Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements
The paper presents the results from the research on self-compacting concrete with different steel fibre type addition. The reference self-compacting concrete mix with water/binder = 0.33 was prepared, then modified with steel fibres in the amounts of 0–60 kg/m3 and air entrained with polymer microsp...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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RTU Press
2016-03-01
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| Series: | The Baltic Journal of Road and Bridge Engineering |
| Subjects: | |
| Online Access: | https://bjrbe-journals.rtu.lv/article/view/3318 |
| _version_ | 1819276628667138048 |
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| author | Jerzy Wawrzeńczyk Agnieszka Molendowska Adam Kłak |
| author_facet | Jerzy Wawrzeńczyk Agnieszka Molendowska Adam Kłak |
| author_sort | Jerzy Wawrzeńczyk |
| collection | DOAJ |
| description | The paper presents the results from the research on self-compacting concrete with different steel fibre type addition. The reference self-compacting concrete mix with water/binder = 0.33 was prepared, then modified with steel fibres in the amounts of 0–60 kg/m3 and air entrained with polymer microspheres (40 μm diameter). The major objective of the research was to determine the effect of steel fibre and air content on the self-compacting concrete mix properties and hardened concrete frost durability. The tests also included internal cracking and scaling resistance evaluation for concrete specimens subjected to cyclic freeze-thaw process − two beams were frozen in air and two beams were partially submerged in water and then frozen. The scaling resistance was tested using the slab method on the specimens with sawn surface and on the specimens with natural finished surface. Non-air entrained steel fibre-reinforced concretes, despite their high strength class (C55/67–C60/75) and medium absorption (4.34–5.11%), showed unsatisfactory resistance to internal cracking and scaling tests. The beams partially submerged in water failed after 100 freeze-thaw cycles, which confirms a significant influence of water uptake from moist environment during freeze-thaw cycles and the acceleration of the damage process. Test results indicate that air entrainment with polymer microspheres is a very effective method and allows obtaining very good air pore structure parameters and frost resistance results. The specimens with top − finished surface exhibited less damage in the scaling resistance tests in relation to the specimens with sawn surface. |
| first_indexed | 2024-12-23T23:43:15Z |
| format | Article |
| id | doaj.art-7d1f0411ef7d4c78af2534b8b81471dd |
| institution | Directory Open Access Journal |
| issn | 1822-427X 1822-4288 |
| language | English |
| last_indexed | 2024-12-23T23:43:15Z |
| publishDate | 2016-03-01 |
| publisher | RTU Press |
| record_format | Article |
| series | The Baltic Journal of Road and Bridge Engineering |
| spelling | doaj.art-7d1f0411ef7d4c78af2534b8b81471dd2022-12-21T17:25:35ZengRTU PressThe Baltic Journal of Road and Bridge Engineering1822-427X1822-42882016-03-0111110.3846/bjrbe.2016.041813Frost Durability of Steel Fiber Self-Compacting Concrete for PavementsJerzy Wawrzeńczyk0Agnieszka Molendowska1Adam Kłak2Dept of Building Engineering Technologies and Organization, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, Zip-Code 25–314 Kielce, PolandDept of Building Engineering Technologies and Organization, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, Zip-Code 25–314 Kielce, PolandDept of Building Engineering Technologies and Organization, Kielce University of Technology, Al. Tysiąclecia Państwa Polskiego 7, Zip-Code 25–314 Kielce, PolandThe paper presents the results from the research on self-compacting concrete with different steel fibre type addition. The reference self-compacting concrete mix with water/binder = 0.33 was prepared, then modified with steel fibres in the amounts of 0–60 kg/m3 and air entrained with polymer microspheres (40 μm diameter). The major objective of the research was to determine the effect of steel fibre and air content on the self-compacting concrete mix properties and hardened concrete frost durability. The tests also included internal cracking and scaling resistance evaluation for concrete specimens subjected to cyclic freeze-thaw process − two beams were frozen in air and two beams were partially submerged in water and then frozen. The scaling resistance was tested using the slab method on the specimens with sawn surface and on the specimens with natural finished surface. Non-air entrained steel fibre-reinforced concretes, despite their high strength class (C55/67–C60/75) and medium absorption (4.34–5.11%), showed unsatisfactory resistance to internal cracking and scaling tests. The beams partially submerged in water failed after 100 freeze-thaw cycles, which confirms a significant influence of water uptake from moist environment during freeze-thaw cycles and the acceleration of the damage process. Test results indicate that air entrainment with polymer microspheres is a very effective method and allows obtaining very good air pore structure parameters and frost resistance results. The specimens with top − finished surface exhibited less damage in the scaling resistance tests in relation to the specimens with sawn surface.https://bjrbe-journals.rtu.lv/article/view/3318air-entrainmentfreeze-thaw durabilitymicrospheresself-compacting concrete (scc)steel fibres. |
| spellingShingle | Jerzy Wawrzeńczyk Agnieszka Molendowska Adam Kłak Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements The Baltic Journal of Road and Bridge Engineering air-entrainment freeze-thaw durability microspheres self-compacting concrete (scc) steel fibres. |
| title | Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements |
| title_full | Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements |
| title_fullStr | Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements |
| title_full_unstemmed | Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements |
| title_short | Frost Durability of Steel Fiber Self-Compacting Concrete for Pavements |
| title_sort | frost durability of steel fiber self compacting concrete for pavements |
| topic | air-entrainment freeze-thaw durability microspheres self-compacting concrete (scc) steel fibres. |
| url | https://bjrbe-journals.rtu.lv/article/view/3318 |
| work_keys_str_mv | AT jerzywawrzenczyk frostdurabilityofsteelfiberselfcompactingconcreteforpavements AT agnieszkamolendowska frostdurabilityofsteelfiberselfcompactingconcreteforpavements AT adamkłak frostdurabilityofsteelfiberselfcompactingconcreteforpavements |