Astm D338518 Pdf Jun 2026
In the fields of geotechnical engineering, environmental science, and civil construction, understanding how water moves into the ground is critical. Whether you are designing a septic system, a stormwater management facility, an irrigation network, or a landfill cover, the rate at which soil absorbs water—known as the —is a fundamental parameter.
Assessing the permeability of soil barriers used to contain waste or prevent rainwater infiltration into landfill cells. Limitations of the Method
I=VA×Δtcap I equals the fraction with numerator cap V and denominator cap A cross delta t end-fraction astm d338518 pdf
of soils using a double-ring infiltrometer. This method is most effective for relatively uniform, fine-grained soils and is typically used for applications like irrigation studies, septic field evaluations, and stormwater management. The University of Utah 1. Equipment and Site Preparation
The standard is the globally recognized benchmark for measuring the in-situ infiltration rate of liquids into soil . Managed by the ASTM Committee D18 on Soil and Rock , this specification establishes a uniform field protocol using a double-ring infiltrometer to capture accurate drainage properties. These measurements are critical for engineering civil infrastructure, stormwater management frameworks, and environmental containment designs. Limitations of the Method I=VA×Δtcap I equals the
: 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.
Drive both rings into the ground to a depth of approximately 6 inches (15 cm). Use a driving cap and a heavy mallet or slide hammer to ensure the rings enter vertically without tilting or wobbling, which could break the soil-to-ring seal. Step 3: Sealing and Pre-Wetting Equipment and Site Preparation The standard is the
To legally utilize this standard for certified engineering reports, access to the official document is necessary. The full standard includes precise dimensional drawings of the apparatus, data sheet templates, and specific quality assurance controls.