In the method of Goldbeck and Gray how is the bb0 ratio affe

In the method of Goldbeck and Gray, how is the b/b0 ratio affected if the concrete is to be assisted by internal vibration?

Solution

b/b0 ration represents whether the concrete is workable or not. If this ratio is more then, concrete is more workble. If ratio is less then less workable. If concrete is assisted by internal vibration then b/b0 will be less because vibration method is adopted when workability is less. So, b/b0 will be less