Replacement for Granular Proctor?

[Grouser]

I've been out of the materials testing business for a few decades now and I am wondering if new research has been done to replace the Proctor lab test for granular soil compaction. I seem to recall a maximum density shake table type test but never saw it widely adopted. Anything new out there?

Cheers

 

[Ron]

No. The Proctor test is still widely used.

The maximum density "shake" table you mention has been around for at least 50 years, but the procedure gives you a relative density value rather than a comparative, correlated lab standard for field comparison....stick with the Proctor.

 

[vulcanhammer]

It's not only still used, but still taught: it's a standard part of any soil mechanics (and lab) course, I'm gearing up for both next semester.

ASCE is using a Proctor test as a student competition for our regional meeting.

It's a tribute to those who developed the core tests of our profession (Proctor, Casagrande, etc.) that these tests are still core to geotechnical practice.

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