Question: We require a mix with a mean 2 8 - day compressive strength of 3 2 MPa. The slump is selected to be 3 5

We require a mix with a mean 28-day compressive strength of 32MPa. The slump is selected to be 35mm. The maximum size of aggregate is 12.5mm, its bulk density is 1630kgm3, and its specific gravity is 2.64. The available fine aggregate has a fineness modulus of 2.80 and a specific gravity of 2.58. No air entrainment is required. The cement relative density is 3.15.
1- Design the concrete mix according to ACI method satisfying the above requirements (find water, cement, fine and coarse aggregate masses (in kgm3) and volumes (in m3) to form 1m3 of concrete.).
2- If you have a concrete delivery truck of 9m3 capacity, what are the amounts of water, cement, fine and coarse aggregate (in kg) that this truck will be loaded for its full capacity?
We require a mix with a mean 2 8 - day

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