According to the actual investigation of Jinan asphalt manufacturer and the discussion of municipal, high-speed maintenance and other construction units, the key points of asphalt use are summarized, and I hope to bring you some help.
1) When using Jinan asphalt, the pit and groove shall be treated by first determining the excavation position of the pit and groove. After milling (according to the pavement thickness, the depth is generally not less than 3cm) or cutting the joints, the gravel and waste residue in and around the pit and groove to be repaired shall be cleaned. There shall be no sewage, mud, ice and other sundries in the pit and groove. The repaired pit and groove shall have neat cutting edges. The waste residue shall be removed until the solid solid solid surface is seen.
2) When Jinan asphalt is used to fill the pit, it is recommended to apply tack coat oil around and at the bottom of the cleaned pit, especially around the pit (according to the actual construction experience, tack coat oil has a good auxiliary effect on the combination of new and old pavement).
3) Enough Jinan asphalt shall be filled into the pit. Jinan asphalt shall be first spread around the groove wall and spread from the side to the middle. Until the filling is about 1.5cm higher than the ground, the middle of the pit shall be slightly higher than the surrounding road surface and arc after filling. If the damage depth of the pavement pit is more than 5cm, the filling work shall be filled in layers and compacted layer by layer with every 3cm.
4) After the compaction of asphalt materials in Jinan is completed, a layer of stone powder or fine sand can be evenly spread on the surface as required, and the cleaning tools shall be used to clean back and forth, so that the fine sand can fill the surface gap. After that, the traffic can be opened.
The above are the key points of Jinan asphalt. You can use them as a reference. For more relevant precautions, please visit our website http://www.ycgjglcl.com Consult!