Mechanical performance of steel fibre reinforced rubberised concrete for flexible concrete pavements

مقال فى مجلة

2018

تم النشر فى: https://doi.org/10.1016/j.conbuildmat.2018.04.010

Alsaif, Abdulaziz . 2018

This work aims to develop materials for flexible concrete pavements as an alternative to asphalt concrete
or polymer-bound rubber surfaces and presents a study on steel fibre reinforced rubberised concrete
(SFRRuC). The main objective of this study is to investigate the effect of steel fibres (manufactured
and/or recycled fibres) on the fresh and mechanical properties of rubberised concrete (RuC) comprising
waste tyre rubber (WTR). Free shrinkage is also examined. The main parameters investigated through ten
different mixes are WTR and fibre contents. The results show that the addition of fibres in RuC mixes with
WTR replacement substantially mitigates the loss in flexural strength due to the rubber content (from
50% to 9.6% loss, compared to conventional concrete). The use of fibres in RuC can also enable the development
of sufficient flexural strength and enhance strain capacity and post-peak energy absorption behaviour,
thus making SFRRuC an ideal alternative construction material for flexible pavements.