Table 1 Crack sealing criteria specified in Agencies’ guideline based on crack width

Illinois DOT

Cracks opening less than or equal to 12.7 mm were repaired by injecting epoxy into the cracks. Hairline cracks do not need sealing, but they should be noted in the repair plans. Cracks openings larger than 12.7 mm should be sealed by removing all loose material along the edges of the crack and then using an expansive cement grout to fill the crack

[22]

Indiana DOT

Cracks of 0.30 mm in width and wider should be sealed

[23]

Michigan DOT

Deck cracks to be sealed must be a minimum of 0.2 mm wide

[24]

Minnesota DOT

Seal cracks 0.25 mm and larger.

[25]

Missouri DOT

Deck with cracks larger than 0.2 mm should be sealed with crack sealers

[26]