Main performance indexes of water-based asphalt based bridge deck waterproof coating

The water-based asphalt based bridge deck waterproof coating is a polymer composite material, which is a national key science and technology promotion project. It has reached the * * level of similar products after being identified by relevant personnel of the national department. The water-based asphalt based bridge deck waterproof coating products have been tested by the Highway Engineering Testing Center of the Ministry of Communications, and all technical indicators meet the requirements of JT/T575-2005 standard; It is a new type of composite waterproof coating, which conforms to JTT041-2000 (Technical Specification for Construction of Highway Bridges and Culverts), and is produced by using special domestic asphalt or imported petroleum asphalt as the main raw materials, adding various surfactants and chemical additives, SBS thermoplastic rubber as auxiliary raw materials, and adding a large amount of high molecular polymer resin for modification.

2、 Product characteristics:

1、 Waterborne asphalt based bridge deck waterproof coating The construction process is simple. The construction can be done by mechanical spraying or manual painting. The drying is fast and the construction period is short.

2. The cost of waterproof layer of water-based asphalt based bridge deck waterproof coating is cheap. Generally, it only needs to be painted three times to achieve waterproof effect.

3. The waterproof layer of water-based asphalt based bridge deck waterproof coating is firmly bonded with the base course, and the waterproof layer is firmly bonded with the upper asphalt concrete.

3、 Scope of application:

Waterborne asphalt based bridge deck waterproof coating is applicable to highway bridges, urban overpasses, bridges and culverts and other waterproof projects.

4. Base course treatment: the base surface shall be free of dust, floating ash, impurities, oil stains, etc. Before the waterproof layer is made, the surface can be cleaned by air compressor, water purification, degreasing agent, etc. If there are hard sundries such as concrete and mortar, they should be polished off.

（2） Construction steps of waterproof layer: (take three coats as an example)

1. The barreled coating shall be stirred evenly before painting.

2. Before large-area painting, use a small brush to paint the leak twice, and apply waterproof paint three times on the internal corners, and then brush the paint on a large area.

3. The second coating can be applied after the coating is dry.

4. The second coat of paint shall be applied after the surface is dry.

5. Coating amount: 0.5-1.5kg/m2.

6. The construction temperature should be 0~35 ℃, and it is not suitable for construction in rainy days and freezing periods.

5、 Packaging:

50kg plastic bucket is used for water-based asphalt based bridge deck waterproof coating

6、 Transportation:

Waterborne asphalt based bridge deck waterproof coating is harmless and nonflammable, and can be transported by general transportation mode.

7、 Storage:

The storage period of water-based asphalt based bridge deck waterproof coating products is 6 months, which should be stored in a warehouse above 0 ℃. In summer, sun exposure should be avoided.

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