Go Hydro Go Deep...

is the idea that long lasting concrete repair is only achieved through complete removal of chloride contaminated concrete from around reinforcing bar (rebar). In the Northeast and Midwest, winter time roadway safety operations expose bridge decks to tons of salt. This combined with freeze/thaw cycles drives chloride deep into the concrete surface. One way to remove chloride concrete from below the rebar is to use hydrodemolition. This technological approach uses ultra high pressure water to rapidly erode the cement paste from on top of, around and below the rebar. The results are clean rebar, removal of chloride contaminated concrete and longer lasting repairs.

According to ICRI's "Guideline for Surface Preparation for the Repair of Deteriorated Concrete Resulting from Reinforcing Steel Corrosion", "the practice of completely removing concrete from around the the corroded reinforcement, no matter what degree of corrosion is found, is key to achieving long-term performance of surface repairs." ICRI Guideline No. 310.1R-2008 recommends removing a minimum of 0.75 inches below the rebar or 0.25 larger than the coarse aggregate in the repair material.

Providing a uniform chemical environment by removing chloride contaminated concrete from the rebar and allowing the repair material to bond structurally with the repaired area are two great reasons why Rampart supports below the bar removal for all concrete repair projects. You can see some projects of below the bar removal on our website.