A construction project requires a concrete mix with proportions of 1:3.1:3.9 on a weight basis. The following is availab

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A Construction Project Requires A Concrete Mix With Proportions Of 1 3 1 3 9 On A Weight Basis The Following Is Availab 1 (50.2 KiB) Viewed 41 times

A construction project requires a concrete mix with proportions of 1:3.1:3.9 on a weight basis. The following is available information. Determine the water volume in gal/yd for the concrete mix. Cement content: 5.4 sacks/yd!, specific gravity: 3.3 Sand: specific gravity (SG): 2.69 Gravel: specific gravity (SG): 2.65 A 23.71 B. 33.42 C. 32.71 D. 43.23 What is the main purpose of having entrapped air in concrete? A. To increase durability B. To increase workability C. To increase freeze-thaw resistance D. None of the above. What is the primary purpose of designing a super pave system? A. To provide long lasting concrete B. To provide long lasting asphalt C. To provide long lasting sub-base layers D. To provide long lasting roadways What is the main cause of alligator cracking in asphalt concrete pavements? A. High temperature B. Very low temperature C. Low asphalt binder contents D. Large number of loads over time