Astm D338518 Pdf Jun 2026

The values stated in SI units are regarded as the standard. Inch-pound units given in parentheses are mathematical conversions provided for information purposes only and are not considered standard.

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ASTM D3385-18 was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. This ensures the standard meets international expectations for quality and acceptance in global commerce and technical applications.

ASTM D3385-18 establishes a standard field procedure for measuring soil infiltration rates using a double-ring infiltrometer, essential for engineering applications like waste disposal and stormwater management. It is best suited for uniform, fine-grained soils where a constant head of liquid is maintained to measure downward vertical flow. For complete technical specifications, visit ASTM International .

Concise takeaway

The volume of water entering the soil per unit area per unit time, typically expressed in inches per hour (in/hr) or centimeters per hour (cm/hr).

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Infiltration occurs when water at the soil surface enters the pores of the soil matrix. The rate at which this occurs is influenced by soil texture, structure, bulk density, initial moisture content, and the presence of vegetation or cracks. Initially, when soil is dry, the infiltration rate is high due to capillary suction (matric potential). As the soil saturates, gravity becomes the dominant force, and the infiltration rate stabilizes, approaching the saturated hydraulic conductivity ($K_sat$) of the soil.

Understanding ASTM D3385-18: The Standard Guide for Infiltration Rate of Soils Using Double-Ring Infiltrometer astm d338518 pdf

Acts as a buffer, ensuring the water in the inner ring moves vertically downwards rather than spreading horizontally.

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It only measures the infiltration capacity of the topmost layer of soil (the upper 30–60 cm). It does not account for deeper, impermeable clay or bedrock layers that might cause a water table to rise over time. The values stated in SI units are regarded as the standard

ASTM D3385-18 represents the authoritative method for field measurement of soil infiltration rates using double-ring infiltrometers. The official PDF is available for purchase from ASTM International and authorized distributors. Users should always obtain the standard from official sources to ensure compliance with copyright law and to guarantee they have access to the complete, current version.

: The standard references several other ASTM standards and documents, including those on geotextile sampling and conditioning.

ASTM D3385-18 is a standard test method that measures the permeability of porous concrete, which is a type of concrete that allows water to pass through it. The test method, titled "Standard Test Method for Permeability of Porous Concrete," provides a procedure for determining the rate at which water flows through porous concrete. This standard is crucial in evaluating the durability and sustainability of porous concrete, which is increasingly being used in various construction applications, including pavements, sidewalks, and parking lots.

( Standard Test Method for Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer ) outlines a consistent, repeatable procedure for measuring field infiltration. The test utilizes two concentric rings driven into the soil, which are then filled with water or a specific test liquid. This link or copies made by others cannot be deleted