Dynamic Forces during Shotcreting Operations Since spring 2001, ACI Shotcrete Nozzleman certification sessions have been held throughout North America. By shotcreteweb|2022-02-16T17:00:27+00:00January 6th, 2007| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail About the Author: shotcreteweb