Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study
Alkali-Activated Materials (AAM) are often considered to be very durable and also frost-resistant. However, there are also contrary experiences. This paper focuses on the frost resistance of AAMs of different compositions – different amounts of activator and different ratios between alkali (R2O) and...
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| Format: | Article |
| Language: | English |
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2024-12-01
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| Series: | Civil and Environmental Engineering |
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| Online Access: | https://doi.org/10.2478/cee-2024-0072 |
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| author | Bilek Vlastimil Prochazka Lukas Matyskova Katerina Sucharda Oldrich |
| author_facet | Bilek Vlastimil Prochazka Lukas Matyskova Katerina Sucharda Oldrich |
| author_sort | Bilek Vlastimil |
| collection | DOAJ |
| description | Alkali-Activated Materials (AAM) are often considered to be very durable and also frost-resistant. However, there are also contrary experiences. This paper focuses on the frost resistance of AAMs of different compositions – different amounts of activator and different ratios between alkali (R2O) and silicon oxide content. Sodium water glass was used as the activator and its silicate modulus was modified by the addition of KOH. The R2O content was 4 -10 % and the R2O/SiO2 weight ratio was 33/67 (water glass only) up to 100/0 (KOH only). The frost resistance index was tested at the ages of 28, 91 and 365 days. Specimens were cured in foil or water and comparative specimens were also stored in foil or water. |
| format | Article |
| id | doaj-art-706f44de196f4cd7a9b1ae612b975ff3 |
| institution | Kabale University |
| issn | 2199-6512 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Civil and Environmental Engineering |
| spelling | doaj-art-706f44de196f4cd7a9b1ae612b975ff32025-02-02T15:47:54ZengSciendoCivil and Environmental Engineering2199-65122024-12-01202993100110.2478/cee-2024-0072Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric StudyBilek Vlastimil0Prochazka Lukas1Matyskova Katerina2Sucharda Oldrich3Department of Building Materials and Diagnostics of Structures, Faculty of Civil Engineering, VSB - Technical University of Ostrava, Ludvíka Podéště 1875/17, 708 00Ostrava-Poruba, Czech RepublicDepartment of Building Materials and Diagnostics of Structures, Faculty of Civil Engineering, VSB - Technical University of Ostrava, Ludvíka Podéště 1875/17, 708 00Ostrava-Poruba, Czech RepublicDepartment of Building Materials and Diagnostics of Structures, Faculty of Civil Engineering, VSB - Technical University of Ostrava, Ludvíka Podéště 1875/17, 708 00Ostrava-Poruba, Czech RepublicDepartment of Building Materials and Diagnostics of Structures, Faculty of Civil Engineering, VSB - Technical University of Ostrava, Ludvíka Podéště 1875/17, 708 00Ostrava-Poruba, Czech RepublicAlkali-Activated Materials (AAM) are often considered to be very durable and also frost-resistant. However, there are also contrary experiences. This paper focuses on the frost resistance of AAMs of different compositions – different amounts of activator and different ratios between alkali (R2O) and silicon oxide content. Sodium water glass was used as the activator and its silicate modulus was modified by the addition of KOH. The R2O content was 4 -10 % and the R2O/SiO2 weight ratio was 33/67 (water glass only) up to 100/0 (KOH only). The frost resistance index was tested at the ages of 28, 91 and 365 days. Specimens were cured in foil or water and comparative specimens were also stored in foil or water.https://doi.org/10.2478/cee-2024-0072alkali-activated materialsfrost resistancestrength. |
| spellingShingle | Bilek Vlastimil Prochazka Lukas Matyskova Katerina Sucharda Oldrich Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study Civil and Environmental Engineering alkali-activated materials frost resistance strength. |
| title | Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study |
| title_full | Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study |
| title_fullStr | Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study |
| title_full_unstemmed | Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study |
| title_short | Frost Resistance of Alkali-Activated Concrete with Different Compositions – Parametric Study |
| title_sort | frost resistance of alkali activated concrete with different compositions parametric study |
| topic | alkali-activated materials frost resistance strength. |
| url | https://doi.org/10.2478/cee-2024-0072 |
| work_keys_str_mv | AT bilekvlastimil frostresistanceofalkaliactivatedconcretewithdifferentcompositionsparametricstudy AT prochazkalukas frostresistanceofalkaliactivatedconcretewithdifferentcompositionsparametricstudy AT matyskovakaterina frostresistanceofalkaliactivatedconcretewithdifferentcompositionsparametricstudy AT suchardaoldrich frostresistanceofalkaliactivatedconcretewithdifferentcompositionsparametricstudy |