Back to Soil Tests
Grain Size Distribution
Sieve & hydrometer analysis per ASTM D6913 / D7928
Test Level
Classification critical
🪨
STEP 1/3
Sieve Analysis Test
Enter retained weights to generate gradation curve & coefficients
📋 Gradation Results
🎯 Soil Type
Well-graded sand (SW) or gravel (GW)
📋 AASHTO / USCS
Based on gradation + Atterberg limits
📊 Sieve Data Table
| Sieve Size |
Retained (g) |
% Retained |
% Passing |
🪨
Enter Sieve Data
Input retained weights on each sieve to generate gradation curve, D10/D30/D60, Cu & Cc.
📝 ASTM D6913 / D7928 Method
- Sieve analysis: Stack sieves, shake 10 min (mechanical), weigh retained
- Hydrometer: For fines <0.075mm, readings at 0.5, 1, 2, 5, 15, 30, 60, 240, 1440 min
- D10, D30, D60 = particle diameters at 10%, 30%, 60% passing
- Cu = D60/D10 (Uniformity), Cc = (D30)²/(D10×D60) (Curvature)
- Well-graded: Cu ≥ 4 (gravel), Cu ≥ 6 (sand) AND 1 ≤ Cc ≤ 3
📊 Calculated Results (النتائج المحسوبة)
| Parameter (القياس) | Value (القيمة) | Status (الحالة) |
|---|
📄 Test Report (تقرير الاختبار)
Export the results as an Excel, PDF or printed report.
🤖 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).
🔧 Hardware Guide (دليل الهاردوير)
📄
Hardware guide file will be loaded here.
Place a hardware-guide.html file in the test folder.