Paving process

Micro-resurfacing:

Micro-resurfacing could be the application of a Polymer Modified Emulsion Base. The entire road area is overlaid (the materials is put over the surface of the current asphalt area of this road) with 1/2 to 3/4 inch of material. The level of material placed on the street depends upon the condition of the existing roadway area. If road surface is in fair condition, 1/2 inches of material is employed. If the surface is within poor problem, 3/4 inches of product can be used. This procedure is completed by a contractor working for the town of Pittsburgh. $3.09 per square yard.

The town of Pittsburgh was utilizing this procedure for two many years. Using the micro-resurfacing process should expand the life of a preexisting street 2 to 5 years (estimate).

Flexible Base Pavement:

Flexible Base Pavement is the application of a Polymer changed Latex Asphalt applied at an ambient temperature (100 to 140 degrees Fahrenheit). This can be a flexible material, that will be used mainly on secondary, tertiary, alleys, and unimproved roads without any base. Use of this material is a really inexpensive means of enhancing a road surface. Living expectancy of a road which makes use of this product is 10 to 12 years (estimate). Use of this technique were only available in 1993, and it is at this time carried out by specialist for City of Pittsburgh. The town's goal would be to eventually do this technique in-house. $5.30 a square garden.

Crack Sealing:

Break Sealing is the method where in actuality the road cracks tend to be sealed using a Polymer Modified AC-20 liquid (AC-20 may include crumb-rubber recycled tires), also types of Crack Sealing services and products. The sealing stops water infiltration into the road base, hence avoiding potholes. This process is carried out during the springtime and belated autumn months.

Current method utilized for the break sealing process is Really Filling. This technique fills the void for the crack up towards the road area; little if any material is positioned regarding real road area. The absolute minimum 1 inch depth, and 1/2 inch width is need to utilize the Well Fill strategy. This is certainly a cost effective way of expanding road life two to three many years. This method is done by a contractor for the City of Pittsburgh. $.12 per square yard

Cold Patch:

Cold-patch (Poly Pave is the industry title) is made with a Latex Modified Base Asphalt. It is an urgent situation cold applied asphalt which is used primarily in the winter time whenever creation of hot-mix asphalt is certainly not feasible. It is useful for pothole patching only; it may not be employed for paving a whole road. Cold-patch is a pliable product that has adequate thickness to keep in the pothole when used. In the summer, whenever confronted with heat, it forms a solid, permanent plot. Presently, the town of Pittsburgh Asphalt Plant creates over 900 a lot of cold patch material a-year. This material is used by the division of Public Functions while the liquid Department. $7.00 per square garden.