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Field compaction of bentonite-based backfilling
Abstract This report describes the application and field compaction of a tunnel backfill, which consists of a mixture of commercial Na bentonite (MX 80) powder and suitably graded ballast material. The ballast material consists of quartz-rich sand and feldspar rich filler. Important characteristics for the tunnel backfill are low permeability, low compressibility and a certain swelling potential.
Field compaction of bentonite-based backfilling
Abstract This report describes the application and field compaction of a tunnel backfill, which consists of a mixture of commercial Na bentonite (MX 80) powder and suitably graded ballast material. The ballast material consists of quartz-rich sand and feldspar rich filler. Important characteristics for the tunnel backfill are low permeability, low compressibility and a certain swelling potential.
Field compaction of bentonite-based backfilling
Nilsson, Jan (author)
Engineering Geology ; 21 ; 367-376
1984-11-19
10 pages
Article (Journal)
Electronic Resource
English
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