The Reinforced Concrete Beam Deflection and Cracking Behavior With Additional Fiber Steel

Abstract

<jats:p>The classic theory mentions that the assessment of deflection and crack width should be taken to minimize those two behaviors. This research itself has the objective to examine whether the additional fiber steel and increased reinforcement ratio has any significant impact on the deflection and existing crack width. This test used the reinforced concrete beams with a size of 15 cm x 25 cm x 180 cm which placed on a simple pedestal. The test was done gradually in every 108 kg until the reinforced yield reached. The fiber increased from 0%, 1.57%, 3.14% and 4.71% while the performance rebar ratio increased from 2 # 10, 2 # 12, and 2 # 14. The result shows that additional 4.71% of maximum fiber decrease compressive strength and rupture modulus while the tensile strength increased. The additional fiber reached a maximum in 4.71% and the additional diameter of 10 mm, 12 mm, and 14 mm increased the deflections and crack width.</jats:p>

Effect The Use of Steel Fibers (Dramix) on Reinforced Concrete Slab

“…One way to improve the mechanical properties of concrete is to innovate by adding micro reinforcement like fiber. The addition of fiber has an impact on increasing tensile strength and minimizing crack width on reinforced concrete structures (Ananda, Soehardjono, Zacoeb, & Saroji, 2017). Steel fibers can improve the structural strength to reduce in the heavy steel reinforcement requirement.…”