Comparative Study on the Flexural Behavior of BTRC and CTRC Panels
摘要
Sustainability has become a driving force in the construction industry to bring out novel technologies and low carbon innovative materials to use. Textile Reinforced Concrete (TRC) is a cement based composite material that uses textiles meshes as non-metallic reinforcement. In the present study, the flexural behavior of Carbon Textile Reinforced Concrete (CTRC) panels and Basalt Textile Reinforced Concrete (BTRC) panels are investigated and compared for their behavior. Four-point bending were experimentally performed for these panels. The main aim of the study was to correlate on the interface and matrix properties with the crack pattern, mode of failure and bending stiffness. The results show that for same mesh size of 25 mm and for same thickness of the panels as 30 mm with 4 layers of textiles equally spaced, the specimens showed a multiple flexural crack, and most cracks appeared in the pure bending zone. The BTRC panels exhibited excellent flexural bearing capacity, good ductility and higher toughness in comparison to CTRC. It was observed that with the increase in the textile layers within the panels had enhanced performance. The stiffer basalt textiles improved the flexural capacity by 15% more that carbon textiles. The performance of basalt textiles and carbon textiles used as reinforcement for the panels are quite comparable, both in terms of its flexural behavior highlighting the possibility of using basalt textiles to be a valid alternative to carbon, without significant loss of performance, and it provides less environmental impact and carbon footprint.