Compaction of Soil

The experimental dry unit weight of the soil was determined to be 15.63 kN/M^3 (Figure 1C). This data was then compared to the know range of 14.7-22.6 kN/M^3 for sands and gravels from Table 1. This information corresponds to the assumption that the soil was mostly sand with an estimated Gs of 2.70 which shows that the accuracy and reasonableness of the values obtained in the lab are correct.

Figure 1C: Proctor Compaction Curve with Polynomial Trend line

 

Figure 2C: Original Lab Data Sheet
 

                                                                           Figure 4C: Sample Calculations