Gravity-feeding epoxy is an effective method for filling the tops of cracks. However, the depth of penetration can be variable. Limit its use to shallow cracks or locations where deeper cracks are acceptable, but protection from water and chloride infiltration is necessary.

Gravity-feeding sealant is an effective method for filling the tops of cracks. However, the depth of penetration can be variable and often times it will not penetrate the cracks more than ¼”. The primary use of gravity-fed sealants is to address

relatively shallow

bridge deck cracking, which when used correctly, will provide a barrier keeping water and chloride from reaching the reinforcing steel.