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Q2)What would be the maximum aggregate size used for the given mixture properties by using ACI Method...

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Civil Engineering

Q2)What would be the maximum aggregatesize used for the given mixture properties by usingACI Method of Mix Design. 28-day specifiedconcrete strength is 12 Mpa, standard deviation is choosen as3.7Mpa and it is required that no more than 1 testresult in 200 will fall below the specified strength.

Project Title:Detoration of wood column of acommercial building

Project summary:Wood deterioration at the lowerlevel of a heavy timber column, which supports five floor levels,was remedied by removing a section of column and the constructionof a new concrete pier and footing.

For Coarse Aggregate (Uncrushed):SSD Bulk Specific Gravity:2.60, Absorption Capacity: 1.8 %, Total Moisture: 2.3 % and DryRodded Unit Weight: 1430 kg/m3.

For Fine Aggregate (Crushed):SSD Bulk Specific Gravity: 2.70,Total Moisture: 3.4% and Free Moisture:1.4%. FM= 2.65, Zone II.

Cement:Portland Composite Cement, Specific Gravity: 3.01. For1,4 m3cement is calculated as 48 kg.

Q3) use the data in question 2 and determinethe amount of chemical admixture required for 0.4%

Answer & Explanation Solved by verified expert
4.1 Ratings (673 Votes)
Ans 2 According to ACI maximum size of aggregate should bot belarger than 1 15th of the minimum dimension of structural members2 13rd thickness of slabAccording to given consditions    See Answer
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