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Title: Structural properties of fiber-reinforced concrete containing thermosetting polymer plastic wastes
Authors: Raad, Dona
Assaad, Joseph 
Affiliations: Department of Civil and Environmental Engineering 
Keywords: Bond strength
Shear strength
Steel fiber
XPE waste
Issue Date: 2022
Publisher: Taylor & Francis Online
Part of: Journal of Sustainable Cement-Based Materials
Start page: 1
End page: 16
Limited studies investigated the structural properties of concrete containing cross-linked polyethylene (XPE) plastic wastes derived from thermosetting polymers. The XPE wastes cannot be recycled given their infusible and insoluble natures in the melt state, reflecting the need for sustainable disposal alternatives in the construction industry. The main objective of this paper is to assess the effect of XPE on the bond to embedded reinforcement and shear strength of reinforced concrete beams without stirrups. Test results showed that the ascending part of the bond stress vs. displacement curves is softened with XPE additions, which led to reduced ultimate bond strength to embedded rebars. Such additions also reduced the ultimate shear load and post-diagonal cracking resistance of reinforced concrete beams. The incorporation of 0.5% to 1% steel fibers, by volume, was efficient to delay the formation of cracks, which improved the concrete bearing capacity and aggregate interlock component of shear strength.
ISSN: 21650373
DOI: 10.1080/21650373.2021.1899998
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Civil and Environmental Engineering

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