Influence of Fibers on Fresh and Mechanical Properties of (FRC) Fiber Reinforced Concrete, A Step Towards Sustainability

Abstract

Mostly used material is concrete which has versatile quality for construction works. Fibrous concrete have significant factor that improve the scale and value to concrete for humid environments with significant role. Day by day abundant demand and use of concrete is increasing. It is considered as a 2nd largest building material due to the major productivity. By the use of fibrous concrete, some bonding and environmental issues have been addressed. Keeping in this view, an experimental based study is conducted to evaluate the strength of fiber reinforced concrete at different percentages 0%, 0.5%, 1.0%, 1.5% and 2.0%. All percentages are added by the weight of concrete with all fibers. In this connection, one hundred and fifty-three cylinders of five mixes are prepared. Workability checked of fresh concrete during the pouring of concrete cylinders. Poured cylinders’ samples are left for different curing ages at 7 and 28 days. One hundred and two cylinders for compression at 7 and 28days but fifty-one cylinders for split tensile test at 28days with all fibers i.e. glass fiber, steel fiber, coconut fiber and polypropylene fiber. After curing, compression and split tensile tests are performed to check the strength of hardened concrete. Workability of five mixes lies between 40-90mm.Fibrous concrete is suitable for humid environment where high strength and voids less concrete are required. Addition of fibers in concrete may improves the strength parameters as well as to increase the bonding and tensile properties of concrete. It reduces the quantity of water to be used in concrete. Also the use of different types of fibers has been proved to be economical and is considered as environmental friendly construction material.

Optimizing Local Resources in Pakistan to Produce High-Strength Reactive Powder Concrete

“…The brittleness of high-strength concrete is addressed by adding steel fibers to the RPC matrix to enhance its flexibility. To boost toughness without considerably reducing the material's strength, modest quantities of fibers-typically between 1% and 6% by volume-are included into the concrete mixture (Ahsan et al, 2023). The parameters of steel fibers used in RPC are generally length, diameter, length-to-diameter ratio, tensile strength, and density (fig.…”