Crack & Seat

The purpose of crack & seat of concrete pavement prior to overlaying it is to minimize the occurrence and severity of reflection cracks in the overlay caused by slab action by cracking the concrete slabs to reduce their effective length and then seating the cracked slabs to reestablish support between the subbase and the slabs. Some specifications require that the road be opened to traffic after cracking to accomplish the seating prior to paving the overlay. Other specifications require a proof roller be used to seat the cracked concrete. Most cracking has been performed with the T8600 Badger Breaker® although the MHB Badger Breaker® is also used for cracking.

Reports Crack & Seat

February 11, 2015

Breaking / Cracking and Seating Concrete Pavements

National Cooperative Highway Research Program Synthesis of Highway Practice 144 by Marshall R. Thompson.

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Antigo Construction Family of Companies Completed Square Yards by Type

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California Interstate Crack & Seat Concrete Pavement with Asphalt Overlay Projects

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Crack & Seat Concrete Pavement with Asphalt Overlay Projects - Iowa 2-Lane Highways

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Crack & Seat Concrete Pavement with Asphalt Overlay Projects - Southeast Wisconsin Local Roads

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Cracking & Seating Concrete Pavement at Airports, 1984 to 2016

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