cr1973
Civil/Environmental
- Jul 30, 2003
- 100
I'm looking at options for fasteners used for mechanical joint connections in water main construction projects. The typical "cor-blue" bolts are hardly corrosion resistant, aside from the manufacturer's claims. We are looking at 304 or 316 stainless steel, but I'm wondering if there are any better options? The nuts and bolts are buried with the fittings in either sand or crushed stone, with the surrounding earth in some areas being moderately or severely corrosive in some cases. Perhaps an additional requirement to spray mastic before burying?