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Get the bolt red hot then douse it with water the rapid expansion then shrinkage will crack it loose. After that you can spray some oil on it to make turn easier.

It's not frost damage. I've seen this happen for a couple of different reasons one is surface drying. On hot, sunny, windy days the top of the concrete loses too much water and doesn't cure properly, it's weak and not bonded to the concrete below it. The other reason comes from how the concrete...

It's hard to judge the grade from a set of photos but in general I'd try to keep the dirt away from your slab with a short retaining wall. Bring in some gravel or sand and keep the slab as high as practical. Then build a retaining wall a few feet away from your building.

If I understand your question correctly, I don't think the interior stud walls you're building will add much sideways stress to the exterior walls. If you are worried about it can't you add some diagonal bracing to the interior walls? I was wondering do you have anything under your metal on...

I think you are right. I've been in contracting and around contractors for many years and 95% of the work is done on the books. What I've seen happen is that an old established customer may have a small job to do and he'll offer to pay cash to make the job worth doing. I don't have a problem...

If the bid for was for poured walls 4 ft. high and 8in. thick with rebar and 8in by 16in. footings with rebar then I think that's a darn good price. Poured walls are several times stronger than block. I'd be surprised if you could get block walls put up much cheaper.

If you know you're going to put in a two post lift find out what you need for it's base and pour that before the floor. 4 inches of 4,000 lbs. concrete with #4 rebar or wire mesh panels is sufficient for weight you are planning. Put a good compacted sand base under it and a plastic vapor barrier...