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Soil Classification

USCS & AASHTO classification from lab data per ASTM D2487

Test Level
Design input for pavement layers
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STEP 1/3
Soil Classification
Automatic USCS and AASHTO classification from test results
📊 Input Parameters
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Enter Classification Data
Input gradation and Atterberg limits to classify soil using USCS and AASHTO systems.
📝 Classification Standards
  • USCS: Unified Soil Classification System (ASTM D2487)
  • AASHTO M 145: Standard specification for mineral aggregates
  • Gravel: >50% retained on #4 sieve (4.75mm)
  • Sand: >50% passes #4, >10% retained on #200
  • Silt/Clay: >50% passes #200 sieve
🤖 SmartLab Stages (مراحل سمارت لاب)

Connect your SmartLab device and follow the guided stages to run this test automatically.

💡 The SmartLab content below is managed through the Test Zones system (available to administrators).