Hello,
Thinking of changing my plans a bit. I understand that you want to avoid soil contact with sleepers because soil will hold moisture (hence using some sort of barrier / membrane), however, if the backfill is instead Mot Type 1 Subbase is a protective membrane necessary?
Thanks!
Thinking of changing my plans a bit. I understand that you want to avoid soil contact with sleepers because soil will hold moisture (hence using some sort of barrier / membrane), however, if the backfill is instead Mot Type 1 Subbase is a protective membrane necessary?
Thanks!
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