Bond/Tack Coats and Primers

Bond/Tack Coats and Primers

Eliminates slippage planes and provides a better bond between new and existing pavement layers.

A single application of either a specially formulated asphalt emulsion or a low-viscosity asphalt cutback is a very inexpensive standard requirement used to improve the bond between layers of pavement.  Proper bonding is essential to achieving a monolithic pavement/structure for optimal strength as per the design criteria. There are many different types of tack coats and emulsions.

A bond coat is a spray application of asphalt emulsion. It is applied to an existing asphalt or Portland cement concrete surface prior to a new asphalt overlay or patching. This eliminates slippage planes and provides a better bond between new and existing pavement layers.

Primers

A prime coat is a single application of either a specially formulated asphalt emulsion or a low-viscosity asphalt cutback. Its primary functions are to penetrate quickly into the granular surface, bind the material together, partially waterproof the granular surface to prevent water erosion, provide a temporary riding surface prior to overlay or seal coating, and provide a bond between the existing surface and the new wearing surface.

The asphalt emulsions used as prime coats typically contain a combination of asphalt and specially engineered agents that aid in penetrating the granular surface while binding the aggregate particles to achieve stabilization.

Safety Data Sheets

DescriptionPdf File
Anionic Rapid Setting EmulsionWHMIS Icon
Anionic Slow Setting EmulsionWHMIS Icon
Cationic Slow Setting EmulsionWHMIS Icon
Enviro-Colle EmulsionWHMIS Icon
Rapid Curing CutbackWHMIS Icon

Related Resources

DescriptionPdf File
Multiple Stress Creep Recovery (MSCR)TECH
Hot Mix Asphalt over Enviroprem Trial, Rte 8/Rte 107, ConnectorFIELD

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