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  1. ryanmarquette

    Moisture content in soils

    Thanks all for the help, very useful information. dgillette, North Dakota does use the modified proctor with their soils. We ended up disregarding moisture if they were above density of 90 percent. Sometimes you just have to pick your battles with stubborn contractors, I suppose. The last few...
  2. ryanmarquette

    Moisture content in soils

    Thanks Ron! I figured that moisture content shouldnt matter after compaction is achieved anyways. I'm thinking that the spec wasn't researched properly when it was written, because you are right, when you get to the +5% range, the material is very hard to work with. Most of the soil up here is...
  3. ryanmarquette

    Moisture content in soils

    In North Dakota the spec for earthwork requires that all soil be at or 5 percent over optimum moisture as determined by the 5 pt proctor. Also must meet 90 percent of the maximum dry density. Is this a bogus spec? The contractor is able to meet density even when the material is 1-2 percent under...

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