Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Potential of Using Recycled Carbon Fibers as Reinforcing Material for Fiber Concrete
Carbon fibre reinforced polymers (CFRP) are taking over the aerospace, automotive, and wind energy sector. The growing demand for CFRP leads to a growing mass of CFRP waste. Landfilling and incineration are not effective and environmentally friendly routes for CFRP waste. The primary aim of this research paper is to determine the potential of using short pyrolyzed recycled carbon fibres (rCF) from CFRP waste to enhance the mechanical properties of fibre reinforced concrete (FRC). The secondary objective is to enhance the mechanical properties of FRC by optimizing fibre-matrix bonding in the interphase region. Recycled carbon fibre reinforced concrete (rCFRC) 60 specimens were prepared. These specimens consist of different rCF volume content of 0.00, 0.25, 0.5, 0.75 and 1 vol.-%. 4-point bending test procedure, along with visual analysis was performed for the characterization of the specimens. Oxygen (O2) plasma treatment has been used to improve the rCF (reinforcement) and concrete (matrix) adhesion. A maximum gain of 31% was achieved in flexural strength at fibre volume content of 0.5 vol.-% as compared to plain concrete. O2 plasma-treated rCFRC has a much higher value for elongation at break as compared to untreated rCFRC series.
Potential of Using Recycled Carbon Fibers as Reinforcing Material for Fiber Concrete
Carbon fibre reinforced polymers (CFRP) are taking over the aerospace, automotive, and wind energy sector. The growing demand for CFRP leads to a growing mass of CFRP waste. Landfilling and incineration are not effective and environmentally friendly routes for CFRP waste. The primary aim of this research paper is to determine the potential of using short pyrolyzed recycled carbon fibres (rCF) from CFRP waste to enhance the mechanical properties of fibre reinforced concrete (FRC). The secondary objective is to enhance the mechanical properties of FRC by optimizing fibre-matrix bonding in the interphase region. Recycled carbon fibre reinforced concrete (rCFRC) 60 specimens were prepared. These specimens consist of different rCF volume content of 0.00, 0.25, 0.5, 0.75 and 1 vol.-%. 4-point bending test procedure, along with visual analysis was performed for the characterization of the specimens. Oxygen (O2) plasma treatment has been used to improve the rCF (reinforcement) and concrete (matrix) adhesion. A maximum gain of 31% was achieved in flexural strength at fibre volume content of 0.5 vol.-% as compared to plain concrete. O2 plasma-treated rCFRC has a much higher value for elongation at break as compared to untreated rCFRC series.
Potential of Using Recycled Carbon Fibers as Reinforcing Material for Fiber Concrete
RILEM Bookseries
Serna, Pedro (Herausgeber:in) / Llano-Torre, Aitor (Herausgeber:in) / Martí-Vargas, José R. (Herausgeber:in) / Navarro-Gregori, Juan (Herausgeber:in) / Kimm, Magdalena (Autor:in) / Sabir, Amna (Autor:in) / Gries, Thomas (Autor:in) / Suwanpinij, Piyada (Autor:in)
RILEM-fib International Symposium on Fibre Reinforced Concrete ; 2020 ; Valencia, Spain
Fibre Reinforced Concrete: Improvements and Innovations ; Kapitel: 83 ; 949-960
RILEM Bookseries ; 30
05.11.2020
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch