CIVE 2700 Exam 1 UPDATED
QUESTIONS AND CORRECT ANSWERS
Approximately 15 to 30% of cement clinker is dicalcium silicate (C2S). True or False? - CORRECT
ANSWER True
To avoid failure, the applied stresses (σ) should be less than the strength (σallowable) of the material.
True or False? - CORRECT ANSWER True
In Saturated Surface-Dry (SSD) condition, the aggregates can absorb water to fill the voids. True or
False? - CORRECT ANSWER False
In normal strength concrete, one expects the strength of the aggregate particles to be greater than that
of the Portland cement paste. True or False? - CORRECT ANSWER True
High permeability is recommended for the concrete exposed to harsh and corrosive environment. True
or False? - CORRECT ANSWER False.
You have been asked to design a concrete mix for piers of marine structure with a medium sulphate
exposure. The piers are large (4x4m). Choose two types of cement that are the most suitable for this
application. - CORRECT ANSWER Type 20, Type 40
Most important disadvantage of the heat in concrete - CORRECT ANSWER Can create no
uniform thermal fields in the concrete and cause cracking.
You have been asked to design a concrete mix for piers of a marine structure. The piers are large
(4x4m). Choose two very major concerns in choosing the cement type. - CORRECT
ANSWER 1. Exposure to seawater and corrosion
2. Amount of heat released in the large element and massive concrete pouring
What type of sieve-analysis curve meets the grading limits defined in the ASTM-C33? - CORRECT
ANSWER The curves represent the upper and lower limits.
QUESTIONS AND CORRECT ANSWERS
Approximately 15 to 30% of cement clinker is dicalcium silicate (C2S). True or False? - CORRECT
ANSWER True
To avoid failure, the applied stresses (σ) should be less than the strength (σallowable) of the material.
True or False? - CORRECT ANSWER True
In Saturated Surface-Dry (SSD) condition, the aggregates can absorb water to fill the voids. True or
False? - CORRECT ANSWER False
In normal strength concrete, one expects the strength of the aggregate particles to be greater than that
of the Portland cement paste. True or False? - CORRECT ANSWER True
High permeability is recommended for the concrete exposed to harsh and corrosive environment. True
or False? - CORRECT ANSWER False.
You have been asked to design a concrete mix for piers of marine structure with a medium sulphate
exposure. The piers are large (4x4m). Choose two types of cement that are the most suitable for this
application. - CORRECT ANSWER Type 20, Type 40
Most important disadvantage of the heat in concrete - CORRECT ANSWER Can create no
uniform thermal fields in the concrete and cause cracking.
You have been asked to design a concrete mix for piers of a marine structure. The piers are large
(4x4m). Choose two very major concerns in choosing the cement type. - CORRECT
ANSWER 1. Exposure to seawater and corrosion
2. Amount of heat released in the large element and massive concrete pouring
What type of sieve-analysis curve meets the grading limits defined in the ASTM-C33? - CORRECT
ANSWER The curves represent the upper and lower limits.
