Asphalt Emulsions

Maintenance on Colloid MillAsphalt emulsion is a combination of three basic ingredients; asphalt, water, and small amounts of emulsifying agent. In the same process, these components are introduced into a mechanism known as a colloid mill, which shears the asphalt into tiny droplets. The emulsifier, which is a surface-active agent, keeps the asphalt droplets in a stable suspension and controls the breaking time. The result is a liquid product with a consistency ranging from that of milk to heavy cream, which can be used in cold processes for road construction and maintenance.

Applications For Asphaltic Emulsions

Asphalt emulsions are used in cold processes for road construction and maintenance. Emulsions are classified on the basis of how quickly the asphalt droplets will re-coalesce (break and setup). The terms rapid set (RS), medium set (MS), quick set (QS) and slow set (SS) have been adopted to classify the emulsions. A letter “C” in front of the classification denotes cationic systems while the absence of a letter in front of the classification denotes anionic systems.

Rapid set (RS) emulsions are typically used for in chip seals, while quick set (QS) emulsions are used in slurry and microsurfacing applications and for fog seal or tack coats.  Slow set (SS) emulsions are also used for fog seasl or as tack coat.

Telfer produces many different types of emulsions to meet the varying demands of its' customer base.

Emulsion Products

The following emulsions are manufactured by Telfer Companies in Martinez, California.

CRS-2 Cationic rapid-set Chip Seal
CRS-2H Cationic rapid-set, hard base Chip Seal
PMCRS-2H Latex-modified, Cationic rapid-set, hard base Chip Seal
PMCRS-2 Latex modified, Cationic rapid-set Chip Seal
CSS-1 Cationic slow-set Fog seal, tack coat, dust palliative, plant mixes, soil stabilization, in place mixes, driveway sealers
CSS-1H Cationic slow-set, hard base Fog seal, tack coat, dust palliative, plant mixes, soil stabilization, in place mixes, driveway sealers
Crackfiller 70 Cationic slow-set Crack sealing, crack filling
PMCQS-1H Latex-modified cationic Slurry seal
CQS-1H Cationic, quick-set, hard base Slurry seal
PMRE
Cationic Polymer modified rejuvenating emulsion for use in chip and scrub seals
RS-1 Anionic rapid-set Chip seal, tact coat, sand seal
RS-2 Anionic rapid-set Chip seal
SS-1 Anionic slow-set Fog seal, tack coat, dust palliative, plant mixes, soil stabilization, in place mixes, driveway sealers
SS-1H Anionic slow-set, hard base Fog seal, tack coat, dust palliative, plant mixes, soil stabilization, in place mixes, driveway sealers
SS-1HH Anionic slow-set, very hard base Fog seal, tack coat, dust palliative, plant mixes, soil stabilization, in place mixes, driveway sealers
ERA 25 Nonionic Recycling, in place mixes
ERA 75 Nonionic Recycling, in place mixes
ARA Nonionic Recycling
AWP Base Modified asphalt cut-back Pothole patch base