Dry lean concrete is used as a sub base for structural concrete. It contains much less cement and more sand compared to structural concrete.
Bags of dry powered mix concrete are usually just a couple of bucks each for 80lbs.
no
NO. -Concrete may be a 'dry' wall, however it is NOT Drywall.
You need to make sure the concrete is clean and free of loose debris. Patch any holes in the concrete (let dry and settle).
This may be possible if you prep the dry concrete with a latex bonding agent.
dry concrete
Yes, you can. You should clean the dry concrete with water and a brush first, and you should use a bonding agent (available pretty much anywhere you buy concrete) for optimal adhesion. You may also wish to add reinforcement such as rebar.
Concrete does not dry, it cures.
no
Approximately 2.0 tonnes/m3.
dry volume constant is 1.54 because of the fact that to make one cubic metre of concrete, when materials are taken in their dry state before addition of water, their volume is 54 % more that that of a cubic meter.