Experimental Investigation Of Basalt Textile Reinforced Engineered Cementitious Composite Under Apparent Hoop Tensile Loading

Over the past decade, conventional mortar reinforced by textile has shown a promising performance as a composite material for repairing of both concrete and masonry structures compared with that of reinforced by discrete fibres. However, the relatively brittleness of the conventional mortar adversely affects the efficiency of the textile reinforced mortar (TRM) composite system due to the premature textile fracture. Engineered cementitious composite (ECC) is a well-known high-performance cementitious composite for its superior tensile strain-hardening properties and high impact resistance compared with both conventional mortar and discrete fibres reinforced mortar. In this paper, the behaviour of ECC reinforced by basalt textile was investigated and compared with that of TRM technique. The behaviour of ring-shaped specimens subjected to apparent hoop tensile loading was studied. The response characteristics including: tensile strength, failure modes, energy absorption, toughness index, strain behaviour, and the correlations between tensile strength and energy absorption were investigated. The results revealed that ECC is a promising material that can effectively enhance the performance of textile reinforced mortar. Replacing conventional mortar by ECC resulted in a notable increase in the peak tensile load by 241% indicating a dramatic effect of the ECC-based matrix.