It's a garage. I want to fill the cores (holes) in the blocks where the vertical rebar runs are. From my research grout, concrete and mortar are all the same but the mixes are different. Grout has a higher water content then the other two making it flow better into tighter spaces. I already have a yard of sand and was going to get more type s cement. I wanted to do this way to save some money as the pre mix is alot more money.
Ready mix truck?
Maybe I am just lazy! The thought of mixing a bunch of concrete/mortar/grout/Portland cement by hand does not sounds like a fun time to me. Either way good luck!
There are times on big block jobs, where the walls are grouted after the fact, using batch plant concrete. This typically involves a concrete pump and a simple funnel that rides along the top of the wall. It essentially is a plywood flower box with tapered sides, open bottom, and a pair of wooden runners that keep it centered on the wall.
When it comes to not having fun, there are contractors in these parts that repair block basements. One of their techniques is to cut "windows" in the block to access the core, then hand fill the core with mortar, and short pieces of rebar, to reinforce a wall that's been pushed back into place. Every so often I see one of their displays at a fair, look at the little 4" square hole cut in the block, with the mortar and bar inside and think, "God, that has got to be one shitty way to make a living"
