Question: Consider a normal weight concrete having a 2 8 - day design strength of 4 0 0 0 psi. The plant where the concrete is

Consider a normal weight concrete having a 28-day design strength of 4000psi. The plant where the concrete is produced has standard deviation of compressive strength equal to 500 psi for this mix design.
a. What true tensile strength should be counted on in design for this concrete?

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