Investigations on ductile behaviour of hybrid fibre reinforced concrete elements and frames

Abstract

The concept of using fibres to reinforce a brittle material is not new According to American Concrete Institute ACI manual of concrete practice the use of two or more types of fibres in a concrete mix is considered promising An appropriate combination of fibres produces a better composite concrete than individual fibres for special applications The various fibres used in concrete are Steel Glass Carbon Polypropylene and Polyolefin The combination of steel and polyolefin appears to be the currently developing choice as revealed by a review of recent literature In the present research experimental studies were carried out to investigate the ductile behaviour of Hybrid Fibre Reinforced Concrete HFRC elements of grade M25 using Steel and Polyolefin fibres The effect of hybrid fibres in Beams Slabs and Frames with and without infills was studied experimentally newline