Araştırma Makalesi
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Farklı Mineral Katkılı Kendiliğinden Yerleşen Betonların Taze ve Sertleşmiş Özellikleri

Yıl 2020, Cilt: 20 Sayı: 2, 304 - 309, 20.05.2020
https://doi.org/10.35414/akufemubid.669249

Öz

Kendiliğinden yerleşen beton (KYB), taze beton karışımının akışkanlığının iyileştirilmiş olması fikri ile geliştirilmiştir. Akışkanlaştırıcı katkılardaki yeni teknoloji ve betonun özel karışım tasarımı, ayrışma ve terlemeyi gerektirmeden yapmıştır. Yerleştirme kolaylığına ek olarak, inşaat süresindeki azalma, işçilik maliyetleri ve şantiye gürültüsü KYB’nin diğer yararlarıdır. Bu çalışmanın amacı, KYB'nin taze ve sertleştirilmiş özellikleri üzerindeki ince mineral katkı etkisini araştırmaktır. Bu sebeple öğütülmüş yüksek fırın cürufu, uçucu kül, Bilecik mermer tozu ve kalkerli agrega kırma tozu, KYB karışım tasarımlarında ince toz kaynağı olarak kullanılır. KYB karışımlarının taze özellikleri, taze birim ağırlık, çökme akışı, V-hunisi ve L-kutusu deneyleri yapılarak belirlenmiştir. Hazırlanan KYB numunelerinin sertleştirilmiş özellikleri, 3, 7 ve 28 günlük kür sürelerinin sonunda, 150x150x150 mm küp beton numunelerinde birim ağırlık, ultrases geçiş hızı ve basınç dayanımı deneyleri ile değerlendirilmiştir. Test sonuçları uçucu kül ve öğütülmüş yüksek fırın cürufunun taze KYB özelliklerinin tutarlılığı üzerinde daha etkili olduğunu göstermiştir. Özellikle KYB'nin geçirme kabiliyeti, karışım tasarımında toz olarak uçucu kül kullanılmasıyla iyileştirilmiştir. KYB'nin basınç dayanımı, karışımda öğütülmüş yüksek fırın cürufu kullanılarak geliştirilebilmektedir. Mermer tozu ise KYB'nin uygunluğu ve maliyeti konusunda etkili ve faydalı olmuştur.

Kaynakça

  • Anjos, M.A.S., Camoes, A., Capos, P., Azevedo, G.A., Ferreira, R.L.S., 2020. Effect of high volume fly ash and metakaolin with and without hydrated lime on the properties of self-compacting concrete, Journal of Building Engineering, 27, 100985.
  • EFNARC guidelines, 2005. The European Guidelines for Self-compacting Concrete; Specification, Production and Use, European Federation of National Associations Representing for Concrete.
  • Karakurt, C., Çelik, A.O., Yılmazer, C., Kiriççi, V., Özyaşar, E., 2018. CFD simulations of self-compacting concrete with discrete phase modeling, Construction and Building Materials, 186, 20–30.
  • Larsen, O., Naruts, V., Aleksandrova, O., Mendes, B., Self-compacting concrete with recycled aggregates, Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2019.07.065.
  • Okamura, H., Ouchi, M., 2003. Self-compacting concrete, Journal of Advanced Concrete Technology, 1, 5–15.
  • Pade, C., Thrane, L.N., Nielsen, C.V., 2008. Guideliness for mix design of SCC, Danish Technological Institute.
  • Siddique, R., 2011. Properties of self-compacting concrete containing class F fly ash, Materials and Design, 32, 1501–1507.
  • Singh, N., Kumar, P., Goyal, P., 2019. Reviewing the behaviour of high volume fly ash based self compacting concrete, Journal of Engineering Building, 26, 100882.
  • TS EN 12350-8, 2011. Testing fresh concrete: self compacting concrete - slump-flow test, Turkish Standards Institute.
  • TS EN 12350-9, 2011. Testing fresh concrete: self compacting concrete – v-funnel test, Turkish Standards Institute.
  • TS EN 12390-3, 2003. Testing hardened concrete: compressive strength of test specimens, Turkish Standards Institute.
  • Zhao, H., Sun, W., Wu, X., Gao, B., 2016. The properties of the self-compacting concrete with fly ash and ground granulated blast furnace slag mineral admixtures, Journal of Cleaner Production, 95, 66-74.

Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives

Yıl 2020, Cilt: 20 Sayı: 2, 304 - 309, 20.05.2020
https://doi.org/10.35414/akufemubid.669249

Öz

Self-compacting concrete (SCC) is developed with the idea of improved flowability of the fresh concrete mixture. The new technology in plasticizing agents and special mix design of concrete has given this opportunity without any segregation and bleeding. In addition to ease of placement, reduction in the construction time, labor costs and construction noise are the other benefits of SCC. The aim of this study is to investigate the fine mineral additive effect on the fresh and hardened properties of the SCC. For this reason, ground granulated blast furnace slag, fly ash, Bilecik marble powder and calcareous aggregate crushing powder is used as fine powder source in SCC mix designs. Fresh properties of the SCC mixtures are evaluated by performing fresh unit weight, slump flow, V-funnel, and L-box tests. The hardened properties of the prepared SCC are evaluated with the unit weight, ultrasound pulse velocity and compressive strength tests on the 150x150x150 mm cubic specimens at the end of the 3, 7 and 28 days of curing periods. The experimental work showed that ground granulated blast furnace slag and fly ash are more effective on the consistency of the fresh SCC properties. Especially the passing ability of the SCC is improved by using fly ash as a powder in the mix design. The compressive strength of the SCC is developed by using ground granulated blast furnace slag in the mixture. The marble dust is also effective and beneficial for the cohesion and cost of the SCC.

Kaynakça

  • Anjos, M.A.S., Camoes, A., Capos, P., Azevedo, G.A., Ferreira, R.L.S., 2020. Effect of high volume fly ash and metakaolin with and without hydrated lime on the properties of self-compacting concrete, Journal of Building Engineering, 27, 100985.
  • EFNARC guidelines, 2005. The European Guidelines for Self-compacting Concrete; Specification, Production and Use, European Federation of National Associations Representing for Concrete.
  • Karakurt, C., Çelik, A.O., Yılmazer, C., Kiriççi, V., Özyaşar, E., 2018. CFD simulations of self-compacting concrete with discrete phase modeling, Construction and Building Materials, 186, 20–30.
  • Larsen, O., Naruts, V., Aleksandrova, O., Mendes, B., Self-compacting concrete with recycled aggregates, Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2019.07.065.
  • Okamura, H., Ouchi, M., 2003. Self-compacting concrete, Journal of Advanced Concrete Technology, 1, 5–15.
  • Pade, C., Thrane, L.N., Nielsen, C.V., 2008. Guideliness for mix design of SCC, Danish Technological Institute.
  • Siddique, R., 2011. Properties of self-compacting concrete containing class F fly ash, Materials and Design, 32, 1501–1507.
  • Singh, N., Kumar, P., Goyal, P., 2019. Reviewing the behaviour of high volume fly ash based self compacting concrete, Journal of Engineering Building, 26, 100882.
  • TS EN 12350-8, 2011. Testing fresh concrete: self compacting concrete - slump-flow test, Turkish Standards Institute.
  • TS EN 12350-9, 2011. Testing fresh concrete: self compacting concrete – v-funnel test, Turkish Standards Institute.
  • TS EN 12390-3, 2003. Testing hardened concrete: compressive strength of test specimens, Turkish Standards Institute.
  • Zhao, H., Sun, W., Wu, X., Gao, B., 2016. The properties of the self-compacting concrete with fly ash and ground granulated blast furnace slag mineral admixtures, Journal of Cleaner Production, 95, 66-74.
Toplam 12 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Cenk Karakurt 0000-0002-4204-5341

Yayımlanma Tarihi 20 Mayıs 2020
Gönderilme Tarihi 2 Ocak 2020
Yayımlandığı Sayı Yıl 2020 Cilt: 20 Sayı: 2

Kaynak Göster

APA Karakurt, C. (2020). Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, 20(2), 304-309. https://doi.org/10.35414/akufemubid.669249
AMA Karakurt C. Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi. Mayıs 2020;20(2):304-309. doi:10.35414/akufemubid.669249
Chicago Karakurt, Cenk. “Fresh and Hardened Behaviour of Self-Compacted Concrete With Different Mineral Additives”. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi 20, sy. 2 (Mayıs 2020): 304-9. https://doi.org/10.35414/akufemubid.669249.
EndNote Karakurt C (01 Mayıs 2020) Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi 20 2 304–309.
IEEE C. Karakurt, “Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives”, Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, c. 20, sy. 2, ss. 304–309, 2020, doi: 10.35414/akufemubid.669249.
ISNAD Karakurt, Cenk. “Fresh and Hardened Behaviour of Self-Compacted Concrete With Different Mineral Additives”. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi 20/2 (Mayıs 2020), 304-309. https://doi.org/10.35414/akufemubid.669249.
JAMA Karakurt C. Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi. 2020;20:304–309.
MLA Karakurt, Cenk. “Fresh and Hardened Behaviour of Self-Compacted Concrete With Different Mineral Additives”. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi, c. 20, sy. 2, 2020, ss. 304-9, doi:10.35414/akufemubid.669249.
Vancouver Karakurt C. Fresh and Hardened Behaviour of Self-Compacted Concrete with Different Mineral Additives. Afyon Kocatepe Üniversitesi Fen Ve Mühendislik Bilimleri Dergisi. 2020;20(2):304-9.