Four standard concrete cylinders of 6-inch diameter cross section were tested under uniformly increasing axial compressive loads 28 days after casting concrete. The maximum measured loads were 121,000 lbs, 116,700 lbs, 128,800 lbs, and 119,100 lbs. What is the average compressive strength of this concrete in ksi?

Four standard concrete cylinders of 6-inch diameter cross section were tested under uniformly increasing axial compressive loads 28 days after casting concrete. The maximum measured loads were 121,000 lbs, 116,700 lbs, 128,800 lbs, and 119,100 lbs. What is the average compressive strength of this concrete in ksi?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter20: Design Of Rigid Pavements

Section: Chapter Questions

Problem 1P: Portland cement concrete consists of what four primary elements?

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