Lightweight structural concrete is heavier than insulating concrete.
Correct Answer:
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Q13: The slump of concrete is measured
A)14 days
Q14: In a No. 4 sieve, the dimensions
Q15: ASTM specifications classify Portland cement into five
Q16: Which of the following materials is a
Q17: White Portland cement is generally weaker than
Q19: Lime is made by
A)mixing crushed limestone with
Q20: Which type of Portland cement is commonly
Q21: In a high- rise building, the concrete
Q22: What are the natural colors of quick
Q23: A #8 reinforcing bar has a diameter
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