Talk:Track ballast

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Added the US term ties to "translate" sleepers. Kether83 07:28, 25 December 2005 (UTC)[reply]

textile mat

under ballast prevents fine soil particles to creep up, or the ballast stones to dive in. --93.111.94.104 (talk) 19:33, 14 July 2010 (UTC)[reply]

Austrian producer of ballast service equipment with factory in Canada

see http://de.wikipedia.org/wiki/Plasser_%26_Theurer --93.111.94.104 (talk) 19:38, 14 July 2010 (UTC)[reply]

Pneumatic Ballast Injection (PB) and Stoneblowing

Could it be possible that

pneumatic ballast injection is the generic name

while stoneblowing is the trademark?

Remembering the sad case of the loss of trademark of Linoleum, trademarks are better protected if there is a parallel non-trademark term for a product. Tabletop (talk) 05:20, 21 May 2011 (UTC)[reply]

Period comments

The values for 60lb mainline rail are misleading due to the age of the material quoted. Nowdays rail is much heavier. Also the values should be properly presented including metric units. 81.2.110.250 (talk) 20:46, 18 August 2012 (UTC)[reply]

The comment about early engineers not understanding the importance of the material is also PoV and not backed up with a citation. Early railway systems were much lighter vehicles running at lower speed and ash was just fine (a practice continued in low speed yards until the 1960s at least.

Period Comments Seconded

Those values are REALLY old. I'm currently studying railroad ballast for my master's thesis, and can supply some modern numbers in about 6 months once it's published and citable.

In the meanwhile, I believe somewhere there's a University of Illinois report from the 1970s on Illi-Track (computer track modeling software) that lists some densities for various ballast types. These could be changed into per mile statistics using a standard AREMA cross-section for ballast.

Hay's Railroad Engineering lists a few densities, and Selig's Track Geotechnology and Substructure Management lists some as well.

Once that thesis is written, I may have a whack at this page.

Slopes09 (talk) 06:36, 6 February 2013 (UTC)[reply]