Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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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.
w/c (%)
Average compressive
strength of cubes (MPa)
45 50 55 60
35 25 20 15
The water-cement ratio (in percent, round off to the lower integer) to be used in the mix
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Transcribed Image Text:.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. w/c (%) Average compressive strength of cubes (MPa) 45 50 55 60 35 25 20 15 The water-cement ratio (in percent, round off to the lower integer) to be used in the mix
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