Old factory floor, really in poor shape, but not really broken anywhere - just patched for floor plumbing over and over again and with low spots, etc. Having it covered in something called lightcrete (or maybe that's just the company name). Installed PSI is 4000. I'm using it for a recreation...
I used a floor leveler product from menards. $50 for 50lbs. Pretty easy to use. I mixed 1 bag at a time in a 5 gal bucket using exacting water measurements, and did 5 bags on my basement project. I moved it around a bit with a sqeezgee, and troweled the edges. Turned out great.
I think the Eastwood products are a safe bet. I have a Millermatic 140 MIG and its pretty easy to use, but I recently bought an Eastwood TIG 200, and an Eastwood plasma cutter, and so far so good (only practice so far). Both are 110 or 220 machines. Someone above recommended the Millermatic...
I don't think it's fair or even remotely accurate to blame the demise of alcohol in the workplace on lawyers. It's more likely a result of the single-interest groups like MADD. You can thank them for . 08 legal limit too.
I have been litigating concrete for 10 years. That is the worst work I have ever seen. Look up "retempering" concrete. This is what happened to your job. That and you and the contractor broke the golden rule of concrete work. Never Ever pour flatwork in sub freezing weather. I don't care...
I use my garage pretty much the way you describe. I live in Michigan, so clean up of the winter dragged in by the cars and sleds is an issue too. I used epoxy kits from Lowes - I think they were maybe $60 each. Its been five years and they still clean up well. They are a bit scarred now, but...