The Ontario Building Code | Compressive Strength

9.20.2.7. Compressive Strength

(1) The compressive strength of concrete blocks shall conform to Table 9.20.2.7.

Table 9.20.2.7.
Compressive Strength of Concrete Blocks

Forming Part of Sentence 9.20.2.7.(1)

Item	Column 1	Column 2	Column 3
	Type of Block	Minimum Compressive Strength Over Net Area, MPa
		Exposed to Weather	Not Exposed to Weather
1.	Solid or hollow concrete blocks	15	10
2.	Solid loadbearing cellular blocks	Not permitted	5
3.	Solid non-loadbearing cellular blocks	Not permitted	2

9.20.3. mortar