Regular readers will remember that we are getting closer to having a new test standard for pervious concrete hardened density. While it is not yet published, ASTM has assigned a number to the new standard: C 1754 - 12. This test will be known as "Test Method for Hardened Density of Pervious Concrete".
Looking at its applications in the next 3-5 years, it will probably be used mostly as a research tool. It will take a few years to build up a data set that will give the ACI 522 committee guidance on proper specification limits to incorporate into ACI 522.1. If there are any researchers looking for a project, this is one the industry needs to be able to incorporate this standard into project specifications.