Question

What is effective thermal conductivity?

Answer 1

Answer:

Thermal movement is basically caused by the expansion and contraction of the fabric of the building due to hot and cold weather. ... Modern structures are sometimes built without any expansion joints so the thermal movement cannot be accompanied within the masonry so cracking occurs.

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Answer 2

Answer:

This parameter may be considered a logical extension of the thermophysical property known as thermal conductivity, such as used for solid, liquid or gaseous materials. Both are a measure of a material's ability to transfer energy and may be defined for steady-state, one-dimensional flow by.

Explanation:

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