus of elasticity at ages of 3 days through 2 years using the ultrasonic pulse velocity test and the resonance method. Even though the statistical analysis of the results gave no proof that the shrinkage-reducing admixture affected the final values, the development of the elastic modulus appeared to follow a very interesting trend which is completely different from trends commonly observed in cement-based composites. |
| format | Article |
| id | doaj-art-a45db542cf624f72941e03626b72f0b4 |
| institution | Matheson Library |
| issn | 2336-5382 |
| language | English |
| publishDate | 2019-07-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-a45db542cf624f72941e03626b72f0b42025-08-02T15:45:33ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822019-07-012201610.14311/APP.2019.22.00014546THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAGMartin AlexaDalibor KocábBarbara KucharczykováJan KotrlaThe paper investigates the way a shrinkage-reducing admixture affects the long-term development of dynamic properties in mortars made with alkali-activated slag (AAS). Two AAS mortars were tested - one contained a shrinkage-reducing admixture, the other did not. The specimens (prisms of 40 × 40 × 160mm) were observed for changes in the dynamic modulus of elasticity at ages of 3 days through 2 years using the ultrasonic pulse velocity test and the resonance method. Even though the statistical analysis of the results gave no proof that the shrinkage-reducing admixture affected the final values, the development of the elastic modulus appeared to follow a very interesting trend which is completely different from trends commonly observed in cement-based composites.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5638alkali-activated slag, dynamic modulus of elasticity, ultrasonic pulse velocity test, resonance method |
| spellingShingle | Martin Alexa Dalibor Kocáb Barbara Kucharczyková Jan Kotrla THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG Acta Polytechnica CTU Proceedings alkali-activated slag, dynamic modulus of elasticity, ultrasonic pulse velocity test, resonance method |
| title | THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG |
| title_full | THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG |
| title_fullStr | THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG |
| title_full_unstemmed | THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG |
| title_short | THE INFLUENCE OF A SHRINKAGE REDUCING ADMIXTURE ON THE LONG-TERM DEVELOPMENT OF DYNAMIC PROPERTIES IN ALKALI-ACTIVATED SLAG |
| title_sort | influence of a shrinkage reducing admixture on the long term development of dynamic properties in alkali activated slag |
| topic | alkali-activated slag, dynamic modulus of elasticity, ultrasonic pulse velocity test, resonance method |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5638 |
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