[Jonathan]

What quality control tests are required for emulsions asphalt before shipment to contractors?

[Diedrich]

Typical QC includes binder content, viscosity at a specified temperature, sieve residue, storage stability, pH, particle charge, and demulsibility or breaking behavior. Residue tests after evaporation often include penetration and softening point, and for polymer modified products, elastic recovery or related performance measures. Many buyers also require density or specific gravity for calibration, plus checks for contamination and homogeneity. For critical jobs, compatibility tests with local aggregates and field spray calibration results are included. Contractors should demand a certificate of analysis tied to the batch and the referenced test methods.

[Author]

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