SYMPOSIA PAPER Published: 01 January 1990

Evaporation-Filtration Test for Emulsion Inversion


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.

Author Information

Marchal, J-L
ESSO Research Centre, Mont Saint Aignan, France
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Developed by Committee: D04
Pages: 106–111
DOI: 10.1520/STP23513S
ISBN-EB: 978-0-8031-5137-6
ISBN-13: 978-0-8031-1457-9