Question (1) a) Compare between fresh and hardened concrete, and illustrate the factors that affect on them. b) State th

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Question 1 A Compare Between Fresh And Hardened Concrete And Illustrate The Factors That Affect On Them B State Th 1 (47.64 KiB) Viewed 64 times

Question (1) a) Compare between fresh and hardened concrete, and illustrate the factors that affect on them. b) State the main proprieties of fresh concrete, and the main proprieties of hardened concrete. Question (2) Define the following expressions: a) Consistency. b) Workability. c) Segregation. d) Bleeding. Question (3) State by curves the effect of w/c ratio, coarse aggregate, fine aggregate, cement fineness, and admixtures on consistency of fresh concrete. Question (4) a) Explain in details how to evaluate the consistency of fresh concrete using the slump test, and state with sketches the types of slump for the fresh concrete. b) Explain in details how to evaluate the consistency of fresh concrete using the flow test. c) Explain in details how to evaluate the consistency of fresh concrete using the ball penetration test Question (5) a) Explain the effect of w/c ratio, aggregate, cement, and admixtures on workability of fresh concrete b) Explain in details how to evaluate the workability of fresh concrete using the compacting factor test. Question (6) a) Explain the main reasons that cause the segregation of fresh concrete, and how to decrease it. b) State what's the meaning by bleeding of fresh concrete, and the main reasons for it..