Ecocentric = an adjective used to describe a state of mind; of a person, or a social group, who is, or are: Committed to Making a Positive Contribution to The Survival of Mankind And The Eco-System Which Supports Us.
Effects. When fast-setting concrete mix is used, setting takes place in 20 to 40 minutes. Typically, you can apply some weight to the posts after 4 hours, but it's a good idea to wait at least 24 hours before resuming fence construction.
For the strongest concrete mix, you'll want to premix the concrete with the proper about of water, before you pour it in the hole. The lazy way is the way he wants to do it and you will not get the strongest mix. Also 1-1/2 bags per hole is about right for a 4x4 fence post. Also remember, the depth of the post hole should be one-half of the above-ground post height. (Example: For a 6' above ground post, use a post with an overall height of 9 feet and place 3 feet in the ground).