Different working conditions should also be selected
The tonnage and function of the roller are all diverse, so in the face of different working conditions, we should choose different roller. The next little editor is to teach you some techniques for choosing a roller.
First of all, it should be selected according to the requirements of the quality of the project.
The tire roller can get you a uniform compaction density. When rolling, it does not destroy the original viscosity of the soil, it can maintain good bonding performance between all layers of soil, and the front wheel can swing, so the compaction is more uniform, and there will be no false compaction.
A fully driven roller can compact the pavement. If the compacting capacity of the roller is not high, the roller with low line pressure and flexible maneuver can be used. If the compaction effect is to be reached as soon as possible, a large tonnage roller can be selected to shorten the time limit for the work.
The next is to choose the thickness of the layer.
For roller compacted asphalt concrete pavement, the weight, amplitude and vibration frequency of the roller should be selected according to the paving thickness of the mixture. Usually, in a thin layer of layer thickness is less than 60mm, should use the small vibration amplitude of 0.350.60mm 26t roller, it can avoid the emergence of a pile of material, wave and damage aggregate phenomenon; for a thickness greater than 100mm thick layer, should use the high amplitude (up to 1.0mm), large and medium sized 610t vibrating roller.