Very plastic (fat) clays or highly compacted soils where ring driving causes severe fracturing.
Writing a comprehensive paper on ASTM D3385-18 requires a detailed understanding of the standard and relevant research areas. Ensure you contribute original insights or perspectives to the field.
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The official scope of the standard specifies the following key elements:
A digital copy can be officially secured via the ASTM International D3385 Product Page or through licensed distributors like ANSI and AFNOR Editions . 1. Scope and Core Applications Very plastic (fat) clays or highly compacted soils
Plotting the infiltration rate against elapsed time yields an infiltration curve. The curve typically drops sharply at the beginning of the test as dry soil matrix suctions pull water in, eventually flattening out into a horizontal line representing the steady-state infiltration rate. Limitations and Practical Considerations
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. This public link is valid for 7 days
When water is poured onto an open patch of ground, it naturally infiltrates both vertically (downward due to gravity) and horizontally (laterally due to capillary action or suction forces). If a technician uses a single ring driven into the ground, lateral flow causes the measured water level to drop faster than it would if the water were only moving straight down. This overestimates the true vertical infiltration rate.
Executing an ASTM D3385-18 compliant test requires standardized field equipment to ensure repeatability and data integrity. 1. The Rings Typically 300 mm (12 inches) in diameter. Outer Ring: Typically 600 mm (24 inches) in diameter.
: Center the inner ring inside the outer ring and drive it to a similar depth. Vertical Alignment
Hook gauges, float valves, or graduated scales to measure water volume or level drops over precise increments of time. Step-by-Step Testing Methodology