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

"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. 
Thanks so much, I was confused and then I used specific gravity formula and i got 167 lb.

You're very welcome!
Respond to this Question
Similar Questions

physics
Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are constructed to stop runaway trucks that have lost their brakes. The combination of a slight upward slope and a large coefficient of friction … 
testing of materials
Could you please show me how to solve this problem ! The unit weight of a soil is 122 lb/ft^3 at a water content of 12.6%. The specific gravity of the soil is 2.72. Find dry unit weight,porosity,and degree of saturation. 
PHYSICS please HELP
A box is lifted with a pry bar, by slipping the bar under the box and lifting up on the bar. If the pry bar is 2m in length and it is grasped at the end, and the box is located at the opposite end, the fulcrum, with its center of gravity … 
mathematisc lit
if a persons has a height of 161cm and a weight of 82kg. then decides to loose weight after 8monts he now weighs 73kg. how wmuch more weight must he loose to in order to weigh 24kg 
ENGINEERING
100 lb of loose gravel can fill a 1ft^3 box. Its specific gravity is 2.68. What is the dry rodded weight? 
Engineering Physics
A 4kg box is compress 50 cm on a spring (k=100 N/m) and then slides across a horizontal floor. If (u=0.4) between the box and the floor 1) How much work is done by friction as the box comes to a stop? 
CHEMISTRY
*Specific Gravity A cylinder of plastic is 100 mm long and 50 mm in diameter. It has a mass of 1 kg. Determine its specific gravity and indicate whether it would float or sink in water . PLLEEEEEEEEEEEASE 
maths
the weight of 4 boxes together is 66.5kg.the weight of box B is 2kg less than box A.and the weight of box C is 1.5kg more than box A.if the weight of box D is 1.5kg more than box C.find the weight of each box 
Fluid Mechanics
A cone with base radius of 5 cm and height of 20 cm is filled with oil with specific gravity of 0.85. Determine the dimension of cubic steel which its weight is equivalent to the oil weight. Steel Specific Gravity is 7.1 
math
The weight of box A is 4/5 of box B. If box B is placed on one side of a balance scale, it is balanced by box A and a 4/5 pound weight. How much does box B weigh?