The use of Proctor Penetrometer Test

We just purchased the Proctor Penetrometer tool set for field in situ density tests but it didn't come with a brochure and the supplier cannot help. Please we would want to know the testing procedure, the procedure for processing and interpretation of the data. Thank you.

Soil Mechanics / Geotechnical Analysis Geotechnical Investigations & In-Situ Testing

Asked 14/11/2014 00:23, updated: 14/03/2017 14:08

Okeowo Oni

1 Answer

Votes: 1

Jeffrey A Farrar

11/09/2023 01:14 *

The Proctor needle is used along with the proctor compaction test and its easy to do. There are ASTM procedures I can cite for you or I could send you copies of USBR Earth Manual procedures for free. my email is [email protected]

The data show the stiffness of the soil under a standard compactive effort at different mositure contacts. In the old days Proctor prefeered to use the needle in the field. The typical pressures at optimum of 200-400 psi are what we design the sheepsfoot compactor foot pressure to exert. Higher pressure are dry of optimum and can reach 10^3 psi. Wet of optimum is very low...

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The use of Proctor Penetrometer Test

1 Answer

Jeffrey A Farrar