Choose one answer1.target mean strength fm (mpa)1. 28.122. 33.123. 40.124. 25.122.w/c ratio 1. 0.582. 0.613. 0.514. 0.483 .the free water content is (kg/m3)1. 1802. 2053. 1904 .1604.total aggregate content is (kg/m3)1. 1889.72. 1869.73. 1899.74. 1879.75.the coarse aggregate is (kg.m3)1. 1150.512. 1170.513. 1130.514. 1190.51 Q1. Using the British method, design a concrete mix to bear an average compressive strength of20 MPa at 28 days. Consider the following properties:Cement used is: Sulphate Resisting Portland cement with a specific gravity of 3.15.Required slump = 30 – 60 mmCoarse aggregate:uncrushed rocksMaximum size of 20 mm,The fine aggregate:uncrashed rocksThe fine aggregate falls in zone 2Assume zone A for figure 1Assume K = 1.64Please note: Do not Adjust the amount of water in the mix design

For sulphate resisting portland cement with uncrushed aggregate, compressive strength at 28 days is…

Answered: Q1. Using the British method, design a…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Choose one answer 1.target mean strength fm (mpa) 1. 28.12 2. 33.12 3. 40.12 4. 25.12 2.w/c ratio 1. 0.58 2. 0.61 3. 0.51 4. 0.48 3 .the free water content is (kg/m3) 1. 180 2. 205 3. 190 4 .160 4.total aggregate content is (kg/m3) 1. 1889.7 2. 1869.7 3. 1899.7 4. 1879.7 5.the coarse aggregate is (kg.m3) 1. 1150.51 2. 1170.51 3. 1130.51 4. 1190.51

Q1. Using the British method, design a concrete mix to bear an average compressive strength of
20 MPa at 28 days. Consider the following properties:
Cement used is: Sulphate Resisting Portland cement with a specific gravity of 3.15.
Required slump = 30 – 60 mm
Coarse aggregate:
uncrushed rocks
Maximum size of 20 mm,
The fine aggregate:
uncrashed rocks
The fine aggregate falls in zone 2
Assume zone A for figure 1
Assume K = 1.64
Please note: Do not Adjust the amount of water in the mix design

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