Abstract
This study evaluates and discusses the effect of polyethylene terephthalate (PET) aggregate volumes on the main fracture characteristics and ductility of lightweight concrete (LWC), involving the experiments of 80 notched beams with different PET aggregate volumes. The parameters were evaluated by the size effect law method (SEM) and boundary effect model method (BEM). The results indicated that with increase in PET aggregate volume from 0% to 15%, (a) the fracture energy increases by 54% due to the remarkable difference in dimension of fractal surface, (b) behaviour LWC specimens govern by strength criterion, (c) LWC ductility, determined by Cf in SEM and a∞∗ in BEM increases, (d) the brittleness number decreases by 35%, (e) the fracture surface of LWC is tortuous and irregular, (f) tensile strength, as a key material characteristic in BEM, decreases by 18%. The results of this study may be an effective step towards development of design codes based on fracture mechanics for sustainable LWC members.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
