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dops		 What is the allowable compressive strength of concrete? View All


16 years ago - 4 weeks left to answer. - 1 response - Report Abuse
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 The compressive strength of concrete are used to determine the concrete mixture and meet the strength requirement of a specific job.

It is measured by breaking cylindrical concrete specimens in a compresson-testing machines. Compressive strength is calculated from the failure load divided by the coss-sectional area resisting the load and reported in units of pound-force per square inch (psi) of in megapascals (MPa).

Generally speaking, concrete used for residential purpses is around 2,500 psi (17 MPa), around 4,000 psi (28 MPa) for commercial uses, and as high as 10,000 (70 MPa) for other specified applications.

16 years ago

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