Vee-Bee Consistometer test

Vee-Bee Consistometer test in civil engineering

Aim:

    To determine the workability of fresh concrete by using a Vee-Bee consistometer

Apparatus required:

    Vee-Bee Consistometer 

Procedure:

•     A conventional slump test is performed, placing the slump cone inside the cylindrical part of the consistometer.
• The glass disc attached to the swivel arm is turned and placed on the top of the concrete in the pot.
• The electrical vibrator is switched on and a stop-watch is started, simultaneously.
• Vibration is continued till the conical shape of the concrete disappears and the concrete assumes a cylindrical shape.

• When the concrete fully assumes a cylindrical shape, the stop-watch is switched off immediately and time is noted.The consistency of the concrete should be expressed in VB-degrees, which is equal to the time in seconds recorded above.

Result:

    Thus the workability of concrete is determined using  Vee-Bee Consistometer test.

The value is -----------  VB-degrees.