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Technical Dayta Sheet Compedium

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING TIMBER FLOORING ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS ALPHABETICAL Chloride contamination causes corrosion in reinforced concrete INDEX 90 Page X 2 Chloride contaminated concrete Potential difference between upper steel in chloride contaminated concrete and lower steel results in accelerated corrosion Corrosion activity is reduced in rebar Anode galvanically protects surrounding rebar Galvashield CC mitigates active corrosion Design Criteria Standard Units Unit type Description Unit size diameter x length Minimum hole size diameter x length Galvashield CC65 Standard unit for moderate steel density 42 x 62 mm 50 x 95 mm Galvashield CC100 Larger unit for higher steel density 46 x 100 mm 50 x 130 mm Galvashield CC135 Slim-fit for congested reinforcement 29 x 135 mm 32 x 165 mm Galvashield CC65 & CC135 Steel density ratio (steel surface area/ concrete surface area) Maximum grid dimensions* < 0.2 700mm 0.21 - 0.4 600mm 0.41 - 0.54 500mm 0.55 - 0.67 450mm 0.68 - 0.80 400mm 0.81 - 0.94 380mm 0.95 - 1.07 355mm 1.08 - 1.2 335mm Galvashield CC100 Steel density ratio (steel surface area/ concrete surface area) Maximum grid dimensions* 0.55 - 0.94 500mm 0.95 - 1.17 450mm 1.18 - 1.41 400mm 1.42 - 1.64 380mm 1.65 - 1.88 355mm 1.89 - 2.11 335mm A A X Rebar Connection Galvashield CC units A Grid Dimension Interconnecting Cable X Installation Instructions The location and spacing of the Galvashield CC units shall be on a grid pattern as specified by the engineer. Using a rebar locator, locate all existing steel within the area designated for protection and mark areas to drill unit installation holes. When possible, units should be installed a minimum of 100 mm from reinforcing grid. Series Connection A single circuit shall contain no more than 10 Galvashield CC units. Drill a minimum of 12 mm rebar connection holes per string of anodes. Saw cut a single continuous groove approximately 6 mm wide by 12 mm deep into the concrete to interconnect rebar connection holes and anode connection holes. Galvashield® CC


Technical Dayta Sheet Compedium
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