Astm D338518 Pdf Verified Official

Record the volume of water required to maintain the constant level in the inner ring at regular time intervals.

The primary objective of the ASTM D3385-18 standard is to quantify the "incremental infiltration velocity" and the steady-state "infiltration rate" of soils in-situ. The standard is highly localized; it measures a specific test surface zone and maps how water moves down over timed intervals. Primary Applications

Typically an open cylinder that is at least 300 mm (approx. 12 in.) in diameter and at least 500 mm (approx. 20 in.) long. astm d338518 pdf

Heavy-duty equipment to drive the rings into the soil uniformly without warping the metal frames.

cm/s), engineers must reference the sealed-inner ring technique outlined in instead. 2. Infiltration vs. Hydraulic Conductivity Record the volume of water required to maintain

The ASTM D3385-18 pdf standard does not cover all safety issues related to its use; it is the user’s responsibility to follow proper safety protocols. Where to Obtain the ASTM D3385-18 PDF

. It is ideal for granular soils, loams, and sandy mixtures, but less suited for very stiff clays or highly fractured rock. Why Use a Double-Ring Infiltrometer? Primary Applications Typically an open cylinder that is

Measures the actual vertical infiltration rate. Because lateral flow is restricted by the outer ring's hydration barrier, the data collected from the inner ring reflects true vertical movement. Core Methodology and Equipment

Test principle and equipment

The designation "18" indicates that the standard was last reviewed, updated, or reapproved in the year 2018. This specific testing standard is governed by ASTM Committee D18 on Soil and Rock and falls directly under Subcommittee D18.04 on Hydrologic Properties of Soils & Rocks. Core Objectives of the Test