CE200 FINAL EXAM PREP update , Questions and answers with

CE200 FINAL EXAM PREP ( update), Questions and answers with

1
The quality of portland cement concrete depends on, more than any other factor,
the:
1) Water/cement (w/c) ratio of the portland cement concrete (PCC)
2) Quality of the paste of the portland cement concrete (PCC)
3) Reinforcing rebar used in the reinforced portland cement concrete (PCC)
4) All of the above are true
5) None of the above is true
2
Asphalt binders:
1) Are a type of bitumens, which are characterized as organic materials, i.e., they
are made of hydrocarbon chains, like tars and pitches
2) May be biogenic, i.e., originating from living tissue, or geogenic, i.e.,
originating from inside the Earth itself
3) May be natural or native asphalts, i.e., asphalts are the residue of
hydrocarbons that rise to the surface of the Earth, and have their smaller chains
evaporate over time, or may be the product of a manufacturing process, i.e.,
asphalts that are the residue of the refining process of petroleum