A STUDY ON THE BEHAVIOR OF STEEL FIBER REINFORCED CONCRETE SUBJECTED TO SPLITTING TENSION TEST

In this experimental investigation, an attempt has been made to study the behavior of steel fiber reinforced concrete composite subjected to splitting tension. In its most common form, a cylinder is compressed along two opposite generators until it splits across the diametrical plane connecting the loading strips. Cubes are also being used for splitting tests. In the present study 100mm cubes taken from the tested flexural test specimen are used for conducting the splitting tensile test. The test was conducted under displacement control to record the splitting load and the corresponding vertical deformation. Concrete with a compressive strength ranging from 30MPa to 50MPa is studied. Fiber used in the investigation is round crimped having a diameter of 0.5mm. Three volume fractions of 0.5%, 0.75% and 1.0% and two aspect ratios of 55 and 82 are investigated. The influence of the fiber reinforcing parameter on splitting strength and the area under the load-vertical deflection curve are reported. The splitting tensile strength increases considerably with the addition of steel fiber. It also increases with an increase in aspect ratio of the fiber. There exists a direct correlation between splitting strength and the fiber-reinforcing index. The toughness of the material also increases with the addition of steel fiber. Equations are proposed to correlate the toughness with the fiber reinforcing index. (A)

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 1-11
  • Serial:
    • Volume: 1
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00801601
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Nov 8 2000 12:00AM