PROBLEM #$2(40$ Points$)$:

Class AA Concrete is required for a bridge pier pile cap in contact with the ground in

Seabrook, NH$.$ You have the following coarse and fine aggregates available:

Coarse Aggregates: $\frac{3}{4}$ inch Nominal Maximum Size $($ASTM C$33)$ gravel, Bulk Specific

Gravity $($oven$-$dry$)=2\mathrm{.}68$; Absorption $=0\mathrm{.}9\%($SSD $-$ Saturated Surface Dry$),$ and an

oven$-$dry rodded bulk density $($unit weight$)=102\mathrm{.}5l\frac{b}{f}{t}^3$; Lab trail batching moisture

content $=3\mathrm{.}2\%.$

Fine Aggregates: Sand $-$ Bulk Specific Gravity $($oven$-$dry$)=2\mathrm{.}65$; Fineness Modulus

F$.$M$.$