Base treatment - Sandblasting - Apply bridge deck coating evenly - Apply glass fiber reinforced layer - Apply second coat of bridge deck coating - Apply second layer of glass fiber reinforced layer - Apply third coat of bridge deck coating - Layer maintenance.
The surface of the concrete road and bridge subgrade should be compacted and level, without any loose, sandy, or frothy cement.
2. To enhance the bonding strength and shear resistance between the bridge deck layer, concrete paving layer, and asphalt paving layer, the concrete subgrade must be shot-blasted to remove the surface laitance, resulting in a hard and rough textured surface.
3. In accordance with the requirements of the "Technical Code for Bridge Deck Engineering of Urban Bridges" CJJ139-2010, the deck layer should be reinforced with short fiber matting materials. While applying the second coat of paint, use a short fiber sprayer to apply glass fiber. After the paint has dried, apply three coats of deck paint for coverage, ensuring even distribution and forming a continuous mesh-like mat.
Other important notes:
1. Ensure thorough mixing of the paint before or during application to prevent sedimentation, which may affect the application process and construction quality.
2. The construction environment for the bridge deck meets the requirements of the selected coating. Attention should be given to changes in weather, with the construction environment temperature not exceeding the normal film-forming temperature of the coating.
3. Typically, when applying coatings for bridge deck construction, brush painting and spray machine application methods are commonly used. The nature of the coating varies, and so do the processes and tools, hence it's necessary to prepare the corresponding construction equipment and tools based on the actual situation.
That covers the precautions to take during the application of bridge surface anti-coating. The bridge deck plays a crucial role in the increasing construction of bridges, so ensure there are no mistakes during the construction process; otherwise, it can cause significant damage to the bridge deck.
