A review on various properties of textile reinforced concrete

Abstract

Carbon emission has been one of the most threatening problems in our environment. So it is necessary to develop new technologies that concentrate mainly on durability and sustainability of a structure without reducing various strength parameters. Textile reinforced concrete employs fibres that are provided as reinforcement instead of steel bars. This study elaborates about the properties of textile reinforced concrete. Usage of such fibres will be helpful to mitigate corrosion due to steel bars. The fibres are usually light in weight when compared to conventional steel rods. These fibres have less thickness but exhibits good strength and ductility. Experimental studies on beams proved that polymer-coated textiles showed increased load- carrying capacity. It was observed that the bonding quality had a great influence on the flexural behaviour of the same. When four- point bending test was carried out for samples with carbon textile fabric reinforcement, expected results were not obtained. The ultimate capacity was slightly over- predicted in the above mentioned case. It was found that textile fibre reinforcement reduced 60% of concrete in a structural element when compared to use of steel reinforcement. One of the issues reported was the bond between the yarn and the concrete matrix. The outer filaments of the yarn had good bonding with concrete because of its direct contact. On the other hand, the inner filaments will be conceded from concrete resulting in non– uniform strain distribution. A pedestrian bridge of span 15 m and width 3 m in Germany was constructed using Carbon Concrete Composite. Further studies proved that Alkali Resistant glass fibres had better cost efficiency and improved tensile strength. Because of its light weight, transportation costs will also reduce. Textile reinforced concrete has proven to be a cost- efficient composite material.