STP1079

    Evaporation-Filtration Test for Emulsion Inversion

    Published: Jan 1990


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    Abstract

    An evaporation-filtration test has been developed which attempts to characterize asphalt emulsions by inversion point. At usual asphalt contents, emulsions are of the oil-in-water type. After spraying, the water evaporates from the emulsion and the asphalt content increases, leading to coalescence, which would be expressed in terms of inversion to the water-in-oil type. The point at which this inversion occurs depends on many parameters. An investigation of some of these parameters is proposed.

    Keywords:

    emulsion inversion point, evaporation-filtration test, early cohesion, particle size distribution


    Author Information:

    Marchal, J-L
    Research engineer, ESSO Research Centre, Mont Saint Aignan,


    Paper ID: STP23513S

    Committee/Subcommittee: D04.41

    DOI: 10.1520/STP23513S


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