The ASTM D3385-18 standard test method has significant implications for the construction industry, particularly in the design and construction of porous concrete pavements, sidewalks, and parking lots. By using this standard, engineers and contractors can:
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| Error | Consequence | Prevention | |-------|-------------|------------| | | Overestimates infiltration | Ensure outer ring water level equals inner ring level at all times. | | Ring driving smearing | Reduces vertical permeability | Drive rings smoothly, avoid over-hammering. Use sharpened ring edges. | | Temperature variation | Changes water viscosity | Record water temp; apply viscosity correction (provided in the standard). | | Trapped air | Hinders infiltration | Pre-saturate surface or use de-aired water. | | Insufficient test duration | Reads transient, not steady-state rate | Continue until rate stabilizes (can take hours in clays). | astm d338518 pdf
Infiltration Rate of Soils in Field Using Double-Ring Infiltrometer1
ASTM D3385-18 establishes a field procedure using a double-ring infiltrometer to measure the liquid infiltration rate of soils. This constant-head method helps determine vertical soil permeability for environmental and engineering projects by recording water volume over time. For more details, visit ASTM . Standard ASTM D3385-18 - Afnor EDITIONS The ASTM D3385-18 standard test method has significant
The official scope of the standard specifies the following key elements:
ASTM D3385-18 references several other ASTM standards that may be used in conjunction with it for comprehensive soil testing and site characterization: The official ASTM D3385-18 PDF is available through
The primary challenge with single-ring infiltration tests is lateral flow. Water entering a single ring spreads sideways due to capillary forces and soil stratification, which artificially inflates the measured vertical infiltration rate.