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Light weight cement content for compressive strength 27.58 MPa is _______ kg/m^3.

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Light weight cement content for compressive strength 27.58 MPa is _______ kg/m^3.

(a) 237-303

(b) 261-332

(c) 314-392

(d) 373-445

I had been asked this question during an interview for a job.

My doubt stems from Structural Light Weight Concrete in section Special Concrete and Concreting Methods of Concrete Technology

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Correct answer is (c) 314-392

The best explanation: Light weight cement content for compressive strength 27.58 MPa is 314-392 kg/m^3. 261-332 is the compressive strength of 20.68 MPa.

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