I have spent 12 years seeing floors fail under heavy machinery. For busy...
https://www.4shared.com/office/fBs6FV3mjq/pdf-55745-87915.html
I have spent 12 years seeing floors fail under heavy machinery. For busy warehouse zones, I recommend PU concrete. Expect to budget £45-£85 per sqm for a professional install that handles constant vibration. Keep your site moving safely!