Monolithic slab beam angle, or not?
I notice that on many monolithic slab detail drawings that their appears to be 45 degree slant and on others their seems to be little to no slant. See image below.
What is the point of the slant? Seems like a waste of concrete if it does not serve a structural purpose.
I am insulating under the slab with recycled 25psi XPS, so the straight up and down approach seems like it would be easier to work the insulation detail in.
I am in zone 4a and it is a one story house shop ranch rectangle home.
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