In 1961, the Halliburton Company introduced a pneumatic railcar designed
to carry cement, pozolin (an additive) and fly ash in bulk. The basic car
was built by Pullman-Standard with the tanks, tank supports, piping, running
boards and ladders being fabricated and installed by Halliburton at the
Duncan, Oklahoma shops. The cars are numbered HWCX-50 through HWCX-124.
The Alaska Railroad uses these railcars to transport bulk cement to
oil fields where it is used to back fill wells or to provide a pressure-tight
seal between the oil pipe and rock wall of the hole.
Thanks to Jeff Childs for providing this information!
© 1998-2001 John Combs unless otherwise noted
Page created 9/20/98 and last updated 10/11/01