What is asphalt micro surfacing?

What is asphalt micro surfacing?

Microsurfacing is similar to slurry seal. It consists of the application of a mixture of water, asphalt emulsion, aggregate (very small crushed rock), and chemical additives to an existing asphalt concrete pavement surface. Slurry relies on evaporation of the water in the asphalt emulsion.

What is the difference between micro surfacing and slurry seal?

The major difference between slurry seal and microsurfacing is in how they “break” or harden. Slurry relies on evaporation of the water in the asphalt emulsion. The asphalt emulsion used in microsurfacing contains chemical additives that allow it to break without relying on the sun or heat for evaporation to occur.

What is micro surface pavement?

Micro surfacing is a pavement preservation treatment application which extends the life of existing roads by improving surface distresses. The micro surfacing mixture consists of 100% manufactured aggregate, polymer-modified asphalt emulsion, water, and additives.

How much does Microsurfacing cost?

At an average cost of $2.75 per square yard, micro surfacing allows for roughly six to eight years of roadway life extension at a fraction of the cost of major road reconstruction. Micro surfacing halts oxidation and raveling and can be used to increase surface friction, address profile leveling and to fill ruts.

What is full depth reclamation?

A very popular reconstruction alternative is known as Full-Depth Reclamation (FDR). FDR is an in-place recycling method for reconstruction of existing flexible pavements using the existing pavement section material as the base for the new roadway-wearing surface.

What is the purpose of slurry seal?

Slurry seal is applied in order to help preserve and protect the underlying pavement structure and provide a new driving surface. Roads chosen for slurry seal applications generally have low to moderate distress and narrow crack width.

What is cold in place recycling?

Cold In-place Recycling (CIR) is defined as a rehabilitation technique in which the existing pavement materials are reused in place. The reclaimed asphalt pavement (RAP) material is obtained by milling, planing, or crushing the existing pavement.

What is surface dressing in road construction?

Surface Dressing is a mixture of polymer modified bitumen emulsion and a layer of chippings. It will seal the surface, improve surface texture and prolong the life of the road by many years.

How much does a fog seal cost?

At an average cost of $0.40 per square yard, a conventional fog seal can extend the life of a roadway by roughly one to two years, making it one of the most cost-effective preventative maintenance treatments.

How long before you can drive on slurry seal?

Slurry Seal requires only a few hours to dry before traffic can drive over it but it takes 24 to 48 hours to cure completely.