Road Construction, Asphalt Paving, Bitumen
Estimated presently at 20% of the global bitumen use, bitumen emulsions are basically an O/W – Oil on Water solution – A dispersion of bitumen particles on water, stabilized with the addiction of surfactants – Surface active agents – or most commonly known as emulsifiers, that will permit the bitumen to de diluted in water. They are primarily used for tack coats for use in between hot mix asphalt layers and prime coats for thin hot mix surfacing layers or a chip seal pavements.
Bitumen emulsions are divided into three categories:
Anionic with negatively charged globules
Cationic with positively charged globules
Non-ionic with neutral globules.
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