Cold-filled asphalt mixture, cold-feeding construction, cold-feeding factory started from me, starting from now, starting from small things; making small things and making details.
Tools/raw materials
Pavement cutting machine
Vibrating plate or roller (large area)
Sea rock cold feed, interface agent
Cold feed construction method:
1. Clean up the pit:
Determine the location of the trench trench excavation. After milling or slitting, clean the gravel and waste residue in and around the pit to be repaired. There shall be no mud, ice and other debris in the pit, and the pit to be repaired. The trough should have neat trimming, and the removal of the slag should be seen on the solid solid surface.
2 Brushing interface agent:
Apply the interface agent around the bottom and bottom of the cleaned pit, especially the surrounding of the pit.
3 Fill up the pit:
Fill enough of the cold-filling material into the pit, know that the filler is about 1.5cm above the ground, and the highway and general road repairs can increase the input of the material by 20% or 10%. After filling, the center of the pit should be higher than the surrounding road surface and curved.
If the depth of the pavement pit is more than 5cm, the filling work should be layered every 3-5cm, layered and layered.
4 Compaction:
After laying evenly, according to the actual environment, the size and depth of the repaired area, select the appropriate compaction tools and methods for compaction. Such as car tire compaction, manpower, vibrating plate compaction, roller compaction. When repairing high-grade roads, the perimeter and corners of the repaired area should be fully compacted.
5 Acceptance:
The surface of the repaired pit should be smooth, flat, and without wheel tracks. The surrounding and corners of the pit are compacted and loose, and the compaction should be above 93%.
Precautions
Only sea rock cold feed can be directly opened after construction, other cold feeds are not tested
Pay attention to traffic safety during construction
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