Shear behaviour and mechanical properties of steel fibre-reinforced cement-based and geopolymer oil palm shell lightweight aggregate concrete

The shear behaviour and mechanical properties (compressive, splitting tensile and flexural strengths) as well as the flexural toughness of steel fibre-reinforced cement-based and geopolymer oil palm shell lightweight aggregate concrete (OPS LWAC) were experimentally investigated in this paper. Steel fibres were added at various volume fractions for the cement-based OPS LWAC (0%, 0.5% and 1.0%) and geopolymer OPS LWAC (0%, 0.5%). Test results showed that steel fibre improved the mechanical properties of concrete, particularly for the splitting tensile strength whereas flexural toughness enhancement with the use of steel fibres was more evident for the cement-based OPS LWAC than the geopolymer concrete. The shear resistance of OPS LWAC beams was also found to improve with the addition of steel fibres and existing prediction equations for shear capacity of steel fibre-reinforced lightweight concrete was determined to be conservative for the steel fibre-reinforced cement-based and geopolymer OPS LWAC.

[1]  U. J. Alengaram,et al.  Compressive behaviour of lightweight oil palm shell concrete incorporating slag , 2015 .

[2]  R. N. Swamy,et al.  INFLUENCE OF STEEL FIBERS ON THE SHEAR RESISTANCE OF LIGHTWEIGHT CONCRETE I-BEAMS , 1993 .

[3]  G. Campione,et al.  Mechanical properties of steel fibre reinforced lightweight concrete with pumice stone or expanded clay aggregates , 2001 .

[4]  Mehmet Gesoǧlu,et al.  Fracture behavior and mechanical properties of concrete with artificial lightweight aggregate and steel fiber , 2015 .

[5]  M. H. Zhang,et al.  Flexural toughness and impact resistance of steel-fibre-reinforced lightweight concrete , 2004 .

[6]  Oğuz Akın Düzgün,et al.  Effect of steel fibers on the mechanical properties of natural lightweight aggregate concrete , 2005 .

[7]  G. Campione.  Flexural and Shear Resistance of Steel Fiber–Reinforced Lightweight Concrete Beams , 2014 .

[8]  Sivakumar Anandan,et al.  Flexural Toughness Properties of Reinforced Steel Fibre Incorporated Alkali Activated Slag Concrete , 2014 .

[9]  R. Narayanan,et al.  USE OF STEEL FIBERS AS SHEAR REINFORCEMENT , 1987 .

[10]  Hai-tao Wang,et al.  Experimental study on static and dynamic mechanical properties of steel fiber reinforced lightweight aggregate concrete , 2013 .

[11]  Linjian Wu,et al.  Investigation on flexural toughness evaluation method of steel fiber reinforced lightweight aggregate concrete , 2017 .

[13]  Mohamed K. Ismail,et al.  Shear Behavior of SCC Beams with Different Coarse-to-Fine Aggregate Ratios and Coarse Aggregate Types , 2015 .

[14]  Susan A. Bernal,et al.  Performance of an alkali-activated slag concrete reinforced with steel fibers , 2010 .

[15]  Mohd Zamin Jumaat,et al.  Engineering properties and fracture behaviour of high volume palm oil fuel ash based fibre reinforced geopolymer concrete , 2016 .

[16]  V. Bindiganavile,et al.  Shear response of lightweight steel fiber reinforced concrete members without stirrups , 2015 .

[17]  Mohd Zamin Jumaat,et al.  A Review on the Use of Agriculture Waste Material as Lightweight Aggregate for Reinforced Concrete Structural Members , 2014 .

[18]  H. Yun,et al.  Mechanical Properties and Eco-Efficiency of Steel Fiber Reinforced Alkali-Activated Slag Concrete , 2015, Materials.

[19]  V. T. Babar,et al.  SHEAR STRENGTH OF STEEL FIBER REINFORCED CONCRETE BEAM WITHOUT STIRRUPS , 2015 .

[20]  Chung-Ho Kim,et al.  Concrete Shear Strength of Normal and Lightweight Concrete Beams Reinforced with FRP Bars , 2014 .

[21]  Mohd Zamin Jumaat,et al.  The effect of steel fibres on the enhancement of flexural and compressive toughness and fracture characteristics of oil palm shell concrete , 2014 .

[22]  Soon Poh Yap,et al.  The effect of aspect ratio and volume fraction on mechanical properties of steel fibre-reinforced oil palm shell concrete , 2015 .

[23]  Sung-Gul Hong,et al.  Shear Testing of Steel Fiber-Reinforced Lightweight Concrete Beams without Web Reinforcement , 2011 .

[24]  A. Leung,et al.  Influence of steel fibres on strength and ductility of normal and lightweight high strength concrete , 2002 .

[25]  Ruby Abraham,et al.  Durability characteristics of steel fibre reinforced geopolymer concrete , 2015 .

[26]  T. Yen,et al.  Shear Behavior of Reinforced Concrete Beams Made with Sedimentary Lightweight Aggregate without Shear Reinforcement , 2009 .

[27]  Samir A. Ashour,et al.  Shear Behavior of High-Strength Fiber Reinforced Concrete Beams , 1992 .

[28]  U. J. Alengaram,et al.  Material and structural properties of waste-oil palm shell concrete incorporating ground granulated blast-furnace slag reinforced with low-volume steel fibres , 2016 .

[29]  Stephen J. Foster,et al.  The behaviour of steel-fibre-reinforced geopolymer concrete beams in shear , 2013 .