Win the Pavement Maintenance Battle with this Strategy
by Jeffrey Rasche, on Feb 12, 2021 10:54:57 AM
One common solution that's used to address fatigue and reflective cracking in pavements is applying an asphalt overlay directly on top of the existing pavement. Although this approach provides some additional service life, the benefit is often short-lived. For each inch of applied overlay, reflective cracks are assumed to be deterred from reaching the surface for a period of just one year, creating a situation for cracks to pre-maturely resurface. This also creates an expensive, losing battle with pavement maintenance that will never end.
However, pavement interlayers like the GlasGrid System have proven to be an extremely effective method for deterring cracks for an extensive amount of time. Installed between an asphalt leveling course and the surface course, the GlasGrid System becomes the hidden strength in a road, turning reflective vertical crack stresses horizontally to effectively dissipate them.
Take a look at this example below. On the left, the asphalt is rehabbed with only an overlay and has no defense against the cracks creeping up towards the surface over time. As significant reflective cracking begins to appear at the surface, the rate that water seeps into the pavement increases. On the right, the pavement is reinforced with the GlasGrid System which intercepts and redirects the cracks to prevent them from migrating further.