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Adhesion Promoter for Hot and Warm Mix — cationic type DAD-K


Surfactant based on polyamide-amines and imidazolines of fatty acids. Provides high degree of bitumen adhesion to different aggregates with high acidic properties. DAD-K improves and accelerates wetting and covering of the surfaces of mineral materials and thus increases adhesion of bitumen to filler.

Homogeneous dark-brown viscous-flow liquid recommended both for manual and automated injection into a bitumen binder in an asphalt plant.

Concentration of injection:0,15 – 0,5% of bitumen weight.
Average efficient dosage of the preparation:0,3% of bitumen weight.

The amount of preparation is selected based on preliminary laboratory testing for a specific composition of an asphalt mix.

Main Advantages

Lowered Concentration of Injection
Minimum concentration of DAD-K agent injection is just 0.15% of bitumen weight. Such low consumption of the agent allows to save transport costs and the storage space.

Perfect Adhesion with Acid Rocks
Based on their chemical nature, amine cation-active adhesion agents provide stronger chemical bonds between bitumen and acid filler rocks as compared to other types of agents.
Active Adhesion
Allows to reach good adhesion even at high moisture content of used aggregate.

Thermal Stability
Keeps its properties and does not lose activity at continuous heating in bitumen (163°C) within 72 hours.

Package and Storage

The preparation is supplied in metal barrels with volume of 216l or 52l and polymer containers with capacity of 1m3.
The preparation is stored in transport package or in hermetically sealed package. The preparation is stored in closed storage areas at distance of at least two metres from heating elements, at temperature from minus 35°C to 50°C, in open areas under sheds or in special heated tanks.

Guaranteed storage life is 1 year after manufacturing.

Application Technology

DAD-K may be added both into an operating reservoir at the stage of binder preparation and directly in the bitumen supply line of asphalt plant mixer.
The technology of production of bitumen modified by the agent includes:

  1. Heating of basic bitumen up to operating temperature
  2. Adding of DAD-K in specified amount
  3. Stirring until homogeneous mix is obtained



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