The study looked at how water content, lime amount, and compaction energy affect the compaction of loess highway embankments. They tested different mixtures in the lab and in the field to see how these factors influenced the density and compaction of the soil. The results showed that more water content led to higher density, but too much water caused a drop in density. Adding lime increased density and decreased compaction. Using more compaction energy increased density but decreased compaction. The best compaction was achieved with slightly more water than the optimum level. In real construction, it's hard to reach 100% compaction, so higher water content and energy are needed for the best results.