Comparison of Material Behavior of Steel and Synthetic Fibers in Dry Cast Application.

摘要

This study presents the comparison of the test results for material behavior for zero slump drycast steel and synthetic fiber reinforced concrete. ASTM C1609 flexural beam test and ASTMC39 compressive strength cylinder tests were conducted for various fiber dosages of each typesynthetic and steel fibers. Synthetic and steel fiber dosages ranged from 4 lbs/yd3 to 18 lbs/yd3and 22 lbs/yd3 to 88 lbs/yd3, respectively. From these tests, material properties were foundincluding; compressive strength, first-peak load, peak load, modulus of rupture and specimentoughness. ASTM beam load- deformation plots were obtained for each fiber beam to show thefiber behavior and strengthening after the initial crack.