Self-Healing Potential and Post-Cracking Tensile Behavior of Polypropylene Fiber-Reinforced Cementitious Composites
| dc.contributor.author | Garg, Mohit | |
| dc.contributor.author | Azarsa, Pejman | |
| dc.contributor.author | Gupta, Rishi | |
| dc.date.accessioned | 2021-05-18T20:48:42Z | |
| dc.date.available | 2021-05-18T20:48:42Z | |
| dc.date.copyright | 2021 | en_US |
| dc.date.issued | 2021 | |
| dc.description.abstract | The use of synthetic fibers as reinforcement in fiber-reinforced cementitious composites (FRCC) demonstrates a combination of better ductile response vis-à-vis metallic ones, enhanced durability in a high pH environment, and resistance to corrosion as well as self-healing capabilities. This study explores the effect of macro- and micro-scale polypropylene (PP) fibers on post-crack energy, ductility, and the self-healing potential of FRCC. Laboratory results indicate a significant change in fracture response, i.e., loss in ductility as curing time increases. PP fiber samples cured for 2 days demonstrated ductile fracture behavior, controllable crack growth during tensile testing, post-cracking behavior, and a regain in strength owing to FRCC’s self-healing mechanism. Different mixes of FRCC suggest an economical mixing methodology, where the strong bond between the PP fibers and cementitious matrix plays a key role in improving the tensile strength of the mortar. Additionally, the micro PP fiber samples demonstrate resistance to micro-crack propagation, observed as an increase in peak load value and shape deformation during compression and tensile tests. Notably, low volume fraction of macro-scale PP fibers in FRCC revealed higher post-crack energy than the higher dosage of micro-scale PP fibers. Lastly, few samples with a crack of <0.5 mm exhibited a self-healing mechanism, and upon testing, the healed specimens illustrated higher strain values. | en_US |
| dc.description.reviewstatus | Reviewed | en_US |
| dc.description.scholarlevel | Faculty | en_US |
| dc.identifier.citation | Garg, M., Azarsa, P., & Gupta, R. (2021). Self-Healing Potential and Post-Cracking Tensile Behavior of Polypropylene Fiber-Reinforced Cementitious Composites. Journal of Composites Science, 5(5), 1-20. https://doi.org/10.3390/jcs5050122. | en_US |
| dc.identifier.uri | https://doi.org/10.3390/jcs5050122 | |
| dc.identifier.uri | http://hdl.handle.net/1828/12985 | |
| dc.language.iso | en | en_US |
| dc.publisher | Journal of Composites Science | en_US |
| dc.subject | fiber-reinforced cementitious composites (FRCC) | |
| dc.subject | self-healing (SH) | |
| dc.subject | polypropylene fiber | |
| dc.subject | tensile strength | |
| dc.subject | concrete cracking | |
| dc.subject.department | Department of Civil Engineering | |
| dc.title | Self-Healing Potential and Post-Cracking Tensile Behavior of Polypropylene Fiber-Reinforced Cementitious Composites | en_US |
| dc.type | Article | en_US |