QUESTIONS AND VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
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EXAM 2026 [NEW VERSION]
which type of PC is most suitable for large volume concrete construction (large
dams) - ANSWER-type IV
the quality of portland cement concrete depends on, more than any other factor, the
- ANSWER-quality of the paste of the PCC
the paste in portland cement concrete includes - ANSWER-portland cement, mix
water, and admixtures
all the essential and desirable attributes of portland cement concrete PCC, such as
durability, impermeability, resistance to volume changes, depend more than any
other factor on - ANSWER-how well and how long the portland cement concrete
has been cured
, portland cement concrete PCC hardends or gains strength by the - ANSWER-
hydration of the portland cement
manufacturing of PC includes varying of proportion of the ingredients that are used
in the manufacturing of PC so as to produce different types of PC, thus producing
PCs of special properties that for example: - ANSWER-all of the above:
emit lower heat of hydration during the curing
gain strength more rapidly than ordinary pc
offer resistance to the action of sulfates on the hardened PCC
which of the following statements is not a cause of efflorescence - ANSWER-there
must be some degrees of sulfate present adjacent to the concrete element
the strength of cured or hardened PCC depends on, more than any other factor, the:
- ANSWER-water/cement ratio of the PCC
the most commonly used concretes in civil engineering construction are portland
cement concrete and asphalt concrete and in: - ANSWER-all of the above:
PCC, the binder is the paste, which consists of the PC, water, and admixtures
asphalt concrete, the binder is asphalt cement, sometimes with viscosity improving
agents
both concretes, the fillers are gravel or coarse aggregates and sand or fine
aggregates
when testing the timber specimen in compression parallel to the grain, a significant
deviation from the procedures prescribed in astm D 143 "standard test methods for
small clear specimens of timber" was: - ANSWER-not using a displacement-
controlled loading scheme (ie. inch/minute)