Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83; site umcp-cs.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!umcp-cs!mangoe From: mangoe@umcp-cs.UUCP (Charley Wingate) Newsgroups: net.railroad Subject: Re: Ties Message-ID: <1627@umcp-cs.UUCP> Date: Thu, 19-Sep-85 08:07:21 EDT Article-I.D.: umcp-cs.1627 Posted: Thu Sep 19 08:07:21 1985 Date-Received: Sat, 21-Sep-85 10:44:38 EDT References: <1591@brl-tgr.ARPA> Organization: U of Maryland, Computer Science Dept., College Park, MD Lines: 16 In article <1591@brl-tgr.ARPA> Nicholas.Spies@H.CS.CMU.EDU writes: > The interesting messages about rail technology prompts me to > ask whether any of you know what has happened to the idea of > using pre-stressed concrete for RR ties. Also, what is the > service life of rails, ties, and the track bed? As the three > are a integral unit it would be interesting to know what the > ideal qualities of each would be, which may suggest new ways > to build tracks requiring less maintenance, give longer > service life, etc. The AMTRAK line from DC to NY is all laid with concrete ties. It's the most massive-looking right-of-way I've ever seen. Charley Wingate Brought to you by Super Global Mega Corp .com