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The characteristic compressive strength of concrete required in a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table.
The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is________
    Correct answer is '46.7'. Can you explain this answer?
    Verified Answer
    The characteristic compressive strength of concrete required in a proj...
    fck = 25 ; σ = 4 MPa
    fm = fck + 1.65σ = 31.6 MPa
    Using interpolation

    = 46.7 (Rounded off to the lowest integer).
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    The characteristic compressive strength of concrete required in a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table.The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is________Correct answer is '46.7'. Can you explain this answer?
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    The characteristic compressive strength of concrete required in a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table.The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is________Correct answer is '46.7'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about The characteristic compressive strength of concrete required in a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table.The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is________Correct answer is '46.7'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The characteristic compressive strength of concrete required in a project is 25 MPa and standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the table.The water-cement ratio (in percent, round off to the lower integer) to be used in the mix is________Correct answer is '46.7'. Can you explain this answer?.
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