Aligning and Core Filling:
Once the bottom row is installed, the straight course of the wall should be aligned using a string line. After the bottom row is aligned, the units should be core filled using free-drainage aggregate. Also, fill the open spaces and up to a minimum of 12 inches behind the units with the free-drainage aggregate. This will help alleviate any hydrostatic pressure on the wall. After the bottom row is installed, one can install up to 2 rows at a time before core filling with the free-drainage aggregate. By doing this, you are insuring that all the voids within the block are being filled correctly. |
