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Crack Maintenance Doesn't Cost, it Pays! -
Ever wonder why you are patching or paving every spring? When water enters through any crack large or small, whether it be asphalt or concrete, it effects the subbase allowing the earth to become soft (mud) which with heavy weight from above, causes the mud to pump upward contaminating the rock and weakening it to the point of no support for the traffic above. In addition, water in the winter freezes and causes heaving through, causing those potholes everyone hates.
Our product is widely used by municipalities, large malls and plazas on an annual basis to hold repairs to minimum. It has quick-set properties and offers expansion.
If done on an annual basis, you will notice your maintenance bills becoming less and less.
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Reflective
This type of crack appears primarily in resurfacing projects, although it can also occur in a new pavement. It happens when an existing crack or joint in the underlying pavement structure reflects upward through the surface.
Block
Visually, this type of cracking forms a square pattern, with cracks intersecting each other at nearly right angles. A common cause of this on parking lots is lack of traffic, (steady traffic constantly kneads the pavement and keeps it flexible). Other causes include excessive air voids, low-penetration asphalt, or an overly high plant mix temperature.
Edge
Unlike the previous types, edge cracks appear only parallel to and within 18 inches of the edge of the pavement. Causes include poor base, lack of shoulder support, poor drainage, or frost action.
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Joint |
Slippage |
Fatigue, Alligator or Spider Cracking |
Joint
Pavement "joints" are created during initial construction when the edges of two pavement mats are placed next to one another. These constructed joints usually have a lower density of asphalt than that of the surrounding pavement. If the mats don't bond properly (for a variety of reasons), joint cracks appear.
Slippage
Slippage cracks are usually crescent-shaped and caused by heavy traffic that is stopping, turning, or climbing a hill. Resultant stresses cause a bond failure between the upper and lower pavement layers. The open end of the U-shaped crack always points in the direction of the applied force.
Fatigue, Alligator or called Spider Cracking
Over time, a flexible asphalt pavement becomes more rigid and is less able to tolerate vertical deflections. This causes tension in the pavement and results in alligator-type cracking. Such cracking can also occur from structural inadequacy, aging, and oxidation.
It is recommended that alligator or spidering areas be removed and replaced rather than filled or sealed .
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