Then the grass-roots construction to the stability layer, including two ash macadam stage, will use 21T iron three times repeatedly rolling the road. Excuse me, iron three rounds again in this process, the role and vibration roller what is the difference?
In addition, when you are in the construction of two ash macadam base is best not in windy weather, it will also cause some segregation, the two ash macadam will be very strong, this layer if well, the whole road there is no problem, of course, the premise is to very good foundation, if any the soft soil subgrade subgrade or containing large amount of water and other issues, we must change the fill treatment and so on.I hope I can help you. Give me the reward. I've been in Luqiao for a long time. If you have any problems or projects, I hope we can learn from each other,
Why not use vibratory roller compacted base, mainly because the composition of the two ash macadam, two ash gravel is composed of lime, fly ash and gravel mixture, the mix and then transported to the general in the construction site. After completion of paving compaction after curing can be survived, but must adopt smooth wheel roller rolling roller, if the vibration, vibration in the process, two ash gravel will occur somewhat like segregation, segregation of concrete, gravel and lime fly ash is separated from the. Crushed between the two ash separated, leading to maintenance survived, so we cannot use vibratory roller.
First of all, to clear the use of vibratory roller and a roller.In general, vibratory roller used for rolled earth rock subgrade, because of its quality, coupled with the vibration force, can increase the rolling depth, but also can make the earth subgrade compacted in a certain depth range, reduce the gap in the embankment of roadbed, compaction depth generally 20 to 30 cm is appropriate. Different grades of highway there are different requirements.The smooth wheel roller generally used two ash macadam and other basic roller compaction or other rolling road.
