***Recommended AWP-2000F fiber reinforced bridge deck Waterproof coating Manufacturer pin Package freight
1、 Product introduction:
AWP-2000F fiber reinforced waterproof coating With high quality asphalt As the base material, the film forming waterproof coating made by adding modified raw materials is sprayed with short fibers during construction and integrated with the waterproof coating to form a reinforced bonding layer film that can resist tension and shear. It is an ideal waterproof coating for bridge deck waterproof layer or concrete base structure with serious settlement. The product quality meets the standard of JC/T975-2005 Waterproof Coatings for Road and Bridge.
2、 Scope of use:
It is applicable to waterproof works such as highway bridges, urban overpasses, bridges and culverts, and can prevent corrosion of reinforcement caused by water seepage of concrete bridge deck, thus improving the service life of beams.
This product is harmless , tasteless, no environmental pollution, cold construction; The main advantage is that the rubber in the modified asphalt forms a continuous network and penetrates each other, and cross-linking makes the modified asphalt show polymer properties; After the film is dry, keep the rubber elastic and flexible at low temperature; It has strong shear resistance and can withstand the long-term load of the bridge deck and compression requirements, which can prevent structural damage caused by water seepage and delay the service life of highway bridges. It is an ideal waterproof material for bridge deck, and can also be used for roof, underground, tunnel, tunnel and other projects to prevent water, seepage and corrosion, wall Waterproof and moisture-proof. The waterproof material not only has good waterproof performance, but also can absorb the stress and noise of the road and bridge deck as the stress absorption layer; Because it has certain elastic and plastic deformation capacity, it can bear the load without being damaged. Alleviate the aging of road and bridge pavement and delay the service life.
III Product characteristics:
1. Good heat resistance, its composition and performance will not change at the set paving temperature of asphalt concrete;
2. In cold climate, throwing has good flexibility;
3. The waterproof layer is between the concrete and asphalt concrete, which has a good bonding performance, bonding the asphalt concrete and cement concrete into a unified whole;
4. It has high tensile strength and deformation resistance, and can withstand the impact of load and structural deformation.
5. The waterproof layer has good aging performance.
1. Foundation surface treatment before construction
The new concrete bridge deck shall have a curing period of at least 7 days, and it is recommended to use sand blasting to roughen it.
（ 1) Firstly, the bad attachments on the road surface shall be removed, and the sand and debris on the road surface shall be cleaned. The places with oil stains shall be specially treated, which can be dissolved by solvent;
（ 2) After the road is cleaned, sand blasting machine is used for sand blasting, so as to remove laitance on the road and some sundries that are not firmly attached, and make the road cleanliness and roughness meet the requirements;
（ 3) The interface can be completely purged and dried by professional hair dryer.
Base course cleaning:
The surface of the base course shall be compacted and flat, and free of crisp, sanding and peeling. In order to improve the cohesion and shear strength between the waterproof layer and asphalt concrete pavement and the concrete base course, the concrete base course must be milled. Shot blasting machines, planers and milling machines should be used for milling, or roughening machines should be used for roughening to effectively remove laitance and obtain clean, hard and rough pockmarks.
2. Coating construction of waterproof layer:
High pressure airless spraying equipment shall be used for mechanical spraying. High spraying pressure and uniform spraying can ensure good embedding and bonding of coating and concrete pavement. The waterproof layer can be sprayed for several times according to the engineering grade and thickness requirements until it meets the standard requirements agreed in the design or contract The next spraying shall be carried out after the film is dry each time, and the spraying shall be carried out along the wind.
3. Fiber reinforced layer setting:
According to Technical Specification for Waterproof Engineering of Urban Bridge Deck CJJ139-2010 requires that the waterproof layer of bridge deck should be provided with short fiber and other matrix materials as the reinforcement layer. When spraying the second layer of waterproof coating, use a special short fiber sprayer to spray short fibers. After the coating is dry, spray the third layer of AWP-2000F enhanced waterproof coating for coverage. It is required to spray evenly to form a continuous grid matrix
4. Construction amount: General surface course 1-2kg/㎡, which can be adjusted according to the project grade.
Construction method: manual roller coating, brush coating or mechanical spraying
AWP-2000F distribution
（ 1) Material consumption: 0.5kg-0.7kg/m2.
（ 2) After the interface is clean and completely dry, the construction of AWP-2000F can be carried out. Manual coating and spraying can be used.
Manual coating:
Before construction, pour it into a container of appropriate size, mix it slightly for 3-5 minutes, and then the operator will use a roller to evenly coat it on the cement concrete or other disposal base surface. This method is generally recommended. The roller coating shall be as uniform as possible;
Spraying construction:
When the area is not large, the construction can be carried out manually with a spray gun, and the operator can hold the spray gun and apply evenly. In case of large road area, asphalt distributor can also be used for distribution, but the distribution amount shall be strictly controlled and the distribution shall be uniform. Note that when spraying construction is adopted, the pipeline shall be cleaned in time after spraying to avoid blocking the pipeline. At the same time, attention shall be paid to mixing evenly when using large barrels to prevent air from pouring in.
note appended:
In order to achieve good construction effect, AWP-2000F needs to be implemented in two times. The time interval between the first and second implementation should be 4~8h under normal temperature. After the construction of AWP-2000F twelve Hours, the construction of asphalt layer can be carried out.
