CONSTRUCTION MATERIALS,METHODS...-PKG
4th Edition
ISBN: 9781337495530
Author: SPENCE
Publisher: CENGAGE L
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Chapter 13, Problem 11RQ
To determine
The colors in which marble is found.
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Briefly describe which is more important, a resume or a cover letter?Why? What is the purpose of the resume? What is the purpose of thecover letter?
A cylindrical container of internal diameter and height H =200 mm is filled with concrete asshown in the figure below. Beginning at room temperature (T = 20oC), the temperature isdecreased until the concrete develops internal tensile stress that may results in crack (as shown inthe figure on the right below). This is due to the thermal shrinkage of the concrete and strongadhesion between the concrete and the walls of the container. D = 100 mmDetermine the temperature at which the concrete develops a tensile crack.Hint: Assume that the concrete remains linearly elastic until failure.Information about concrete:E = 30 GPa (Young’s Modulus)ν = 0.2 (Poisson’s Ratio)α = 12 ·10-6mm/mm/ oC (Coefficient of thermal expansion)(σt)max = 3 MPa (tensile strength)
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CONSTRUCTION MATERIALS,METHODS...-PKG
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