CORROSION MITIGATION IN BALCONY REPAIRS What is ...

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CORROSION INHIBITOR Properties of an Effective Corrosion Inhibitor • Works on both chloride and carbonation induced corrosion – in concrete. • Effective in high humidity environments • Must change electrical properties of steel/concrete • Long service life • Effective on concrete with micro-cracks • Proven Laboratory and Field Results 04.11.2004 36
SURFACE APPLIED CORROSION INHIBITOR Existing Corrosion in Concrete 600 500 Current, µA 400 300 200 100 Untreated CORROSION INHIBITOR 0 0 1 5 10 15 20 25 30 35 40 45 48 Weeks of Salt Water Exposure Corrosion on Cracked Specimens Corrosion on Cracked Specimens for Different Systems Using FHWA- RD-98-153 Protocol • Black Bars -- 4053 mV • Epoxy, 0.5% damage -- 971 mV • Epoxy, 0.004% damage -- 325 mV • Copper-clad -- 111 mV • 316 SS -- 5 mV • SURFACE APPLIED CORROSION INHIBITOR -- 58 mV
Page 1 and 2: CORROSION MITIGATION IN BALCONY REP
Page 3 and 4: DISSIMILAR METALS BASIC TERMINOLGY
Page 5 and 6: BASIC TERMINOLOGY • ANODE: Electr
Page 7 and 8: CORROSION: What Do You Need? • St
Page 9 and 10: CORROSION CONTROL OPTIONS Restorati
Page 11 and 12: 04.11.2004 21 GALVANIC PROTECTION Z
Page 13 and 14: PERIMETER REPAIRS REPAIR MORTARS wi
Page 15 and 16: GALVANIC PROTECTION Anodes Need Con
Page 17: Corrosion Inhibitors • Inorganic
Page 21 and 22: BUT WAIT….. • WHAT ABOUT CRACKS
Page 23: THANK YOU! THANK YOU. BASF Construc

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