Experimental Investigation on Mechanical Properties of Shape Memory Alloy Fibre-Reinforced ECC Composite

Abstract

An innovative hybrid engineered cementitious composite (HECC-SMAF) incorporating randomly dispersed polyvinyl alcohol (PVA) and shape memory alloy short fibres (SMA) has been developed in this study. The behaviour of the composite produced with and without NiTi-SMA and/or polyvinyl-alcohol (PVA) short fibres was investigated. The experimental results show that utilizing a combination of those fibres can affect the composite by a slight to no increase in compressive strength while it can enhance the flexural capacity by up to 144%. Also, a general reduction in workability was observed due to incorporating those fibres in the composite compared to that of the ECC matrix mixture.