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Emulsifiers are chemical additives used in bitumen emulsions to stabilize the mixture of water and bitumen. These agents ease the dispersion of bitumen droplets within the water phase, ensuring a stable and consistent emulsion that can be applied effectively in road construction. Without emulsifiers, bitumen and water would quickly separate, resulting in an ineffective emulsion.
Emulsifiers reduce the surface tension between the water and bitumen, allowing them to mix uniformly. Depending on the desired application (1), emulsifiers can create cationic or anionic emulsions.
The addition of emulsifiers makes bitumen emulsion suitable for cold applications, which significantly reduces energy consumption since heating is not required. Emulsions also allow for quick road reopening, as the water evaporates, leaving behind a durable layer of bitumen.
(1): Surface dressing - Tack coat – Cold mixes – Micro-surfacing – Gravel emulsion – Penetration prime coat – Recycling – Industrial
Emulsifiers reduce the surface tension between the water and bitumen, allowing them to mix uniformly. Depending on the desired application (1), emulsifiers can create cationic or anionic emulsions.
The addition of emulsifiers makes bitumen emulsion suitable for cold applications, which significantly reduces energy consumption since heating is not required. Emulsions also allow for quick road reopening, as the water evaporates, leaving behind a durable layer of bitumen.
(1): Surface dressing - Tack coat – Cold mixes – Micro-surfacing – Gravel emulsion – Penetration prime coat – Recycling – Industrial
Emulsifiers
Applications
Products
ValoChem range of emulsifiers, named ValoSurfTM, offers several advantages:
Binder properties:
Application benefits:
Binder properties:
- Stabilizing bitumen and water mixture, preventing separation.
- Enhanced bitumen adhesion to aggregates.
- Increasing workability and handling of emulsions
Application benefits:
- Enabling quick road reopening after application.
- Extended shelf life
Emulsifiers
Applications
Products
Crosslinking is a process that forms a three-dimensional polymer network by chemical reaction into PmB. Hence, storage stability of modified bitumen is highly improved. When only a linear SBS was usable, it becomes possible to use a radial SBS.
Our crosslinkers are using sulphur as crosslinker agent. They are designed to control the emission of the sulphur species generated during the crosslinking, to ensure the safety of the operators, and to limit the risks during bitumen modification.
Our crosslinkers are using sulphur as crosslinker agent. They are designed to control the emission of the sulphur species generated during the crosslinking, to ensure the safety of the operators, and to limit the risks during bitumen modification.
Emulsifiers
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