Absorption coefficient of concrete for what? For sound waves, mechanical vibrations, radiation, etc...
Next question is for what energy? Coefficient if a function of energy rather than a constant.
10^2 m^-1
The sound absorption coefficient indicates how much of the sound is absorbed in the actual material.The absorption coefficient can be expressed as:α = Ia / Ii ………………….. (1)whereIa = sound intensity absorbed (W/m2)Ii = incident sound intensity (W/m2)absorption coefficient of materials varies from 0 to 1
40
An absorption coefficient is a measure of the absorption of electromagnetic radiation as it passes through a specific substance - calculated as the fraction of incident radiation absorbed by unit mass or unit thickness.
1
atomic
The rate of sound absorption of an object, surface or body is called the "Absorption Coefficient" which relates to the amount of sound absorbed by the surface. see this chart for details http://www.saecollege.de/reference_material/pages/Coefficient%20Chart.htm
water absorption coefficient = 1/a x M/sqrt time a = surface area M = Mass of water absorbed This calculation is relevant to Properties of Masonry Units.
Can't answer without more information. Coefficient could refer to the friction, absorption or electrical coefficient, among very many others.
First, Manning's roughness coefficient is dimensionless. Second, usually unfinished concrete is assigned an n value of 0.014 whereas finished concrete is assigned an n value of 0.012.
0.45
I am also looking for this value,, any one knew about it?