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=Voids and Density= | =Voids and Density= | ||
*'''Cleaned rock should in principle be lighter than unwashed, as there are clean gaps in clean rock. These gaps can clearly be filled, say 60%, by smaller particles. Thus uncleaned gravel should weigh 60% of 40% more, or 25% more. Clean rock thus should be 25% more valueable for the weight - it will take more volume.''' | |||
*40% voids typi | *40% voids typi | ||
*ASTM 57 is 2400 lb/yard | *ASTM 57 is 2400 lb/yard | ||
*2" minus is 3200 lb/cu meter [https://www.aqua-calc.com/page/density-table/substance/gravel-coma-and-blank-dry-blank-1-forward-slash-4-blank-to-blank-2-blank-inch] | *2" minus is 3200 lb/cu meter [https://www.aqua-calc.com/page/density-table/substance/gravel-coma-and-blank-dry-blank-1-forward-slash-4-blank-to-blank-2-blank-inch] | ||
*100 pcf for 3" and 125 pcf for 3" minus [https://www.eng-tips.com/viewthread.cfm?qid=220397] | *100 pcf for 3" and 125 pcf for 3" minus [https://www.eng-tips.com/viewthread.cfm?qid=220397] | ||
*3/4" unwashed is 1.3 tons per yard [https://asphaltmaterials.net/products/3-4-minus-construction-gravel] | |||
=2021 Prices= | =2021 Prices= | ||
Latest revision as of 16:08, 31 October 2023
Voids and Density
- Cleaned rock should in principle be lighter than unwashed, as there are clean gaps in clean rock. These gaps can clearly be filled, say 60%, by smaller particles. Thus uncleaned gravel should weigh 60% of 40% more, or 25% more. Clean rock thus should be 25% more valueable for the weight - it will take more volume.
- 40% voids typi
- ASTM 57 is 2400 lb/yard
- 2" minus is 3200 lb/cu meter [1]
- 100 pcf for 3" and 125 pcf for 3" minus [2]
- 3/4" unwashed is 1.3 tons per yard [3]