Concussive Augmentation question.

[44_CoC2_44]

So I was reading the wiki to come up with some build ideas and I saw this ability for Kineticists:

8​

Concussive Augmentation​

Adds an unavoidable blast of kinetic force to your basic attacks for the next three attacks.​

I’m not sure whether this means damage is replaced with something else or it adds damage. If it does add damage, then how much?