Compressive Strength of Steel Fiber Reinforced Concrete
Indah Permatasary (a*), Mardiana Oesman (a), Suharwanto (b), Ambar Susanto (a)

a) Department of Civil Engineering, Faculty of Engineering, Polytechnic State of Bandung
Jl. Gegerkalong Hilir, Bandung Barat 40559, Indonesia
*mardianaoesman[at]polban.ac.id
b) Department of Civil Engineering, Faculty of Engineering, University of Wiralodra
Jl. Ir. H Juanda KM. 03, Indramayu 45213, Indonesia

Abstract

Steel Fiber Concrete (SFC) consists of hydraulic cement material, coarse aggregate, fine aggregate, and steel fibers dispersed within the concrete mix. Steel fibers serve as an alternative additional material to address the issue of cracking that commonly occurs in reinforced concrete. The performance capability of steel fibers is combined with the concept of Self-Compacting Concrete (SCC), which is then referred to as Self-Compacting Steel Fiber Concrete (SC-SFC). A study was conducted on the compressive strength of concrete, with cylindrical test specimens measuring 100 x 200 mm, with three samples each tested at 7 days and 28 days of age. The SFC mix design was based on previous research with a water/binder ratio (w/b) of 0.45 and the addition of 2% steel fiber by volume fraction. The steel fibers used were produced by PT. Bakaert, with a length of 30 mm and hooked ends, type 80/30BGP. The results showed that the average compressive strength of SFC increased by 31.7% from 7 days to 28 days, with a compressive strength value (f^c) of 20.1 MPa.

Keywords: Steel Fiber Concrete (SFC)- Self-Compacting Concrete (SCC)- Compressive strength

Topic: Materials Science