Concrete is required for several structural members of a residential house. Due to the present moisture, it is expected that the concrete shall be non-aerated (Non AE) with a 28 day compressive strength of 3,000 psi for slabs and 4,000 psi for beams and columns. Due to extra moisture present in the site, the slump to be used shall be the minimum allowed by the ACI mix. Using a 3/4 inch max aggregate size. compute for the weight of cement, water, coarse aggregate, and fine aggregate. Aggregate details: Cement: Type 1, Specific Gravity - 3.15 Coarse Aggregate: Bulk Specific gravity (SSD) = 2.65: absorption capacity = 4%, Dry-rodded unit weight= 100 lb/ft³; surface moisture=1.2% Fine Aggregate: Bulk Specific Gravity (SSD) = 2.60; Absorption capacity = 1.5%; Fineness modulus = 2.70; Surface moisture=4% Structural members dimensions: Column 8 300mm x 300mm x 3100mm (Length x Width x pcs Height) 9 300mm x 500mm x 4000mm (Length x Width x Beam pcs Height) Slab 12000mm x 4000mm x 400mm (Length x Width x Thickness) Required: Total number of bags needed if each bag is 50kg (110lbs) and total weight of aggregates and water needed.
Concrete is required for several structural members of a residential house. Due to the present moisture, it is expected that the concrete shall be non-aerated (Non AE) with a 28 day compressive strength of 3,000 psi for slabs and 4,000 psi for beams and columns. Due to extra moisture present in the site, the slump to be used shall be the minimum allowed by the ACI mix. Using a 3/4 inch max aggregate size. compute for the weight of cement, water, coarse aggregate, and fine aggregate. Aggregate details: Cement: Type 1, Specific Gravity - 3.15 Coarse Aggregate: Bulk Specific gravity (SSD) = 2.65: absorption capacity = 4%, Dry-rodded unit weight= 100 lb/ft³; surface moisture=1.2% Fine Aggregate: Bulk Specific Gravity (SSD) = 2.60; Absorption capacity = 1.5%; Fineness modulus = 2.70; Surface moisture=4% Structural members dimensions: Column 8 300mm x 300mm x 3100mm (Length x Width x pcs Height) 9 300mm x 500mm x 4000mm (Length x Width x Beam pcs Height) Slab 12000mm x 4000mm x 400mm (Length x Width x Thickness) Required: Total number of bags needed if each bag is 50kg (110lbs) and total weight of aggregates and water needed.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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