Posted by **Jazmin** on Saturday, February 5, 2011 at 11:04pm.

100 lb of loose gravel can fill a 1-ft^3 box. Its specific gravity is 2.68. What is the dry rodded weight?

- engineering -
**MathMate**, Sunday, February 6, 2011 at 10:13am
"The dry rodded unit weight of aggregate is determined by compacting dry aggregate into a container of a known specific volume according to standard procedures."

It is not known if the gravel was compacted as per standards into the 1 ft³ container. If it was, the dry rodded unit weight is 100 lb/ft³. If it was not, the dry rodded weight is likely to be slightly higher, but in any case, not exceeding 62.4*2.68=167 lb/ft³.

The specific gravity refers to the specific gravity of the material, i.e. a solid chunk of the material, without voids.

- engineering -
**Jazmin**, Sunday, February 6, 2011 at 4:44pm
Thanks so much, I was confused and then I used specific gravity formula and i got 167 lb.

- engineering :) -
**MathMate**, Sunday, February 6, 2011 at 4:59pm
You're very welcome!

## Answer This Question

## Related Questions

- ENGINEERING - 100 lb of loose gravel can fill a 1-ft^3 box. Its specific gravity...
- testing of materials - Could you please show me how to solve this problem ! The ...
- mathematisc lit - if a persons has a height of 161cm and a weight of 82kg. then ...
- Fluid Mechanics - A cone with base radius of 5 cm and height of 20 cm is filled ...
- PHYSICS please HELP - A box is lifted with a pry bar, by slipping the bar under ...
- physics - Truck brakes can fail if they get too hot. In some mountainous areas, ...
- CHEMISTRY - *Specific Gravity A cylinder of plastic is 100 mm long and 50 mm in ...
- maths - the weight of 4 boxes together is 66.5kg.the weight of box B is 2kg less...
- Engineering Physics - A 4kg box is compress 50 cm on a spring (k=100 N/m) and ...
- math - The weight of box A is 4/5 of box B. If box B is placed on one side of a ...

More Related Questions