Civil Engineering Structure Discussion Area ---- [Daily Question] Question from Issue 20151206
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True or False: In reinforced concrete structures using HRB335 grade rebar, the concrete strength grade should not be lower than C20. ( ) Answer: Yes
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. (Yes)
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In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. ( √ )
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. ( √ )
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. (Yes) When the strength grade is below C20, HRB335 rebars cannot fully exhibit their performance; requirements such as anchorage also need to be much longer. And durability is also a problem. Hence, this requirement exists.
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. (Yes) Strength matching
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. (Correct)
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. (Correct)
In reinforced concrete structures using HRB335 grade steel bars, the concrete strength grade should not be lower than C20. (Correct)