wet sand as backfill?
wet sand as backfill?
(OP)
I saw a project today where the contractor was backfilling his 6-8' steam line trench with wet sand out of the back of a concrete truck! I walked over it after it was filled- not compacted. The sand was well graded, saturated, and less than 2000pcf (yielded to foot pressure). My question is, with that much of a profile, won't this trench settle over time? Even with the 'jetting' effect? All areas are for existing city streets.





RE: wet sand as backfill?
RE: wet sand as backfill?
RE: wet sand as backfill?
RE: wet sand as backfill?
RE: wet sand as backfill?
RE: wet sand as backfill?
RE: wet sand as backfill?
Jetting only works if the material is clean AND if the water has an exist. It has to be able to flow out of the trench.
I don't like jetting, never have and never will. It is just an excus to leave a problem for someone else to deal with after a year or two.
RE: wet sand as backfill?