Mechanical Performance of the Composite Concrete System Under Fire Exposure

Baloch W. L., Siad H., Lachemi M., ŞAHMARAN M.

Annual Conference of the Canadian Society of Civil Engineering, CSCE 2021, Virtual, Online, 26 - 29 Mayıs 2021, cilt.248, ss.121-133 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 248
  • Doi Numarası: 10.1007/978-981-19-1004-3_9
  • Basıldığı Şehir: Virtual, Online
  • Sayfa Sayıları: ss.121-133
  • Hacettepe Üniversitesi Adresli: Evet

Özet

© 2023, Canadian Society for Civil Engineering.This paper investigates the performance of composite systems combining self-consolidating concrete (SCC) and normal strength concrete (NSC) under fire exposure. SCC was used in the compression zone while NSC was overlaid in the tensile zone. The resulting systems were exposed to high temperatures ranging from 23 to 800 °C. Two types of cooling regimes have been considered i.e. water and air cooling. The primary objective of the study was to analyze the interfacial bond deterioration and the variation in mechanical strength. Test results indicated that the mechanical strength and mass decreases with rise in exposure temperature. The interface remained intact without excessive damage. Further, the thermal shock experienced during the water cooling negatively impacts the composite system.