[Czeslaw]

In which road construction conditions are anionic bitumen emulsions technically preferred?

[Ryan]

Anionic emulsions can be preferred when local specifications and proven field history show compatibility with the available aggregates and fillers, especially where alkaline conditions and certain mineralogies support good coating and controlled breaking. They may be selected for specific cold mix designs and slurry applications where workability time is needed. The decision must be verified with aggregate coating and breaking tests using local materials, because clay contamination and moisture can change behavior. In practice, many road agencies prefer cationic systems for broader aggregate compatibility, but anionic remains viable in defined scenarios.

[Author]

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