Astm D338518 Pdf _verified_ -

In 1975, ASTM Committee D18 on Soil and Rock published the first version of , titled Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer . The method was deceptively simple: drive two concentric metal rings into the ground, fill both with water, and measure how fast the water level drops in the inner ring. The outer ring created a buffer zone so water flowed vertically from the inner ring, not horizontally. This gave a true infiltration rate—how fast rainwater, irrigation, or runoff enters the soil.

: Results are calculated based on the amount of soil passing through the geotextile and are typically presented as a plot of percent passing versus particle size. astm d338518 pdf

The ASTM D3385-18 test method is widely used in various fields, including: In 1975, ASTM Committee D18 on Soil and

To install the rings without disturbing the soil structure inside the measurement area, ASTM D3385-18 requires the use of a driving cap and a hammer or mallet. A backhoe may be required for larger, heavy-duty rings. This gave a true infiltration rate—how fast rainwater,