As an important municipal transportation auxiliary facilities, lane pavement marking has divided, guide the traffic flow, form the channelized traffic, and so on. Main delimited on pavement marking on the road surface, long withstand sun rain and suffer from vehicle impact abrasion and when to road transportation space need to be redrawn, must be to remove the old pavement marking. If the old pavement marking were not thoroughly remove or clear the road after injury and asphalt oil off large area, no doubt increased the line maintenance cost in the future. How to effectively eradicate the old line, become the primary problem of line maintenance. Problem analysis: after due to remove the original line, the original position is no longer new cross line, so need to completely remove the old line. Main goal of the work is to thoroughly remove road original marking, utmost ground to avoid subsequent new cross line caused confusion.
1. The analysis method, ring, etc, found mainly exist the following problems: the construction personnel technical level varies, training is not enough. Worn equipment grinding, part of the grinding head. Cleaning tool is not dense, not clean. Daub of tar oil bonding performance is poor. Construction method improper selection, resulting in poor polishing quality, daub asphalt dosage of oil shortage and daub the early wear and tear, etc. The weather impact on the environment, such as surface humidity and water.
2. Study the problem solution to the current domestic clean up old marking method has two kinds: one kind is grinding method, applies only to the asphalt pavement, and the use of hot melt old line machine for construction. The other is a paint covering method, the method applied to asphalt and concrete pavement. Grinding method is to use the engine driving hard alloy grinding head made of high speed, grinding head under the effect of rotating centrifugal and bumps on part of the road, the old line, with old hot melt marking removal machine for construction, often can cause different degree of pavement damage, and often leads to a certain number of lines.
3. While painting over the effects on the construction of the road is small, the domestic common USES are covered with black paint, but in this way, after a period of time wear, aiming at the problem of paint covering method is easy to fall off, made the following solutions: paint covered by a certain degree of loss, and repair maintenance must be conducted.
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