Many slabs in these structures show various types of cracking which over time, may result in moisture intrusion and cause rebar and post-tension tendon corrosion. Proposed maintenance treatments of the slabs and long term reparations with concrete penetrating sealants., coatings or other defined measures would reduce chloride attach on the reinforcement and post-tension cables, and consequently, reduce life-cycle structural damage and high replacement costs (plan check 16bld-2674 is for parking structure 2,4,5,9,10).