California Bearing Ratio Test - Soil Properties: Testing, Measurement, and Evaluation - page 403

Figure 24-5 Determining CBR for Water Content Range and Minimum Dry Unit Weight [1]

[B] Unit Weight Determination

Before After

Soaking Soaking

Mass of mold compacted soil specimen (g) 9,020.90 9,036.81

Mass of mold (g) 4,167.50 4,167.50

Diameter of mold (in.) 6.00 6.00

Height of soil specimen (in.) 5.00 5.00

[C] Swell Data

Initial Swell Final Swell

Measurement Measurement

Surcharge weight (lb) 10 10

Time and date 5/26/08, 10:16 A . M . 5/30/08, 10:16 A . M .

Dial reading (in.) 0 0.0135

Initial height of soil 5.00 5.00

specimen (in.)