A plain concrete usually has a ___ amount of cement compared to lean concrete.
A: higher
B: lower
C: neither A or B
D:
A: higher
B: lower
C: neither A or B
D:
举一反三
- Reinforced Cement Concrete is made by __________ , in order to create __________ in concrete.
- Compared with plain concrete, the bearing capacity of reinforced concrete beams is A: the same B: improved a lot C: improved a little D: unable to be identified
- Compared with plane concrete beams, reinforced concrete beams have much higher cracking resistance(抗裂能力).
- Compared with plain concrete beams, the ability of reinforced concrete beams to resist cracking is A: improved a little B: improved a lot C: totally the same D: None of the above
- Which of the following is not the reason why concrete needs reinforcement? A: Reinforcement has good tensile resistance, while concrete has good compressive resistance. B: Reinforcement has good compressive resistance as concrete. C: Engineers prefer ductile failure to brittle failure of the members. D: Reinforcement and concrete can work together to increase the bearing capacity of the members.