Problem 2: If f = 3 ksi what is the modulus of elasticity Ec and the maximum tensile stress fr that the concrete can carry before cracking (use ACI recommended equations). Assume a unit lb lb lb weight of the plain concrete is: a. w₁ = 90—3; b. wc = 1183, c. Wc = 160

Problem 2: If f = 3 ksi what is the modulus of elasticity Ec and the maximum tensile stress fr that the concrete can carry before cracking (use ACI recommended equations). Assume a unit lb lb lb weight of the plain concrete is: a. w₁ = 90—3; b. wc = 1183, c. Wc = 160

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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Question

Problem 2: If f = 3 ksi what is the modulus of elasticity Ec and the maximum tensile stress fr
that the concrete can carry before cracking (use ACI recommended equations). Assume a unit
weight of the plain concrete is: a. Wc = 90- b. w
lb
lb
118-
ft39
ft3) C. W = 160-
Problem 3: Wight 3-6
Rugblom 4: Wight ? 7
lb
ft3

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