Recent advances in recycle of concrete, İlker Bekir Topçu, Tayfun Uygunoğlu, Uğur Can Arpalık,, 17-20 April 2019, Trabzon, Turkey, ss. 2181-2188.


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Topçu İ. B., Uygunoğlu T., Arpalık U. C.

International Civil Engineering and Architecture Conference 2019 (ICEARC’xx19), Trabzon, Türkiye, 17 - 20 Nisan 2019, cilt.1, ss.2181-2188

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Trabzon
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.2181-2188
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Rapidly increasing concrete production in the world also increases environmental problems as waste concrete and this makes concrete recycling a more important issue. Although there is not much big change in its use as fillers, studies on recycling aggregates have increased in recent years and more efficient results have been started. At the same time, it has become possible to recycle fresh concrete with washing technology. In this study, recent studies were examined on recycling in concrete technology. The studies examined in this paper were mainly focused on the water absorption of the recycling aggregate and to reduce the mixing water. There are some methods on reducing the water absorption of aggregates such as polymer-based treatments, mechanical processes, pre-absorbing and superplasticizer additive methods. In the polymer-based treatment method, the recycling aggregates are immersed in silicon-based additives and surrounded by a thin film layer. As a result, although the water absorption and abrasion resistance positive results on the possibility of negative results in terms of other researches will be deepened. In the mechanical treatment process, recycling aggregates were processed in pan type concrete mixing mixer with stripping blades. It was observed that 10 minutes of treatment yielded the best water absorption rate at different times. The use of superplasticizer additive was observed in the study using 0.10%, 0.15, 0.20, 0.25 and 0.30. As a result, the increase in the amount of water decreases strength of concrete.