Durability of Textile Reinforced Concrete: Existing Knowledge and Current Gaps

Abstract

This paper aims to provide a review of the current literature on the durability of textile-reinforced concrete and mortar (TRC/TRM) composites. Most previous studies have focused on the role of chemical attacks, freeze-thaw conditions, and high temperatures on the mechanical performance of these composites. Information on the long-term performance of TRCs under synergistic action of mechanical and environmental loads is scarce. Considering the variety of fabrics and matrices used for the production of TRC composites, the existing data are still very limited and comprehensive studies are needed in this field. Additionally, due to the lack of standard procedures, different approaches are often followed for durability or post-ageing mechanical tests, or sufficient data on the curing and post-ageing preparation procedures followed are not provided. These have led to incompatibility of the existing data and in some cases contradictory results on the durability of these materials.

Experimental investigation on salt frost scaling of textile‐reinforced concrete

“…Several investigations have been conducted under different exposure conditions. These indicate a minor influence of frost exposure on the bond and tensile bearing behavior of TRC members 28–30 …”

“…These indicate a minor influence of frost exposure on the bond and tensile bearing behavior of TRC members. [28][29][30] However, frost exposure causes structural damage to concrete, and in particular, scaling of the concrete surface if de-icing agents (e.g., NaCl) are used. In case of concrete used in infrastructural applications, this is a crucial environmental impact.…”

A Review on the Utilisation of Silica Fume and Metakaolin as Novel Grout Materials

“…Silica fume addition affects the permeability and strength. Additionally, it has been demonstrated that fly ash and metakaolin have a significant influence on durability [26].…”

“…Silica fume addition affects the permeability and strength. Additionally, it has been demonstrated that fly ash and metakaolin have a significant influence on durability [26]. Metakaolin as a supplement in a grout in soil nailing applications ensures safety, quality, reliability and at the same time nontoxic and eco-friendly, but decrease in mechanical performance due to the huge volume decrease of cement content (-60%).…”

Influence of freeze–thaw cycles on the pull-out response of lime-based TRM composites

“…These studies mainly focused on the tensile response, flexural behavior, and TRM-to-substrate bond performance under high-temperature, salt crystallization, and alkaline environments [14][15][16][17][18][19][20].…”