Creep

The curved chalk line follows the vehicle tires
into this driveway. Not only do the pavers
creep in this example the bed sand is
pushing outward from the loads.

This picture illustrates Creep. While Creep can happen on patios and walks it is much more common on driveway applications where repetitive breaking or turning loads from vehicular traffic are present. Inappropriate paver shape, thickness, aspect ratio and laying pattern will lead to Creep. Improper choice or installation of an edge restraint system can also contribute to Creep.

All to often creep begins with poor choices. Interlocking Concrete Paver Institute (ICPI) suggests a 60 or 90 degree Herringbone pattern for driveway applications. Not all people like the "look" of this pattern and designers give way to that sentiment allowing homeowners other choices. While short term the homeowner has received what they wanted, long term it becomes a disaster. 

There are multiple edge restraint systems and the ultimate would be a poured in place concrete curb. Concrete curbs will not push outward from vehicular turning loads. Flush concrete beams can also be poured with in the body of an installation to help keep it in place preventing Creep.

Creep affects the structural integrity of an application leading to loss of interlock and joint/bed sand washout. While replacing a driveway using the correct paver and laying patterns may not be feasible, The Paver Doctor has proven methods of repair. Feel free to call regarding this or any other issues related to your pavers. We specialize in paver Repair-Restoration-Sealing.