The compaction effect of compaction equipment is influenced by various parameters, mainly including:
Axial load. It directly affects the compression deformation, and there is a positive correlation between the two. Large tonnage rollers, due to their ability to produce greater compactness during compaction, can more effectively compact deep materials
Line pressure. It reflects the vertical force generated by the roller on the compacted material and has a direct impact on the compaction capacity. The line pressure should not be too high to avoid material damage.
Rolling speed. Increasing the rolling speed can improve productivity, but in order to ensure the quality of the compacted road surface, the maximum speed allowed should be chosen while ensuring the quality of the compacted road surface.
The frequency and amplitude of the vibrating roller. These parameters have a significant impact on the compaction effect. Generally speaking, the vibration frequency is between 25~50Hz, and increasing the amplitude can significantly improve the compaction effect.
The diameter and width of the roller. For rollers with the same amplitude and vibration mass, wider rollers can produce deeper penetration effects because they can more effectively propagate vibration.
Tire size and wheel load. Rollers of different sizes can generate the same contact pressure under the same wheel load.
Tire inflation pressure. Under standard pressure, the difference in contact area and contact width between various tires is very small. Therefore, in order to obtain the same contact pressure, it is necessary to choose the appropriate inflation pressure.
Compaction thickness. It refers to the actual thickness of the compacted paving layer, which is related to the compaction capacity of the roller and the depth of influence of the action force
Requirements for soil moisture content, layer thickness, and compaction degree. These factors will affect the choice of heavy or light rollers.
In addition, operational skills and experience are also important factors that affect the compaction effect.