Question #$3$:

Determine the field mix proportions using the following data:

Concrete is used for columns and beams

Concrete with air content $=3\%$

Specified compressive strength of concrete $=27\mathrm{.}58$MPa

Maximum size of coarse aggregate $=38\mathrm{.}1mm$

$,$ Specific gravity of coarse aggregate $=2\mathrm{.}68$

Moisture content of coarse aggregate $=1\mathrm{.}5\%$

Absorption capacity of coarse aggregate $=0\mathrm{.}8\%$

Dry rodded weight of coarse aggregate $=1650k\frac{g}{m^3}$

Specific gravity of fine aggregate $=2\mathrm{.}65$

Moisture content of fine aggregates $=7\%$

Absorption of fine aggregate $=4\%$

Fineness modulus $=2\mathrm{.}6$