Laserfiche WebLink
In order to aide in determining the thickness of material placed pieces of geotextile <br /> (approximately 2'x2') were placed over the trash prior to ADC placement. However, the <br /> geotextile bunched up during the ADC spreading process, making them of no use for <br /> determining depth of cover. <br /> Upon completion of the spreading and compacting operation, 6 potholes were dug in <br /> different locations around the 50'x50' test plot area. Therefore each pothole represented <br /> approximately 417 square feet. The potholes were excavated to the point where the waste <br /> layer was easily differentiated. The depth of each pothole was then measured by laying the <br /> shovel on top of the ADC, and measuring down to the waste with a grade-checker's folding <br /> ruler. Obviously some judgment is involved in recording the depth of each pothole seeing <br /> that some disturbance of the area around the pothole occurs when the hole is excavated. <br /> Density calculations for the October 3, 2006, test day were as follows: <br /> Greenwaste: <br /> Average thickness: 1.05' <br /> Area of plot: 2,500' <br /> Volume of material: 2,625 cubic feet <br /> Weight of material: 87,680 pounds <br /> Density of material: 33.4 pounds/cubic foot or 902 pounds/cubic yard <br /> TASW: <br /> Average thickness: 1.55' <br /> Area of plot: 2,500' <br /> Volume of material: 3,875 cubic feet <br /> Weight of material: 149,580 pounds <br /> Density of material: 38.6 pounds/cubic foot or 1,042 pounds/cubic yard <br /> I did not collect a sample of the greenwaste for moisture content testing, but it did appear <br /> to be fairly dry as would seem sensible given the season. <br /> 2 <br /> J:\A11ied\Forward\2006.0154 ADC Test\ADC Test Report\App A Engr Pre-Test.doc <br />