A: $(10$ points$)$

Aggregates make up $100\%$ of base course, about $95\%$ of HMA and

$\%$ of PCC$.$

List five different characteristics of aggregates and tests used to measure them that are considered very

important for Portland cement concrete applications.

List five different characteristics of aggugate and tests ased to mesure them that are considered very

important for asphali concrete applications.

The shape and surface texture of aggrogate partibes are importan for both Portland cement concrete and

asphalt conorete.

a$.$ For preparing HMA, woutd you profor round and smanth aegrogate or sough and angular aggregate?

Briefly explain why $($ne more than three lines$)$

b$.$ For preparing Aggregate Base, would you profor round and smoobh aggregate or rough and angular

aggregate? Briefly explain wity $($ne more than thres lines$).$