Thanks to Chris / CopCarSS for my avatar.
QUOTE: Originally posted by Murphy Siding The funniest part is the mayor trying to make it sound like the flaking paint will cause chemical cars to derail.[(-D]
She who has no signature! cinscocom-tmw
Being Crazy,keeps you from going "INSANE" !! "The light at the end of the tunnel,has been turned off due to budget cuts" NOT AFRAID A Vet., and PROUD OF IT!!
QUOTE: Originally posted by TheAntiGates If I play my stereo too loud all night, does that mean you should pay for soundproofing to my house? just for your comfort? Or should the owner of the offending property take responsibility for being a good neighbor?
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
QUOTE: Originally posted by Murphy Siding [ Good point. After reading the article, would you think the mayor would be squawking as loud, if the railroad in question had a balance sheet like latter day Rock Island, Milwaukee Road, or Penn Central?
QUOTE: I wonder if there is a federal precidence concerning states and localities regulating appearance of railroad properties? Csx says they safety check the bridges. For the most part, it appears this is a appearance issue.
QUOTE: Originally posted by TheAntiGates Allowing the steel reinforcement in concrete superstructures to remain exposed to the elements is a recipe for eventual failure. Rain follows the re-bar into the heart of the cement, freezes and cracks the cement, cracks get bigger, allow more water in, repeat the process for a couple decades, and eventually you have serious problems. Of course, the railroad can always make an appeal that the tax payers should eventually pay to replace the bridges that rusted away, afterall, how can a poor little old railroad be expected to afford a bridge, they just run trains and inspect for operational safety.
QUOTE: Originally posted by rrandb The facts are from the FL DOT. Where are yours from. [?]
QUOTE: Originally posted by TheAntiGates QUOTE: Originally posted by rrandb The facts are from the FL DOT. Where are yours from. [?] As far as the cement/exposed rebar, direct hands on experience with multiple steel reinforced concrete parking structures that had been "cancered out" through years of neglect Once the rebar is exposed, the water wicks down between the bar and the concrete around it, the invasiveness is self sustaining and accellerates expotentially. Really fun when you walk around a 8 story garage knocking the deck and getting hollow sounds because of the delamination of the cement at the first layer of bar., and it only gets worse, the deeper the water works it's way into it. Re bar actually "expands" as it corrodes, adding a pushing effect seperating the cement from it And for the steel, not all steel is meant to be corroded, and much of what was designed tro be that way didn't workout as hoped for (Cor-ten I think was one, that will 'rot' out anyway if kept continuously wet) A good site for corrosion basics is http://www.corrosion-doctors.org/InternetResources/NPL.htm#Stress
QUOTE: Originally posted by solzrules AntiGates - There is a big difference between a parking garage and a RR bridge. One is subjected to massive puddles of water laden with road salt and the other isn't. It isn't rust that causes the concrete to de-laminate, it is the salt. Salt weakens concrete over time, to say nothing about what it does to metal rebar. Modern parking garages, and in fact all road bridges, are constructed using PVC coated rebar (usually they are green in color). Even the tie wire used to tie up the rebars is PVC coated. This minimizes the affect of salt on the metal so the concrete will retain its strength longer, but over time a continual saturation with road salt will still cause the concrete to de-laminate. That is also why roads and parking structures last longer in the south then they do in the north - no harsh winters (and road salt) in Florida. As for the mayor - Only a city enamored in the bliss of utpoia could possibly worry about this. Flaking paint is going to cause a chemical dump? How is that not using scare tactics? I wonder what study he is quoting from, or what qualified city inspector decided that was the scenario to be afraid of. The Parks Department?
QUOTE: Originally posted by SSW9389 I always thought that the federal government regulated railroads. How can local building code enforcement apply to something like a railroad if it is federally regulated?
QUOTE: Originally posted by solzrules Only a city enamored in the bliss of utpoia could possibly worry about this. Flaking paint is going to cause a chemical dump? How is that not using scare tactics? I wonder what study he is quoting from, or what qualified city inspector decided that was the scenario to be afraid of. The Parks Department?
