Resisted Relative Movement Breaks Concrete and Concrete Repairs©
Spalled longitudinal runway crack repaired 4 years before invention of Resurf® Joint Forming and Sealing System*-Type 4. Complete Separation (down to the first course of reinforcement) of the "two slabs" must be achieved using Type 4 and black silicone caulk. Meandering cracks and all joints must be converted into effective expansion/contraction joints.
* Patent No.10,577,760 B2