A Comparative Study on the Properties of Natural, Synthetic and Steel Fibre Reinforced Concrete

Abstract

The use of fibers in concrete at relatively low volume fraction has been gaining rising popularity among researchers for the recent years due to its availability, ability to enhance overall performance and cost effectiveness. Fibers are mainly classified according to their origin. Numerous researches have been carried out with natural and artificial fibers separately to elucidate its effect on the various parameters of concrete. However, a little finding is available about the comparative study among these three distinct types of fibers affecting concrete properties. In this study coconut coir, nylon thread and low-cost galvanized iron wire have been selected as natural, synthetic and steel fibers respectively. Coconut coir and nylon thread were mixed at three different percentage of 1.5%, 2.5% and 3.5% respectively by weight of cement. Steel fibre contents 1.5%, 2.5% and 3.5% respectively by weight of concrete. The results were obtained through an experimental investigation that shows the influence of natural, synthetic and steel fibers on rheological and mechanical properties of concrete. Optimum fibre content was 2.5% where steel fibre shows a maximum 17% and 30% rise in compressive and flexure strength respectively. On the other hand, fibres play a great role with its combining effect on the post cracking ductility and energy absorption of concrete.

Natural and Artificial Fibre Reinforced Concrete: A State-of-art Review

“…The researchers found the optimum dosage of hybrid fiber as 0.3% of PVA and 0.2% coir (20). Islam et al (21) have investigated the mechanical and rheological properties of concrete with nylon, iron, and coir as steel, synthetic and natural fiber. The result shows that the addition of fiber causes a significant reduction in the workability of concrete.…”

“…However, these three fiber shows lower compressive strength at the beginning (3-7 days) days due to weak bonding of materials. From the study, it was evident that the addition of fiber enhanced the ductility after the crack and the capacity of energy absorption (21). The physical, mechanical, and durability properties of different natural and synthetic fiber-infused concrete were examined by More and Subramanian (22).…”

The structural behaviour of sustainable concrete that incorporate use of agro-industrial waste and recyclable construction materials

“…As a consequence, there is a paucity of innovative ecofriendly pozzolanic substances that could be used to improve toughness of concrete. Coal bottom ash in concrete reduces debris production and carbon exhalation out of fossil generation power plants significantly (A. Islam et al, 2021). The coir fibers are accessible in large quantities easily (M. A.…”

Mechanical Characterization of Precast Self-Compacting Concrete Shell Beam Incorporating Grounded Coal Bottom Ash and Coir Fibre

“…Coal bottom ash in concrete reduces debris production and carbon exhalation out of fossil generation power plants signi cantly (A. Islam et al, 2021). The coir bers are accessible in large quantities easily (M. A.…”