The day-to-day shift calculation is performed for which measurements?

• A. Density counts only
• B. Moisture counts only
• C. Density and moisture counts separately
• D. Neither

Answer: (C)

Day-to-day shifts adjust the project quantities to reflect what actually happened in the field, and both density and moisture play crucial roles in that adjustment. Density counts tell you how much mass is in a given volume of soil, which is essential for converting observed volumes into weight-based quantities used for payment. Moisture counts indicate how much water is in the soil, and moisture content affects how dense the soil is and how much volume it occupies when compacted. Because these two factors come from separate tests and influence measurements in different ways, you need to account for them separately in the daily shift. Tracking only one would lead to inaccuracies in the adjusted quantity and payment. So, both density and moisture counts are used, counted separately, to make the daily shift accurate.