• About 12 liters of concrete is needed for the test.• Set the V-funnel on firm ground.• Moisten inside of the funnel.• Keep the trap door open to remove any surplus water.• Close the trap door and place a bucket underneath.• Fill the apparatus completely with concrete.• Compaction or tamping is done.• Strike off the concrete level.• Open within 10 seconds the trap door and record the time taken for the concrete to flow down.• Record the time for emptying.• This can be judged when the light is seen when viewed from the top.• The whole test is to be performed within 5 min.• Do not clean or moisten the inside surface of the funnel.• Close the trap door and refill the V-funnel immediately after measuring the flow time.• Place the bucket underneath.• Fill the apparatus completely with concrete without tamping or tapping.• Strike off the concrete level with the top by trowel.• Open the trap door after 5 minutes after the second fill of the funnel and allow the concrete to flow.• Calculate the time taken for complete discharge.• It is called the flow time at T5 min.• For V-funnel test the flow time should be between 8 and 12 seconds.• For V-funnel flow time at T5 min. + 3 seconds is allowed.V-funnel flow time (tv) = _________ secThe V-funnel flow time tv is the period from releasing the gate until first light enters the opening, expressed to the nearest 0.1 seconds.(tv) = _________ sec• This test measures the ease of flow of the concrete; shorter flow times indicate greater flowability.• For SCC a flow time of 10 seconds is considered appropriate.• The inverted cone shape restricts flow, and prolonged flow times may give some indication of the susceptibility of the mix to blocking.• After 5 minutes of settling, the segregation of concrete will show a less continuous flow with an increase in flow time.