Re: Cleaning Ballast - Why do they need to do this?

[Patrick Dunford <patrick_dunford@hotmail.com>]

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Behold, on 6 Sep 1999 08:20:34 +1000 in
misc.transport.rail.australia-nz:<7quqbi$43k$1@lios.apana.org.au>, C. Dewick
(craigd@lios.apana.org.au) didst uttereth:

>In <7ptfmi$32l$1@mulga.cs.mu.OZ.AU> cmgord@ecr.mu.oz.au (Christopher_Martin
GORDON) writes:
>
>>The requirement for Ballast is to keep the track bed dry and the sleepers
dry.
>>For concrete sleepers this donsn't realy matter, but you still need to keep
the 
>>track bed dry and free of water.  Ballast is a good way of doind this, but
if
>>the ballast is dirty then the water will not drain away.

Dirty ballast would also be more likely to grow weeds though whether this has
any bearing I do not know.

snip
- -- 
Patrick Dunford, Christchurch, NZ
http://patrick.dunford.com/ 
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