I need help figuring out what type of concrete block this is? By type of block I mean the kind that has no tapered inner holes. I need the ones that are just square, see picture below. I made plans for a prototype log cabin made out of 4x4's and wanted to use these blocks for the foundation. If you can help me source these in South Western Ontario, Canada, that would be good too.
To get you going in the direction you want first...and concrete supply distributor should be able to source such a CMU....
I must share that I personally would never recommend to a client or student to use concrete in this fashion, or ever have it be in direct contact with wood...Especially logs for this type of vernacular building style. I like the concept, but would suggest stone, or clay brick, good solid gravel trench foundation, lime and/or cobb mortars, and a "rot resistant" sill timber species like cypress, locust, catalpa, tamarack, hemlock or related species. I would also probably treat this sill with one of the "permi acceptable" modalities.
There is a great deal here on Permises.com covering this and related subjects to it...
It appears that the plan is to use the blocks like a skid. I could see them becoming completely saturated during the winter, whenever there's a thaw or during the spring melt. Dirt may accumulate against the wood.
If the wood and dirt around the hole becomes saturated, eventually it will freeze and blow the block apart.
Surfs up space ponies, I'm making gravy without this lumpy, tiny ad: