Extend Pavement Life and Improve Safety with Slurry Seal — an efficient, preventative treatment that seals, preserves, and restores skid resistance in a single pass.
Slurry Seal is a cold mix blend of high quality crushed aggregates, asphalt emulsion, water, and mineral fillers, mixed together according to a predetermined mix design from a laboratory.
It is applied to an existing surface, such as surface treatment or pavement, that is still in fair to good condition, as a means of a cost effective preventative maintenance. It reduces deterioration by sealing, prevents further oxidization, corrects raveling and provides or replaces a high degree of skid resistance.
Slurry Seal is applied with a spreader box, which is connected to the slurry mixing unit, as shown on the right. The box is the width of a single lane, allowing a uniform spread of material in a single pass.
Crews ahead of the unit set up traffic control, and sweep the surface before applying the slurry seal. Operators of the units monitor the mixing and application. After a short curing time, traffic will be allowed to resume use of the freshly rehabilitated lane.
AGGREGATE GRADATION
There are three types of Slurry seal commonly used, each using a different size of aggregate;
TYPE I
Slurry Seal
(Fine Aggregate, 1/8” max)
Used For Lower Traffic Volumes and Maximum Crack Penetration.
Recommended Application Rates Are: 4.3-6.5 kg/m²
TYPE II
Slurry Seal
(General Aggregate, 1/4” max)
Most Commonly Used Slurry. Good For Moderate to High Volume Roads.
