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Electrical Engineering/Track Ballast - Alternative Materials.

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Question
Dear Prof Cleggsan

http://en.wikipedia.org/wiki/Track_ballast

Which could be the alternative materials which can be used / tried out instead of Ballast or crushing stones ?. viz Cement, plaster of Paris, sand, metal, non metals etc for railway tracks ?.

Awaiting your reply,

Thanks & Regards,
Prashant S Akerkar

Answer
This is an electrical engineering column; railroad tie ballast material is far out this field!  Maybe some other allexpert dealing with materials can help you more effectively and wisely.

The only material that I have experience with - that was not included in the wikipedia discussion is magma (http://en.wikipedia.org/wiki/Magma) which is very abundant throughout the world and is very low cost.  It can be scooped off the ground in many places throughout the earth's surface.

Magma is also known as perlite and is used in agra businesses and other insulation trades.  You can usually find it anywhere.

http://www.perlite.info/indexes/main.html  

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cleggsan

Expertise

All technical areas of Electronics Engineering.

Experience

BSEE, MBA, Design, R&D, University Research.
Senior Life Member of IEEE. Life Fellow of AES.

Organizations
IEEE, Consumer Electronics Society, Audio Engineering Society.
Broad teaching experience; work experience mostly in consumer electronics and conversion from analog to digital technologies. Pioneer in digital audio at all levels.

Education/Credentials
BSEE (Equiv) BYU BSEE University of North Dakota MSBA (MBA) Illinois State University Graduate Studies in Computer Science - Bradley University Graduate Studies - Ohio University Graduate Studies - University of Missouri Kansas City DeVry Tech - Electronics

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