Abstract:
Inspired by the spiral layered structure of mantis shrimp, fabric reinforced concrete was prepared by laying fabric in spiral way, the effect of fabric spiral angle on the static and dynamic mechanical properties of basalt textile reinforced concrete is studied. In order to study the effect of different fabric spiral angles on the mechanical properties of basalt textile reinforced concrete (BTRC), the static tensile test and digital image analysis technique were used to obtain the crack and strain of BTRC with different spiral angles, and the low velocity impact test was used to evaluate the impact resistance of BTRC with different spiral angles. The results show that the maximum tensile strength of BTRC specimens with spiral angle of 15°, 30° and 45° decreased by 51%, 62% and 52% respectively compared with that of BTRC specimens with spiral angle of 0°, the crack number and toughness also decreased first and then increased, but the ultimate tensile strain increased by 17%, 26% and 43%, respectively. At 56.64 J impact energy, the maximum impact force of each spiral angle specimens does not vary much. But the energy absorption of BTRC specimens with spiral angle of 45° increased by 17.61% compared with that of BTRC specimens with spiral angle of 0°. This research is helpful to develop a new way of fabric laying and further strengthen the mechanical properties of textile reinforced concrete.