Block building repair?

[g13092]

Garage nuts, I'm looking at a property with an old block outbuilding on a concrete slab floor. It has some cracks, a few of which extend down into the floor. The roof structure is sound.

Is it repairable? If so, how is it best repaired?

 

[Hilltopmasonry]

One settlement crack like that in an old building would not scare me at all

that’s pretty typical, if it doesn’t settle anymore or you could simply tuckpoint it and be done


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[Gravely1961]

I’m not a builder but if you are lucky like we were you can also grout the cavities from above and add rebar. You might have no way if your blocks are set such that they foul the internal openings.


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[rburke65]

Wow. That’s a lot of crack!

 

[g13092]

Maybe I should be a crack dealer

 

[g13092]

One settlement crack like that in an old building would not scare me at all

There's actually quite a few. Two pics are the same crack, inside and outside views, emanating from the floor. The third pic is the opposite end of the building.

What's the next level of repair past mortar or pouring down the block webs from the top?

 

[kbs2244]

If they all follow the motar lines they are normal settlement cracks.
Nothing to worry about.
A tuck pointing and water proof paint will fix it if you feel uneasy.

 

[matt_i]

Those are 3 unique locations...

Something in the foundation is inadequate or moving/heaving and so the wall is "bending" within its vertical plane and obviously being concretious has no flexibility to do so.

My wild guess is the footing is not poured to below the frost line and so seasonal heaving is loading the walls unevenly.

Is it an issue..."depends" would be my answer. Probably great for storage. I wouldn't plan to refit it into a Taj Mahal, its definitely going to be cold and would need some insulation to "get warm".