Thermomechanical Behavior of Textile Reinforced Cementitious Composites Subjected to Fire

Abstract

The mechanical behavior of textile reinforced cementitious composites (TRC) has been a topic of wide investigation during the past 30 years. However, most of the investigation is focused on the behavior under ambient temperatures, while only a few studies about the behavior under high temperatures have been conducted thus far. This paper focused on the thermomechanical behavior of TRC after exposure to fire and the residual capacity was examined. The parameters that were considered were the fiber material, the thickness of the concrete cover, the moisture content and the temperature of exposure. The specimens were exposed to fire only from one side and the residual strength was measured by means of flexural capacity. The results showed that the critical factor that affects the residual strength was the coating of the textiles and the law of the coating mass loss with respect to temperature. The effect of the other parameters was not quantified. The degradation of the compressive strength of TRC was quantified with respect to temperature. It was also concluded that a highly asymmetrical design scheme might lead to premature failure.

Editorial on Special Issue “Textile-Reinforced Cement Composites: New Insights into Structural and Material Engineering”

“…The effect of an elevated temperature (120 • C and 200 • C) on the shear bond to masonry is treated in the feature paper by Askouni, Papanicolaou, and Kaffetzakis [7], using AR glass textiles with a normal weight and a lightweight mortar. The degradation of TRCs with SBR-coated carbon or AR glass textiles is treated in the paper by Kapsalis, El Kadi, Vervloet, De Munck, Wastiels, Triantafillou, and Tysmans [8].…”

Textiles and Fabrics for Enhanced Structural Glass Facades: Potentials and Challenges

“…Glass-fiber reinforced polymer (GFRP) components represent one of the most efficient solutions, due to their high tensile resistance, but the implementation of novel materials with enhanced benefits is also of interest [30][31][32][33][34], and attracted in the last few years the attention of several research investigations inclusive of experimental, analytical and finite element (FE) numerical studies. The thermo-mechanical structural behaviour of these assemblies under unfavourable conditions can be also relevant and should be properly taken into account [35,36]. Textile reinforced concrete can then be efficient also for improving the capacity of sandwich panels [37].…”

Use of Cement Suspension as an Alternative Matrix Material for Textile-Reinforced Concrete

“…In load-bearing structures, marginal TRC application issues arise from the ability to withstand high temperatures during fire. In previous work the main weakness of TRC was identified as the behavior of the homogenized carbon-fiber reinforcement with epoxy resin matrix at elevated temperatures [ 8 , 9 ]. Fire experiments showed that the load-bearing capacity of TRC at elevated temperatures depends on the interaction between the textile reinforcement and high-performance concrete (HPC).…”