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DD Form 1209 Liquid- and Plastic-Limits Determination
What Is DD Form 1209?
This is a form that was released by the U.S. Department of Defense (DoD) on December 1, 1999. The form, often mistakenly referred to as the DA Form 1209 , is a military form used by and within the U.S. Army. As of today, no separate instructions for the form are provided by the DoD.
FAQ
Q: What is DD Form 1209?A: DD Form 1209 is a form used to determine liquid and plastic limits.
Q: What are liquid and plastic limits?A: Liquid and plastic limits are measurements used to determine the moisture content of a soil.
Q: How is the liquid limit determined?A: The liquid limit is determined by conducting a specific test where a soil sample is gradually mixed with water, and the point where it behaves like a liquid is recorded.
Q: How is the plastic limit determined?A: The plastic limit is determined by rolling a soil sample into a thread until it crumbles and breaks apart.
Q: What is the purpose of determining liquid and plastic limits?A: Determining liquid and plastic limits helps in evaluating the engineering properties and behavior of soils.
Q: Who uses DD Form 1209?A: DD Form 1209 may be used by various professionals in the field of geotechnical engineering and soil science.
Form Details:
- A 1-page document available for download in PDF;
- The latest version available from the Executive Services Directorate;
- Editable, printable, and free to use;
- Fill out the form in our online filing application.
Download an up-to-date fillable DD Form 1209 down below in PDF format or browse hundreds of other DoD Forms compiled in our online library.
