What spray system design is required for consistent SS-60 bitumen emulsion application?

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  • #1286
    Josip
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    What spray system design is required for consistent SS-60 bitumen emulsion application?

    #1287
    Jason
    Participant

    Consistent SS-60 spraying needs stable pressure control, correct nozzle spacing, and a calibrated rate controller linked to vehicle speed. Use an emulsion compatible pump with low pulsation, a recirculation loop for uniformity, and filtration matched to nozzle orifice size. The spray bar must provide correct fan overlap and adjustable height to maintain uniform transverse distribution. Include a pressure gauge at the bar, section controls, and a circulation mode to prevent settling during delays. Field calibration with tray tests verifies real application rate and uniformity.

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