Internal Vibration

  1. Internal vibration is required. External vibration is not sufficient and is not code compliant.
  2. Use a low impact pencil vibrator with a ¾ to 1” head and a ¾ to 1.5 HP motor.
  3. Either gas or electric is acceptable.
  4. The recommended technique is fast in, slow out.
Using a pencil vibrator to internally vibrate the wall
Using a pencil vibrator to internally vibrate the wall