DD Form 1215 In-place Density Determination - Sand-Cone Method

What Is DD Form 1215?

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 1215 , 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 1215?A: DD Form 1215 is a document used for in-place density determination using the sand-cone method.

Q: What is in-place density determination?A: In-place density determination is a process of measuring the density of soil or other granular materials in its natural state.

Q: What is the sand-cone method?A: The sand-cone method is a technique used for determining the in-place density of soil by measuring the volume of a hole using a sand cone and the weight of the excavated soil.

Q: Why is in-place density determination important?A: In-place density determination helps engineers and construction professionals evaluate the compaction quality of soil or granular materials, which is crucial for structural stability and performance.

Q: How is the sand-cone method performed?A: The sand-cone method involves excavating a hole in the soil, measuring the volume of the hole using a sand cone apparatus, and weighing the excavated soil. These measurements are used to calculate the in-place density of the soil.

Q: What information is included on the DD Form 1215?A: The DD Form 1215 includes details such as the project and location, date of testing, soil material description, cone correction factors, and calculation of in-place density.

Q: Who typically uses DD Form 1215?A: DD Form 1215 is commonly used by engineers, geotechnical professionals, and construction personnel who need to assess the compaction quality of soil or granular materials.