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A platform for research: civil engineering, architecture and urbanism
Requirements for washed gravel ballast
Specification covering grading, cleanness and methods of testing; specification was offered after thorough consideration of functions of ballast and methods of producing prepared gravel.
Requirements for washed gravel ballast
Specification covering grading, cleanness and methods of testing; specification was offered after thorough consideration of functions of ballast and methods of producing prepared gravel.
Requirements for washed gravel ballast
Nat. Sand Gravel Bul
1928
Article (Journal)
English
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Economical production of washed sand and gravel
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