Which sample of concrete may be expected to have highest value of thermal conductivity
A)Dry concrete having 0.4% rein-forcement
B)Concrete having 10% moisture by volume
C)Concrete having 10% meisture by volume and 0.4% reinforcement
D)Dry concrete
E)Concrete having 10% moisture by volume and 0.6% reinforcement

Question

Quizplus · Accepted Answer

Concrete with higher moisture content and reinforcement typically exhibits higher thermal conductivity. Moisture increases the thermal conductivity of concrete because water is a better conductor of heat than air. Additionally, metal reinforcement also increases thermal conductivity due to metals' high thermal conductivity compared to concrete. Therefore, concrete with both 10% moisture by volume and 0.6% reinforcement would have the highest thermal conductivity among the given options.

Which Sample of Concrete May Be Expected to Have Highest