Utilizing the "Computed Volume" (NOT "Pay Volume") on the Truck Measurement Form(s) and the adjusted net weights, calculate the appropriate factor to the fourth decimal place, then round to three places:
To convert pounds or tons to cubic yards: FxT = Total Computed Volume (Cu. Yds.) Total Adjusted Weight (Tons)
To convert cubic yards to tons: FxCY =Total Adjusted Weight (Tons) Total Computed Volume (Cu. Yds.)
To convert kilograms or metric tons to cubic meters:
Total Computed Volume (m3)
Total Adjusted Weight (Metric Tons)
(d) To convert cubic meters to metric tons:
FxCM =Total Adjusted Weight (Metric Tons) Total Computed Volume (m3)
Conversion factors should be prepared for each separate source of the aggregate and, when Method of Measurement is by metric tons (tons), frequent (at least one per day when hauling is in progress) moisture content samples should be obtained.
If the Method of Measurement is by the Cubic Meter (Cubic Yard) and the Basis for Payment is by the Metric Ton (Ton), the Daily Report (Volumetric) is prepared as normal (using pay volumes for each measured truck) and the conversion factor (FxCM or FxCY) applied at the end of the report, rounding to the nearest whole metric ton (ton).
If the Method of Measurement is by the Metric Ton (Ton) and the Basis for Payment is by the Cubic Meter (Cubic Yard), the Daily Report is prepared normally and the conversion factor (FxMT or FxT) is applied to the "Corrected Total Tons" entry, rounding the answer to the nearest one-half (0.5) Cubic Meter ( 0.5 Cubic Yard):
.01 - .24 Round down to whole m3 or C. Y. .25 - .49 Round up to half m3 or C. Y. .51 - .74 Round down to half m3 or C. Y. .76 - .99 Round up to whole m3 or C.Y.
Note that the moisture content correction must be applied before the conversion factor is applied. A form for documenting the conversion factors is shown in Figure 109- 10 and is available in the MISC subdirectory or the Construction Drive of the LAN as file CONV-FAC.doc or CONVFACM.doc (metric version). Examples are shown in Figure 109-11.