Most common method of crack repair in concrete is pressure injection of epoxy, though carbon fiber overlays and other techniques can be used depending upon the type of crack and the required performance of the repair.
You can take information de repair product in Sika or another company, but is necessary identify first what is the matter of the cracking, if is it superficial, if it is coming with water flow, if it is due to bad vibration of the concrete,if it posible repared for one or other face or boths, all is important to take the best reparation form.