An Experimental Investigation on Banana Fibre Concrete with Nano Silica

Abstract

The combined impact of using banana fibres (BF) and nano-silica (NS) on the mechanical properties of hardened concrete is examined in this study. In order to partially replace cement, NS has been used in amounts of 0, 2, 2.5, 3, 3.5, 4, and 4.5% by weight, and BF has been used in amounts of 1, 2, 3, 4, and 6% by volume. Banana fibres measuring 40 mm in length were used in the current experiment. A variety of NS and BF combinations are used to calculate the test values for compression strength, split tensile strength, and pulse velocity. Due to its tiny particle size, nano-silica can change the properties of concrete by changing its microstructure. Because of NS's high pozzolanic activity, which supports the generation of more C-S-H gel in the presence of nanoparticles, a noticeable improvement in the strength qualities of concrete is shown when NS is utilised. The strength and longevity of the concrete will be greatly enhanced by the use of NS. On the other hand, the inclusion of banana fibres to the concrete gradually reduces permeability and improves crack resistance.

Examining Mechanical Property Differences in Concrete with Natural and Synthetic Fiber Additives

“…In a general sense, both water hyacinth fiber and banana fiber, extracted from the banana plant, share a common composition characterized by hollow cellulose fibrils interwoven within a matrix of lignin, cellulose, and hemicellulose [19]. Cellulose and hemicellulose influence the tensile strength and moisture absorption properties of these materials, whereas lignin contributes to their resistance against biodegradation [20]. Moreover, the microstructures and inherent traits of plant fibers, including thickness, density, porosity, rigidity, resistance, conductivity, and air permeability, are instrumental in shaping their mechanical and thermal properties.…”

Influence of Nano Silica On Properties of Cement Concrete

“…Between 0.2 and 0.3 microns in size, nanosilica can replace 1% to 6% of cement and improve several qualities, including initial and final setting periods, up to a 5% addition; after that, strength decreases. Mohan Raj et.al., [3] Mar 2019 This study investigates the impacts of adding nano-Silica at 3%, 3.5%, and 10% for the replacement of cement in M20-grade concrete. Compressive strength is increased while density is decreased by nanosilica, according to tests on tensile, flexural, and compressive strengths.…”