![]() Block cracking is not load-associated, but generally caused by shrinkage of the asphalt pavement due to an inability of asphalt binder to expand and contract with temperature cycles. It often starts in the wheel path as longitudinal cracking and ends up as alligator cracking after severe distress.įIX: Because a structural failure is taking place the only possible solution to alligatoring is to perform a full-depth patch.īlock cracks look like large interconnected rectangles (roughly). The failure can be due to weakness in the surface, base or sub grade a surface or base that is too thin poor drainage or the combination of all three. Below we have identified and pictured 13 specific distresses/failures any pavement contractor should be able to identify.Īlligator cracking is a load associated structural failure. After all, correctly identifying pavement problems and their causes is at the heart of our business. ![]() With all the snow and ice over the last week on the east coast I thought it would be an appropriate time to look at some of the identifiable ways asphalt is adversely affected by weather – and other conditions.
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