Answer only when know..exactly otherwise skip it please  6 6 .  Explain the significance of creep in concrete structures. How is creep measured and what factors influence it ?

A concrete test cylinder having length L=12 in and diameter d=6 in is subjected to axial compressive forces P in a testing machine. If the maximum shear stress in the concrete is not to exceed 2,000 psi, what is the safe value for the axial load p?A. 452,389 lb. B. 113,100 lb. C. 904,778 lb. D. 56,550 lb. The answer for this is letter B 113,100 lb but I dont know its solution. Please give me complete solution in order to get the 113,100 lb.

Complete the table

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Two 150 mm * 300 mm concrete cylinders with randomly oriented steelfiber contents of 0 and 2% by weight, respectively. After curing for 28 days,the specimens were subjected to increments of compressive loads until failure. The load versus deformation results were as shown in Table P7.45. Assuming that the gauge length is the whole specimen height, determine the following:a. The compressive stresses and strains for each specimen at each loadincrement.b. Plot stresses versus strains for the two specimens on one graph.c. The initial modulus of elasticity for each specimen.d. The ultimate strength for each specimen.e. The strain at failure for each specimen.f. Toughness. Curves may be approximated with a series of straight lines.g. Comment on the effect of adding fiber on the following:i. Modulus of elasticityii. Ultimate strengthiii. Ductilityiv. Toughness

A. What are the primary and secondary parameters upon which durability of concrete depends on? Discuss in detail one PRIMARY PARAMETER to which concrete is exposed in the image shown: *

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Describe suction in stress path analysis.