PDF
Word
DD Form 1207 Grain Size Distribution Graph - Aggregate Gradation Chart
What Is DD Form 1207?
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 1207 , 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 a DD Form 1207?
A: DD Form 1207 is a document used to record grain size distribution information for aggregate materials.
Q: What does the Grain Size Distribution Graph show?
A: The Grain Size Distribution Graph shows the proportion of different grain sizes in an aggregate sample.
Q: What is an Aggregate Gradation Chart?
A: An Aggregate Gradation Chart is a graphical representation of the grain size distribution for an aggregate sample.
Q: Why is grain size distribution important for aggregates?
A: Grain size distribution is important for aggregates because it helps determine their suitability for various construction applications.
Q: How can the Grain Size Distribution Graph be used?
A: The Grain Size Distribution Graph can be used to evaluate the grading of an aggregate sample and compare it to specification requirements.
Q: What are some common grain size fractions shown on the Graph?
A: Some common grain size fractions shown on the Graph include fine sand, coarse sand, fine gravel, and coarse gravel.
Q: What do the horizontal and vertical axes represent on the Graph?
A: The horizontal axis represents the grain size fractions and the vertical axis represents the percentage passing through each fraction.
Q: What is the purpose of an Aggregate Gradation Chart?
A: The purpose of an Aggregate Gradation Chart is to provide a visual representation of the grain size distribution for an aggregate sample.
Q: How is the Grain Size Distribution Graph typically presented?
A: The Grain Size Distribution Graph is typically presented as a line graph with the grain size fractions on the horizontal axis and the percentage passing on the vertical axis.
Q: Who typically uses the Grain Size Distribution Graph?
A: The Grain Size Distribution Graph is typically used by geotechnical engineers, materials testers, and construction professionals.
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 1207 down below in PDF format or browse hundreds of other DoD Forms compiled in our online library.
