How to waterproof the bridge deck? The bridge deck waterproof construction should find a reliable waterproof construction team, a good waterproof construction team, with professional waterproof plugging experience Waterproof works Rich experience in waterproof and leak proof construction plus good deck Waterproof coating To ensure the bridge deck Waterproof works Quality.
This is Guangdong Dexini Building Materials Waterproof Series Road and Bridge Waterproof coating Product: Decini waterproof FTY-1 improved deck Waterproof coating (referred to as FTY-1) Waterproof coating ）It is made of high-quality heavy traffic asphalt as the base material and modified with rubber and resin materials Waterproof coating It is a water-based reaction product with polymer emulsion as the main film-forming material and adding a variety of functional additives Waterproof coating 。
What are the characteristics of FTY-1 modified bridge deck waterproof coating products? The road and bridge waterproof coating product has wide temperature adaptability. During asphalt concrete construction, the asphalt concrete will not flow at high temperature of 140 ℃~180 ℃, and will not be brittle under the action of dynamic load at low temperature of - 20 ℃~- 30 ℃; After use, the cured film forming block has good film forming toughness. Due to the addition of chemical additives in the materials, the materials can form films in a short time, shortening the construction time of bridge deck waterproofing; The adhesive force is strong. Penetrant and tackifier are added in the formula to improve the permeability and bonding performance of the coating, which can bond the pavement layer and the bridge deck as a whole. The shear strength of bridge deck and pavement layer reaches 0.5~1.0Mpa, the base layer cracks 2mm, and the coating film does not crack.
During the construction of FTY-1 modified bridge deck waterproof coating, the foundation surface shall be treated first, and the base shall be clean, flat, solid, and free from sanding, pulverization, peeling, cracks, etc. The coating can be made of non-woven fabric or glass fiber cloth as reinforcement material, or it can not be made of reinforcement material. Next, gather a good waterproof net to introduce the selection of construction methods of waterproof coating for lower bridge deck
The bridge deck waterproof coating can be brushed or sprayed during construction. In principle, multi-layer painting is adopted.
The bridge deck waterproof coating can be properly diluted before and during painting. When the temperature is high in summer, construction under the intense sun should be avoided to avoid blistering of the primer due to the rapid evaporation of water.
Later, construction is not allowed when the temperature is lower than 5 ℃ and it rains or it is expected to rain within 6 hours.
Relevant suggestions
Good. Before the construction of waterproof layer, the surface of the base course must be cleaned to make the base plate clean and tidy. The next step of construction can be carried out only after the construction requirements are met. Second, after the construction of the waterproof layer, if conditions permit, it should be immediately closed for management. After the accident, there is no regular pollution, and the specified maintenance should be carried out. During the maintenance, illegal operations should be prevented, and vehicles should be prohibited to pass, so as to prevent the waterproof layer from being damaged. Third, after the curing period is over, vehicles with a weight of less than 10 tons can be driven on the asphalt concrete surface before construction, but no bending, reversing, emergency braking, etc. are allowed. Vehicles over 10 tons are forbidden to pass. No articles shall be stacked on the constructed waterproof layer to prevent man-made damage.
epilogue
In a word, as a modern road and bridge construction enterprise, it is necessary to pay attention to the construction technology of road and bridge waterproof layer, practically master the construction technology and quality control points of waterproof coating spraying, coiled material waterproof layer and cement mortar leveling layer, and endow modern management mode to continuously improve the construction quality of road and bridge waterproof layer, so as to protect people's life and property safety.
