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]

For roads - Les Meek - 816.724.0489
Road Base - $14.50
New workshop - 1-1/4" road base - 71 tons [4] - $1375. That makes for $19.65/ton delivered. Base price of rock is $14.50
For 17 tons, Larry McFee was $303 ($17.82/ton) for SEH 2

@@ Line 1: / Line 1: @@
-*For roads - Les - 816.724.0489
+=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 [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]
+*3/4" unwashed is 1.3 tons per yard [https://asphaltmaterials.net/products/3-4-minus-construction-gravel]
+=2021 Prices=
+*For roads - Les Meek - 816.724.0489
 *Road Base - $14.50
 *New workshop - 1-1/4" road base - 71 tons [https://photos.google.com/search/receipts/photo/AF1QipMpjzXTC2rLy9pbNnmG2T8wUCSuKelPQcPbyOXy] - $1375. That makes for $19.65/ton delivered. Base price of rock is $14.50
+*For 17 tons, Larry McFee was $303 ($17.82/ton) for [[SEH 2]]