QUOTE: Originally posted by Poppa_Zit This scam by Covington's mayor, if adopted by Chicago's City Council and applied to the hundreds of similar-looking bridges in the Windy City, could fill city coffers enough to where every alderman's children, nieces and nephews could get hired for no-show jobs. [:D] The Chicago City Council has, in its infinite wisdom, already boldly enacted bans on foie gras, cell phone use by taxi drivers, street musicians and is now wording legislation to regulate the oil used to make french fries!
QUOTE: Originally posted by TheAntiGates QUOTE: Originally posted by solzrules AntiGates - There is a big difference between a parking garage and a RR bridge. One is subjected to massive puddles of water laden with road salt and the other isn't. It isn't rust that causes the concrete to de-laminate, it is the salt. Salt weakens concrete over time, to say nothing about what it does to metal rebar. Modern parking garages, and in fact all road bridges, are constructed using PVC coated rebar (usually they are green in color). Even the tie wire used to tie up the rebars is PVC coated. This minimizes the affect of salt on the metal so the concrete will retain its strength longer, but over time a continual saturation with road salt will still cause the concrete to de-laminate. That is also why roads and parking structures last longer in the south then they do in the north - no harsh winters (and road salt) in Florida. As for the mayor - Only a city enamored in the bliss of utpoia could possibly worry about this. Flaking paint is going to cause a chemical dump? How is that not using scare tactics? I wonder what study he is quoting from, or what qualified city inspector decided that was the scenario to be afraid of. The Parks Department? Yes, salt certainly will compound the problem. no question about that. However, an absence of salt does not eliminate the problem entirely either. And yes, the MUCH MILDER WINTERS IN THE SOUTH bring far fewer freeze thaw cycles per winter than in the great white north. Prolly why they don''t have to use road salt down in dixie? (bet there is a connection in there smewheres) Thanks for treating me like a complete moron talking out my hat, (again) i love it when folks try to imply that. And you know what? Were it not for the fact that professional engineers whose knowledge I had a great deal of respect for had not already "brainwashed" me to the contrary, I might capitulate. Sorry though, maybe another day.
QUOTE: Originally posted by TheAntiGates QUOTE: Originally posted by solzrules AntiGates - There is a big difference between a parking garage and a RR bridge. One is subjected to massive puddles of water laden with road salt and the other isn't. It isn't rust that causes the concrete to de-laminate, it is the salt. Salt weakens concrete over time, to say nothing about what it does to metal rebar. Modern parking garages, and in fact all road bridges, are constructed using PVC coated rebar (usually they are green in color). Even the tie wire used to tie up the rebars is PVC coated. This minimizes the affect of salt on the metal so the concrete will retain its strength longer, but over time a continual saturation with road salt will still cause the concrete to de-laminate. That is also why roads and parking structures last longer in the south then they do in the north - no harsh winters (and road salt) in Florida. As for the mayor - Only a city enamored in the bliss of utpoia could possibly worry about this. Flaking paint is going to cause a chemical dump? How is that not using scare tactics? I wonder what study he is quoting from, or what qualified city inspector decided that was the scenario to be afraid of. The Parks Department? Yes, salt certainly will compound the problem. no question about that. However, an absence of salt does not eliminate the problem entirely either. And yes, the MUCH MILDER WINTERS IN THE SOUTH bring far fewer freeze thaw cycles per winter than in the great white north. Prolly why they don''t have to use road salt down in dixie? (bet there is a connection in there smewheres) Thanks for treating me like a complete moron talking out my hat, (again) i love it when folks try to imply that. And you know what? Were it not for the fact that professional engineers whose knowledge I had a great deal of respect for had not already "brainwashed" me to the contrary, I might capitulate. Sorry though, maybe another day. Which one of CSX's hundred year old bridges are you claiming was built with PVC coated rebar in the foundation?
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