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Q1) Designa concrete mixture proportions which will be used for offshore concrete platform.Norway is a world leader...

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Civil Engineering

Q1) Designa concrete mixture proportions whichwill be used for offshore concrete platform.Norwayis a world leader on offshore concrete platforms with 7 of theworld’s 30 larger offshore concrete structures located on theNorwegian continental shelf. The first of these platforms where theEkofisk Tank installed in 1974 and the last was Troll gravity basedstructure installed in 1996. The Sakhalin project is located in aharsh and artic environment where concrete structures have provenexcellent characteristics with a minimum of maintenance. 80 mmslump value is required for the Sakhalin project. 28-days concretecharacteristic strength is 8 MPa. It is required that no more than1 test result in 100 will fall below the specified strength. Thefine aggregate has a fineness modulus of 2.60 and Zone 3. ForCoarse Aggregate (Uncrushed):SSD Bulk Specific Gravity: 2.65,Absorption Capacity: 2.4%, Total Moisture:1.4% and Dry Rodded Unit Weight: 1345kg/m3.  For Fine Aggregate (Uncrushed):SSDBulk Specific Gravity: 2.70, Total Moisture: 3.4%and Free Moisture: 2 %. Cement:  Portland CompositeCement, Specific Gravity: 2.97. For 0.5 m3of concrete,binder amount is calculated as 120 kg(Use ACI Method of MixDesign)

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ACI method of mix design    See Answer
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