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Yakvenalex [24]
3 years ago
11

Air entrainment is used in concrete to: __________.

Engineering
1 answer:
Dahasolnce [82]3 years ago
5 0

The answer is number 2) Increase the resistance of the concrete to freeze-thaw damage.

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You find an unnamed fluid in the lab we will call Fluid A. Fluid A has a specific gravity of 1.65 and a dynamic viscosity of 210
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specific gravity of fluid A = 1.65

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<u>Calculate the kinematic viscosity of Fluid A </u>

First step : determine the density of fluid A

Pa = Pw * Specific gravity =  1000 * 1.65 = 1650 kg/m^3

next : convert dynamic viscosity to kg/m-s

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Kinetic viscosity of Fluid A = dynamic viscosity / density of fluid A

                                            = 0.21 / 1650 = 1.2727 * 10^-4 m^2/sec

Convert to stokes = 1.2727 stokes

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