Calculate the total quantity (cubic meter) of the coarse aggregate required for an isolated rectangular footing of size 3m x 2m, if 1: 2: 4 cement, concrete is used. The depth of the footing is 600mm.

A rectangular footing 2.1 m x 3.2 m x 0.37 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 363 kN LL = 291 kN f'c = 21 MPa  Fy = 415 MPa  Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab. Write your final answer with 2 decimal places if the unit is MPa.

Determine the maximum aggregate size (MAS) for an 18" wide foundation wall that has two layers of rebars. It is comprised of number 4 rebar at 6" on center in the horizontal direction and number 6 rebar spaced at 2" on center in the vertical direction. It has 1.5" clear cover on the side of the wall

Explain in details the property of compressive strength as it pertains to clay.