Pit cleaning
确定坑槽开挖位置，四周铣刨或切缝后，将待修补的坑槽内及四周的碎石、废渣清理干净，坑槽内不得存有泥浆，冰块等杂物，被修补的坑槽应有整齐的切边，废渣的清除要见到固体坚固面为止。
Determine the excavation location of the pit, after milling or cutting around, clean up the gravel and waste residue in and around the pit to be repaired. No slurry, ice and other debris can be stored in the pit. The repaired pit should be trimmed neatly, and the removal of waste residue should see solid surface.
刷涂界面剂
Brushing Interface Agent
在清理好的坑槽四周及底部刷涂界面剂，尤其检查井钢模具 隔离墩模具 隔离墩钢模具 流水槽模具 U型槽模具 螺杆启闭机 卷扬式启闭机 铜雕佛像 是坑槽四周要涂刷均匀。这样新旧料粘合效果会更好。如果沥青路面坑槽修补，清理干净也可也不涂刷，根据实地情况而定。
Brush the interface agent around and at the bottom of the cleared pit, especially around the pit. In this way, the bonding effect of new and old materials will be better. If the pit of asphalt pavement is repaired, it can be cleaned and not painted, depending on the actual situation.
冷补料填满坑槽
Filling pit with cold filling material
把足够的华通冷补料填进坑槽内，直到填料高出路面l1.5cm左右，填满后坑槽中央处应稍高于四周路面并呈弧形，若路面坑槽深度大于7cm时，应分层填补，逐层压实，每层3—4cm。
If the depth of pavement groove is greater than 7 cm, it should be filled in layers and compacted layer by layer, with 3-4 cm per layer.