Small road rollers can be said to be the most widely used road compaction tools. The most concentrated expression of the level and stability of the roadbed construction quality is the compaction degree of the small road roller. The quality of the compaction degree not only directly affects the quality of the road surface but also has a great impact on the use of the entire road in the later stage. So, what factors will affect the compaction quality of small road rollers? In this regard, the editor has sorted it out for you, let's take a closer look at it together!
The water content has a great influence on the compaction effect. Whether it is trench backfilling or roadbed compaction, the water content should be controlled. Strictly control the moisture content within the range of ±2% of the optimum moisture content. In this state, the gravitational force between soil particles is small, the water film is thick, which plays a lubricating role, and the external compaction is easier to make the soil particles move relatively, and the compaction effect is the best. When the water content in the soil is too large, free water appears in the pores, and the compaction function cannot make the gas discharge. Part of the compaction function is offset by the free water, which reduces the effective pressure and reduces the compaction effect. When the water content is small, the gravitational force between soil particles is large, and although the dry bulk density is large, its strength may be higher than that of the optimal water content. However, at this time, due to the low density and many pores, once saturated with water, its strength will drop sharply.
