Example of Mix design proportion calculation You need to design the m...

Example of Mix design proportion calculation â€¢ You need to design the mix proportion of a...

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Civil Engineering

Example of Mix design proportion calculation
â€¢ You need to design the mix proportion of a grade 40 for a columnwith workability of 50
mm slump and w/c not more than 0.55. The maximum size of gravelaggregate is 10 mm
and the fine aggregate is quarry blast sand. The moisture contentof the aggregate is as
follow:
â€¢ The gravel aggregate is in moist condition with moisture contentof =3.5%, dry density
= 1700 kg/m3
â€¢ The sand is in moist condition with saturated surface dry density= 2600 kg/m3
. Percent
passing at 600ïm =35%,water absorption = 0.5%,
â€¢ Aggregate relative combined density (saturated surface dry) =2.60
â€¢ Cement used is Sulfate Resistance because part of column is insoil identified to contain
sulfate

Answer & Explanation Solved by verified expert

4.3 Ratings (722 Votes)

Ans Let the total volume of trial mix be 1 m3 then according to ACI 211191 table 633 for 50 mm slump and nominal aggregate size of 10 mm amount of water required per cubic meter of concrete is 207 kg Amount of water 207 kg per m3 concrete Since See Answer

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