Rehabilitation of degraded concrete due to biogenic sulfide corrosion (H2S): is there a long-term fix?
asked 29 September 2016 asked by jbo ( points)
Wash or scrub and coat with a protective resin
This is the right thing to do, but pay close attention to the conditions under which the resin is applied.
Hello, Repair and restoration of concrete attacked by H2S requires careful work: Surface prep for all concrete surfaces Treatment of any affected steel components Resurfacing of concrete Installation of fiberglass Application of epoxy or poyester resin Drying
Hello, First off, you can't avoid by-passing. Second, performing diagnostics is crucial: sample via drilling then assess (there are companies that specialize in this) You need to determine the thickness of the concrete that has to be resurfaced. Then you can perform a pressure wash or abrasive blasting, treat the steel, resurface with special mortars, install fiberglass and epoxy then, lastly, apply weatherproofing.
Hello, You say I can't avoid bypassing. But Kerneos has a 100% calcium aluminate mortar that is relatively simple to apply. Can be done in stages of just a few hours, thereby avoiding a bypass and allowing for considerable cost savings. www.sewpercoat.com