Astm D338518 Pdf ^hot^ 🔖 📍

Repeat the process for the inner ring, driving it to the same depth. Step 3: Pre-Wetting and Setup Place splash guards on the soil surface inside both rings.

The apparatus consists of two concentric rings that are driven into the ground to a specified depth. The primary function of the outer ring is to promote one-dimensional, vertical flow beneath the inner ring, effectively preventing lateral water spread during the measurement. The standard provides detailed specifications for the required dimensions and materials of these rings.

: Two concentric rings—usually a 12-inch (300 mm) inner ring and a 24-inch (600 mm) outer ring —driven into the soil to a specific depth.

ASTM D3385-18, officially titled “Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometers,” serves as the industry benchmark for this measurement. By utilizing a concentric ring apparatus, the method aims to minimize lateral flow divergence, thereby providing a more accurate representation of the vertical hydraulic conductivity of the soil. This paper dissects the standard, offering guidance on its practical application and theoretical basis.

To ensure you are using the correct, up-to-date procedures, it is recommended to obtain the official document directly from the source.

A Comprehensive Guide to ASTM D3385-18: Field Measurement of Soil Infiltration Rate

This test is most effective for fine-to-medium-textured soils. It is not suitable for highly gravelly, stony, or fractured rock formations where driving the rings causes severe soil disturbance or bypass flow paths.

For those interested in downloading the ASTM D3385-18 standard, it can be accessed through the ASTM website or purchased as a PDF document. Additionally, the following references provide further information on the topic:

Why do engineers and scientists go through the rigorous process of performing this field test? The data yielded by ASTM D3385-18 serves multiple critical functions across various disciplines:

To properly execute the test according to the ASTM D3385-18 manual, specific equipment standards must be met:

ASTM D3385-18, the "Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer," outlines a field procedure using a 12-inch inner and 24-inch outer ring to determine soil permeability. The constant-head method is suitable for measuring liquid infiltration in various soils, excluding those with high gravel content or excessive shrinkage. The full standard can be purchased directly from the ASTM Store .

The is the standard test method for determining the infiltration rate of soils in the field using a double-ring infiltrometer. Engineers, hydrologists, and environmental scientists rely on this protocol to assess how water moves downward through the ground surface. Understanding this standard is essential for designing stormwater management systems, septic tank absorption fields, and landfill covers. What is ASTM D3385-18?

Farmers and agronomists measure infiltration to design efficient irrigation systems , ensuring crops receive adequate water without causing destructive surface runoff or waterlogging.