Influence of recycled fibre reinforcement on plastic shrinkage cracking of cement- based composites

Author(s): Ida Bertelsen, L. M. Ottosen, G. Fischer
Paper category: Proceedings
Book title: Proceedings of the International Conference on Sustainable Materials Systems and Structures (SMSS2019) Durability, Monitoring and Repair of Structures
Editor(s): Ana Baričević, Marija Jelčić Rukavina, Domagoj Damjanović, Maurizio Guadagnini
ISBN: 978-2-35158-217-6
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication year: 2019
Pages: 87-94
Total Pages: 813
Language: English

Abstract: Recycled polyethylene (R-PE) fibres from discarded waste fishing nets are used as fibre reinforcement in cement-based mortars for control of plastic shrinkage cracking. A thin, fresh mortar overlay is cast directly on top of a restraining concrete substrate and placed under controlled environmental conditions. Mortar overlays with the addition of R-PE fibres up to 2.0 vol% were tested and compared to mortar overlays with a 0.2 vol% addition of commercially available PP fibres. The cracking behaviour is monitored using a digital image correlation (DIC) technique allowing measurements of strain and displacement fields on the overlay surface. The R-PE fibres were successful in controlling the plastic shrinkage cracking of restrained mortar overlays for fibre fractions of 2.0 vol%.

Online publication :2019
Publication type : full_text
Public price (Euros) : 00

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