That is 1 1 2 truckloads from a concrete truck.
Putting a concrete floor in crawl space.
Also since concrete does not provide a thermal break a temperature difference between the air and the concrete surface will cause condensation.
This is done several ways.
In this design a concrete pad called a mud pad is poured on the crawl space floor.
Concrete is heavy and mixing enough by yourself to cover your entire crawl space floor and walls is out of the question.
Getting concrete from a truck into your crawl space is a difficult.
Permanently seals walls and floors.
Problems with putting wood flooring over a crawlspace.
With and with out a vapor barrier.
The alternative to pumping concrete is a liner sealing system of the crawl space.
Construction work that might need to be done in the crawl space will be much easier with a finished concrete floor.
And that leads to more mold.
To pour a floor 3 thick over a 1500 square foot crawl space floor alone is 14 4 cubic yards of concrete.
The concrete should be poured after the footer installation and the foundation walls are in place.
Installing a hardwood floor directly over a crawlspace exposes the wood to moisture from the ground and from the air in the crawlspace.
Ceramic and stone tile will be too heavy and too difficult to install on the access door.
Tile floors usually require an special underlayment on top of the.
The advantages of this solution are many.
Concrete will keep out moisture and bugs.
Most types of tile can be used above crawl spaces unless there are significant moisture problems in the crawl space.
This is essentially a concrete barrier meant to help control moisture in the crawl space.