9. Special Situations

Multiple Lifts (Specific to Micro Surfacing Only)

Micro surfacing has the added strength and stability to allow placement of multiple lifts at heavier application rates.  There is an optimal rate specific to...

Cul-de-Sacs

A cul-de-sac has only one inlet/outlet that dead ends in a traffic circle.  If the application equipment cannot navigate the full radius of the circle,...

Excessively Rich, Flushed, or Bleeding Asphalt Surfaces (Specific to Micro Surfacing Only)

Special application techniques are necessary when applying micro surfacing over pavements with excess asphalt on the surface.  Because the flushed area lacks surface texture, it...

Expressway Shoulders and Ramps

Traffic is a concern in these areas due to high speeds and extended work zone lengths.  On and off ramps/gore areas create a need for...

Filling Large Cracks

Due to economics and because conventional crack sealants are not typically designed to seal excessively large cracks, some projects may require the use of a...

Grinding and Milling of Pavement (Specific to Micro Surfacing Only)

Micro surfacing is a very effective method of covering a finely textured, full-lane drum milled section of pavement.  The cold milling machine equipped with automatic...

Partial Width Passes

Occasionally it is not possible to apply a slurry surfacing treatment using all full width passes.  To avoid overlap in such cases, partial width passes...

Placing Next to Structures

Mixture being discharged from the pugmill and the action of the augers in the spreader box can splash the slurry surfacing on adjacent buildings or...

Protecting Special Markings and Utility Castings

Although masking special pavement markings was common practice in the past, it is now believed that the ridge created around the stencil creates a ponding...

Rolling of Slurry Systems

Seldom required for most slurry surfacing systems, rolling is used for some airport projects and parking lots that may not receive the desired traffic compaction...

Thermo Plastic Markings/Plastic Tape Markings

It is important to remove any thermoplastic and plastic tape lane delineation markings before applying a slurry system treatment.  The treatments will not adhere properly...

Grade Flow

Slurry surfacing mixtures may flow by gravity on crowns, super elevated curves, and steep grades.  Spreader boxes that are not equipped with an auger distribution...