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J Ring Apparatus

J-ring test the passing ability of the concrete .The equipment consists of rectangular section of 38 mm X 25 mm open steel ring drilled vertically with holes to accept threaded section of reinforcing bars 12 mm diameter 100 mm in length.The bars and sections can beplaced at different distance apart to simulate the congestion of reinforcement of the ring formed by vertical section is 300 mm and height 100 mm .

Equipments :

  • Slump cone without foot pieces
  • Base plate at least 900 mm
  • Trowel
  • Scoop
  • Scale 1 Meter
  • J ring rectangular section 38 mm *25 mm plated vertically to form a ring 300 mm dia meter generally at a spacing of 48±2 mm .