In highway maintenance work, crack repair is an important task that cannot be ignored. If cracks are not treated in a timely manner, moisture and debris can easily infiltrate, causing damage to the roadbed and further exacerbating the spread of road diseases. To ensure road surface quality and extend road service life, using a professional highway crack filling machine is an effective method for repairing cracks.

Comparison of Characteristics between Highway Grouting Machine Models 200L and 520L

1.200L highway grouting machine

The 200L highway grouting machine is a medium-sized equipment suitable for crack repair in municipal roads, small rural roads, parking lots, and other places. Its 200 liter capacity design can meet the needs of medium-sized projects and has high operational efficiency. The 200L grouting machine is easy to operate and flexible to move, suitable for various construction environments, especially in busy urban traffic areas. Construction personnel can complete crack filling tasks in a short period of time.

2.520L highway grouting machine

The model 520L highway grouting machine is suitable for large-scale highway maintenance projects, especially highways, large urban roads, etc. The 520 liter capacity design not only meets the needs of large-scale construction, but also significantly improves construction efficiency and reduces downtime during construction. This model of grouting machine is equipped with a stronger power system, suitable for long-term high load operations, and is suitable for maintenance projects with higher requirements.

Whether it is the 200L or 520L model, the construction process of the highway grouting machine is basically the same, mainly divided into the following steps:

1. Crack cleaning

Before grouting, the cracks need to be cleaned first. The debris, dust, and moisture in the cracks are the key to ensuring the effectiveness of grouting. Common cleaning methods include high-pressure gas blowing, scrubbing, and vacuuming. Only by thoroughly cleaning the cracks can we ensure that the grouting material is firmly bonded to the crack wall and improve the sealing effect.

2. Heating of asphalt materials

The heating system equipped with the grouting machine uses thermal oil or electric heating devices to heat the asphalt material to a suitable temperature (usually 180 ℃ -200 ℃). During this process, the heating equipment needs to ensure that the material is uniformly heated, avoiding overheating or insufficient heating, and ensuring good fluidity of the grout material.

3. Grouting operation

The heated asphalt material is transported by the injection system to the crack filling port, and the hot melt asphalt is evenly injected into the crack through a precisely controlled nozzle. The grouting machine can adjust the grouting amount according to the width and depth of the crack, ensuring that the material fully fills the crack and achieves the repair effect.

4. Material solidification and cooling

After the grouting is completed, the grouting material will gradually solidify as the temperature decreases, forming a hard sealing layer to prevent moisture infiltration and prevent further crack propagation. This process usually requires a certain amount of time, and the operator of the grouting machine should pay attention to the construction temperature and the cooling time of the materials to ensure the repair effect.

5. Inspection and Closing

After completing the grouting, it is necessary to check the repair effect to ensure that the cracks are completely filled and there are no omissions. If uneven or missing grouting is found, secondary repair can be carried out. Clean up the construction site to ensure that no materials or tools are left behind during the construction process.

Whether it is a 200L highway grouting machine or a 520L highway grouting machine, they both have high energy efficiency and precise construction characteristics, which can quickly repair cracks, prevent water infiltration, and extend the service life of roads. The 200L model is suitable for crack repair on small and medium-sized highways and urban roads, while the 520L model is more suitable for large-scale, high-frequency maintenance operations.

By using these grouting equipment reasonably, construction efficiency can be significantly improved and maintenance costs can be reduced in the later stage. Whether it's municipal roads, highways, or rural roads, road grouting machines are important tools for road maintenance and crack repair. Choose the appropriate grouting machine to ensure road safety, extend the service life of the road, and make your maintenance work easier, more precise, and energy-efficient.