1.If a sample of wood measuring 1.45” x 3.45” x 6” long has a green weight of 8.55 lb. Determine the specific gravity of this wood.
2,.A structure is designed with a factor of safety of 5.25 psi. If the allowable stress of the structure is 3000 psi. What stress on the structure will lead to its failure?
3.A sample of aggregates weighs 400 grams. After drying at 112oF, its weight was 398.5 grams and absorption is 10%. Determine the moisture content and the free moisture.
4.Find the volume of voids in a 3 cu/yds course aggregates of bulk density 102 pounds per cubic ft and specific gravity 2.65.
5.Give at least five properties of asphalt that make it acceptable for pavement design and construction.