High pressure water jet was introduced into China from the mid-1980s, and it was popularized and developed unprecedentedly in the mid-1990s. It is a high-tech technology and civil cleaning technology which is the dominant technology in the world.
Characteristics of high pressure water jet cleaning equipment
Now, the common ways to remove concrete include knocking, sawing and hand drilling. These methods are costly, laborious and time consuming, and are easy to pollute the environment and cause other damage to the building.
In view of this situation, Wuhan Maiji Environmental Protection Technology Co., Ltd. briefly describes the following contents: compared with traditional technology, high pressure water jet equipment has stronger competitiveness and innovation power, and has the following characteristics:
1. fast repair
The high pressure water jet crushing technology takes common tap water as the working medium. Because the nozzle of the high-pressure water jet crusher does not contact the cement concrete pavement directly, the nozzle can work at multiple angles, which greatly improves the working efficiency,
2. Wide application range
High pressure water jet can clean all kinds of pipeline equipment with full blockage, semi blocking, surrounding and surface scaling. The cleaning scale can be salt alkali scaling, impurity blockage, oil bond, carbon deposit, mixed sediment and paint rust combination. All parts of the water jet can be cleaned directly, and can be used in all walks of life;
3. small environmental pollution
There is no dust pollution and low noise in the process of high pressure water jet breaking pavement construction. No pollution environment: high pressure water jet cleaning will not produce a large amount of dust pollution environment, damage human health, and is different from chemical cleaning, and produce a large amount of acid-base waste liquid, which pollutes the city, river, soil and water source.
4. accurate operation scope
The nozzle aperture of the high-pressure water jet crusher is small. By setting the pressure value and water quantity of ultra-high pressure water jet, the crushing range and depth can be accurately positioned, so that the cut-out acting on the concrete surface is small and tidy, which reduces the quantity of crushing waste to a certain extent and improves the utilization rate.
5. the original structure is not damaged
There are two main characteristics in the damaged area of high pressure water jet breaking: one is that there is no vibration during operation, and no cracks will be generated in the surrounding concrete structure, reducing the risk of secondary damage; the second is that the reinforcement density in the damaged area is large and the void is small, so the high-pressure water jet is difficult to drill into the steel bar, so the reinforcement will not bend or break, and the rust removal effect is achieved. Therefore, the damage degree of crushing to the original structure is almost zero.
6. strong binding force
The broken concrete interface is hard and uneven and neat, and the contact area between the original structure and the new concrete is larger and the bonding force is stronger. The new cement concrete can be directly paved without treatment, which provides favorable conditions for the highway integrated construction.
