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A platform for research: civil engineering, architecture and urbanism
Study and modeling of the compressive and splitting tensile strengths of polypropylene fiber reinforced concrete containing recycled asphalt pavement
In a context of sustainable development and material recycling, the present study aims to studymechanical properties of a recycled asphalt pavement (RAP) concrete, reinforced with polypropylene fibers (PF).First, five formulations were designed with different RAP content with a maximum of 50% at a water cementratio (W/C) of 0,50. Experimental results showed that the more RAP content increases in mix, the moremechanical strengths decrease, mainly due to the weak interfacial transition zone (ITZ) between the mortar andthe recycled material. Reinforcement of PF at 0.1% and 1% volume fraction was realized on all mixes and theexperimental results showed that the compressive strength is increased while the splitting strength is decreased.Then, an experimental linear relationship between the splitting tensile strength and the compressive strength isproposed. In the second part of the study, the mechanical strengths were modeled using a factorial plan 22,giving a quantification of the individual effect of both introduction of the RAP and the reinforcement and thecombined effect, on response in terms of compressive strength and splitting tensile strength. Established modelpredicted the mechanical strength of a hardened concrete, whatever the RAP content and whatever the PFreinforcement content.
Study and modeling of the compressive and splitting tensile strengths of polypropylene fiber reinforced concrete containing recycled asphalt pavement
In a context of sustainable development and material recycling, the present study aims to studymechanical properties of a recycled asphalt pavement (RAP) concrete, reinforced with polypropylene fibers (PF).First, five formulations were designed with different RAP content with a maximum of 50% at a water cementratio (W/C) of 0,50. Experimental results showed that the more RAP content increases in mix, the moremechanical strengths decrease, mainly due to the weak interfacial transition zone (ITZ) between the mortar andthe recycled material. Reinforcement of PF at 0.1% and 1% volume fraction was realized on all mixes and theexperimental results showed that the compressive strength is increased while the splitting strength is decreased.Then, an experimental linear relationship between the splitting tensile strength and the compressive strength isproposed. In the second part of the study, the mechanical strengths were modeled using a factorial plan 22,giving a quantification of the individual effect of both introduction of the RAP and the reinforcement and thecombined effect, on response in terms of compressive strength and splitting tensile strength. Established modelpredicted the mechanical strength of a hardened concrete, whatever the RAP content and whatever the PFreinforcement content.
Study and modeling of the compressive and splitting tensile strengths of polypropylene fiber reinforced concrete containing recycled asphalt pavement
LARBI, Rim (author) / MORSLI, Meriem (author) / BENSAIBI, Mahmoud (author) / BALI, Abderrahim (author) / BENYOUSSEF, El Hadi (author)
2017-03-31
Journal of Materials and Applications; Vol 6 No 1 (2017); 13-22 ; 2051-7750
Article (Journal)
Electronic Resource
English
DDC:
690
Tensile and Compressive Strengths of Polypropylene Fiber Reinforced Concrete
| British Library Conference Proceedings | 1994
| British Library Online Contents | 2014