Average Compaction Factor for Florida Limerock

There's a couple of ways that you can use to determine how much material was placed. The first question I'm going to ask you is: Did this construction project have a PROJECT MANUAL prepared by an Engineer? If yes, did it contain a Technical Specification section detailing how EARTHWORK is to be preformed?

Typically, minimum Earthwork material compaction limits are specified, based either on Standard Proctor or Modified Proctor Density tests. The specifications may have included a subsection the detailed that the material supplier provide "Batch Tickets" for every truck load of soil. The General Contractor is usually required to produce copies of each Batch Ticket stating the volume and weight of the material.

Secondly, if you know the existing and finish topographies then you can determine the Gross Volume of material placed, in Cubic Feet or Cubic Yards. You should have a certified Independent Material Testing Agency conduct a number of soil borings, the quantity of which will be dictated by the specifications. The agency should record the in-situ soil gradations, densities, and void ratios, as well as any other parameter that is specified.

If you know the total gross volume of material based on topographic differences, the placed densities, and the void ratio then you can determine the actual material placed. Simple math.