Experimental investigation on the post-fire performance of reactive powder concrete columns

• Autorzy: Kadhum Mohammed , Mahdi Zainab , Funfakh Yousif , Mohammed Zaid , Abdulraheem Mustafa , Gkantou Michaela

Identyfikatory

DOI

10.22630/PNIKS.2021.30.2.27

• Języki publikacji: EN

Abstrakty

EN

The increased use of reactive powder concrete (RPC) in concrete structures has attracted attention towards the structural behavior of RPC in fires. This work examines experimentally the performance of RPC and NSC columns subjected to 25% of the ultimate load and exposed to direct fire flame for a period of 30 and 60 min at various temperature levels. The paper aims to evaluate the maximum temperature level and fire duration that can be withstood by this type of concrete columns. The results show that the failure mode of RPC columns without reinforcement is a sudden shear failure, whereas the failure mode of reinforced RPC columns is a crushing failure with rupture of certain ties. The RPC columns at high temperatures spall intensively; additionally, the ultimate strength clearly decreases compared to the NSC columns at the same conditions.

Słowa kluczowe

EN

post-fire; concrete; behavior; third term; fourth date; fifth date; max sixth

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Przegląd Naukowy Inżynieria i Kształtowanie Środowiska
• Rocznik: 2021
• Tom: Vol. 30, No. 2
• Strony: 315--326
• Opis fizyczny: Bibliogr. 19 poz., rys., tab., wykr., zdj.

Twórcy

autor

Kadhum Mohammed

• University of Babylon, College of Engineering, Department of Civil Engineering, Al Hilla, 51001, Iraq

• https://orcid.org/0000-0002-4732-3646

autor

Mahdi Zainab

• Middle Technical University, Technical Engineering College, Baghdad, 10001, Iraq

autor

Funfakh Yousif

• University of Babylon, College of Engineering, Department of Civil Engineering, Al Hilla, 51001, Iraq

autor

Mohammed Zaid

• University of Technology, Building and Construction Engineering Department, Baghdad, 10001, Iraq

autor

Abdulraheem Mustafa

• General Company of electricity distribution for the middle region, Karbala branch, Karbala, 5600, Iraq

autor

Gkantou Michaela

• Liverpool John Moores University, School of Civil Engineering and Built Environment, Liverpool, L3 3AF, UK

Bibliografia

• Abdulraheem, M.S. (2018). Experimental investigation of fire effects on ductility and stiffness of reinforced reactive powder concrete columns under axial compression. Journal of Building Engineering, 20, 750-761.
• Abdulraheem, M.S. & Kadhum, M.M. (2018). Experimental and numerical study on post- -fire behaviour of concentrically loaded reinforced reactive powder concrete columns. Construction and Building Materials, 168, 877-892.
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• Tuama, W., Kadhum, M., Alwash, N., Al-Khafaji, Z. & Abdulraheem, M. (2020). RPC Effect of Crude Oil Products on the Mechanical Characteristics of Reactive-Powder and Normal-Strength Concrete. Periodica Polytechnica Civil Engineering, 64(2), 422-429.
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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)