Walking type power cut hair machine cut chisel of traditional mechanical methods: MAO was a blow with a sharp tool in the concrete surface of the piston stroke, make the new and old concrete bonding firm. But there are all kinds of the disadvantages of traditional cut hair method, such as low efficiency, mechanical oscillation force caused by sound waves, the damage was MAO subject which affects the service life of the cut hair subject. Now in a small area of the cut hair cut hair cut hair (local, elevation, side cut hair, cut hair top face), can use a handheld machines, small chisel effect is good, and will not damage the original structure.

1. Because now many chisel MAO machinery products will not only destroy the protective layer of reinforced concrete, and can cause damage to the original structure and even catastrophic damage, so now in many engineering especially bridge, tunnel concrete demolition of MAO, chisel many large machinery has been banned from use.

2. Use the safest and most is the high pressure water jet cut hair "condition". Bridge deck chisel MAO construction method the construction meet the design requirements of concrete bridge deck pavement layer when the concrete strength, surface smooth, clean, no pollution, impurities, oil stain, dust, etc.

3. The first machines of bridge deck pavement concrete surface with a chisel cut wool processing, the floating on the surface of the pulp, sundry chisel, then use the steel wire brush cleaning machine, with a fan or a vacuum cleaner to clean off, fine grained, turn the high-pressure spray on them again, after being dry, construction can be achieved.