breaking behaviour

Slurry Surfasing was investigated using over-stabilised emulsions and highly reactive stone material with a methylene blue index of 18 at high temperatures. Unmodified emulsions were produced on four different emulsifiers at the same dosage -1.2% by mass of the bitumen emulsion itself. Slurry Surfasing was designed on the basis of the investigated emulsions, screening of the 0-4 mm fraction, water, Portland cement and mix time regulator.

Formulations of road over-stabilized cationic bitumen emulsions with orthophosphoric, sulfuric and hydrochloric acids and cationic emulsifiers for slowly disintegrating emulsions have been designed. The physical and mechanical properties of the manufactured over-stabilized bitumen emulsions and their breaking behavior were determined. It has been established that over-stabilised bitumen emulsions demonstrate good storage stability for 180 days.