[Ryan]

How is bitumen emulsion viscosity measured and controlled during production?

[Benedetto]

Viscosity is measured at a specified temperature using standard viscometers defined by the relevant specification. Control is achieved by maintaining tight solids content, consistent droplet size distribution, and stable chemistry of the aqueous phase. Operators manage bitumen water ratio, emulsifier dosage, pH, temperature, and milling energy. Inline monitoring can track temperature, density, and flow ratios, while lab checks confirm viscosity and stability. If viscosity drifts, the typical causes are water quality changes, incorrect chemical dosing, bitumen temperature swings, or mill wear affecting particle size. Corrective actions should be documented in a production control plan.

[Author]

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