Textile Reinforced Concrete (TRC) can be used as independent
structural elements due to its high loading capacity and proper to
product light weight and thin walled structural elements. In this
study, the bending behavior of TRC plates that reinforced with dry
carbon fiber textile and exposed to high temperatures was
experimentally studied under 4-points bending loading. The
examined parameters were; (a) number of textile fiber
reinforcements layers 1, 2 and 3 layers; (b) level of high
temperatures 20°C, 200°C, 300°C, and 400°C. Firstly, the
mechanical properties of the cementitious matrix and the tensile
properties of TRC coupons at each predefined temperature were
evaluated. The results showed that the ultimate tensile stress of
the TRC coupons did not affect up to 200°C, however, a significant
reduction observed at 300°C and 400°C by 19% and 24%
respectively. Regarding the compressive strength and flexural
strength of the cementitious matrix, the degradation was not
severe until 200°C, while it became critical at 400 °C (23% and
22% respectively). The result of the bending of TRC plates showed
that doubling and tripling textile fiber reinforcements layers
improved the flexural loading. In general, increasing the level of
temperatures resulted in decrease in the flexural capacity of TRC
plates. The highest decrease recorded for the specimen reinforced
with 1-layer of carbon fiber textile subjected to 400 °C and was
33%.
Multifunctional Cement Composites Strain and Damage Sensors Applied on Reinforced Concrete (RC) Structural Elements
