On May 22, 2:23*am, gregz wrote:
wrote:
How many bags of mortar do I need per number of 8x8x16 concrete blocks?

I want to build a small basement, know the number of blocks I will need
(around 800), but dont know how to determine the amount of mortar. *I
intend to buy raw mortar and add my own sand. *I'll just buy a truckload
of sand, which I assume should be more than enough, but how do I
determine the number of bags of mortar? *This is a rural area and I have
to drive 55 miles to get it at a reasonable price, so I want to be sure
I have enough. *I refuse to buy it locally and pay their outrageous
ripoff prices (for example, the blocks at the building center 55 miles
away are $.89 each, locally, they are $2.40 each).

Thanks

I bought 8X10X16 at local supply at about $1.60 each. I used 60 pound
premixed mixed bag for about 12 blocks. First time I ever blocked, a window
opening. You can probably find a calculator somewhere.

Greg

You don't want to buy it all at once as you will have to store it
somewhere dry and it will deteriorate anyway unless used immediately.
BTW can you can cement over there in waterproof bags?

Premixed stuff is grossly uneconomic.

The strength of the cement you mix will depend on the strength of the
blocks.