Assessing amid Water absorption and Compressive strength of Hybrid Textile Reinforced Concrete

Textile-reinforced concrete (TRC) is a material that is acquiring new ground in the construction field. It eliminates the problem of corrosion by using non-corrosive textile fibre mesh materials, helps in manufacturing lightweight structures and reduces CO₂ emission. The paper aims to find the Compressive Strength (CS) and Water Absorption (WA) properties of Hybrid interlayer TRC with 3, 4 & 5 layers of hybrid combinations with Aramid and Alkali-Resistant (AR) glass fibre meshes reinforcement compared to identical fibre mesh reinforced TRC and reference mix cementitious matrix composition after 28 and 180 days of water curing. Based on the studies it was found that hybrid TRC improved the CS irrespective of layers by about 2 and 1.2 times when compared to reference mix and identical fibre mesh TRC. Four layers of an alternative arrangement of a combination of AR-Glass and Aramid fibre mesh reinforcement (4L4) is attributed to the maximum CS of about 99.12 MPa and increased WA of about 0.39% to that of the least water-absorbed combination (5L16). Even though reduced pores and densification of composite is achieved in three-layer combinations it has a reduced CS of 22.3% at 180 days compared to the 4L4 combination. On the other hand, combinations and identical matrix of 5 layers of fibre mesh reinforced TRC showed a loose and porous behavior due to inadequate bonding between the fibre meshes and the cementitious matrix but a high percentage of volume-fraction of fibres resulted in reduced WA in these composites with also 21.2% reduction in CS accordingly.