Exploring the synergy of textiles, fibers and high-performance inorganic matrices on the mechanical performance of TRC composites

Abstract

The synergy between textile and fibers reinforcement systems and high strength cementitious matrices offers the development of advanced and sustainable thin concrete structures. The focus has been on the effect of the properties of the textile, fibers, or the concrete on the structural mechanism of the elements. This study aims to enhance the understanding of the unique mechanisms of these composites by exploring the mutual effects of the reinforcement systems (textiles and/or fibers) and the matrix compositions (Portland cement—PC or Magnesium Phosphate cement—MPC) on the mechanical behavior. The study involves micro- and macro-scale experimental investigations. Nine different compositions are investigated under uniaxial and flexural loading setups. The study demonstrated that by adequate composition of fibers, textile, and advanced cementitious technologies and, especially, by leveraging synergies between them, an enhanced composite can be achieved. Due to the improved rheological and strength properties, MPC is a preferable matrix in case of TRC elements. The effectiveness of the reinforcement system is governed by a tradeoff mechanism between the elastic modulus and the compactness of the yarns. Textiles that consist of both AR-glass and carbon yarns can benefit from the advantages of the two mechanisms.