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What is the 10 day compressive failure stress in N/mm^2?

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What is the 10 day compressive failure stress in N/mm^2?

(a) 40

(b) 1500

(c) 3.4

(d) 180

This question was posed to me in an online quiz.

Question is from Concrete Cloth, Polymer Impregnated Concrete in chapter Special Concrete and Concreting Methods of Concrete Technology

1 Answer

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Correct answer is (a) 40

The explanation is: This test is based on ASTM C473 – 07 and the 10 day compressive failure stress is 40 N/mm^2.

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