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Nuclear Densometer in Trenches

Nuclear Densometer in Trenches

Nuclear Densometer in Trenches

(OP)
Hi,

I am reviewing some nuclear density testing that was carried out in trenches. I am pretty sure no trench calibration was carried out before this testing was done. Does anyone know of a paper that discusses the ammout of error that can be introduced into Nuclear Density readings when the trench calibration is not included? Or, does anyone know from experience.

Thanks

RE: Nuclear Densometer in Trenches

It depends on the material in which you are testing.  The error can be small or large.  More error is introduced in clayey materials and calcareous materials.

Troxler Instruments has some info on this.

RE: Nuclear Densometer in Trenches

Trench width will also make a difference.  The narrower the trench the more the error.

RE: Nuclear Densometer in Trenches

I know moisture content are no where right on a gauge, seeing sometime 35% moisture when the actual moisture running 8%

RE: Nuclear Densometer in Trenches

The deaper you test using surface calibration, the bigger error on the readings(e.g. density going down with depth).
You have to calibrate every time your trench width and depth changes.

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