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categoryهندسة مدنية schoolبكالوريوس event_available2026-07-13

السؤال

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Example 9: The following requirements are specified for the mix design as follows; • Characteristic compressive strength = 35 MPa at 28 days; . Defective rate = 2.5%; Cement strength class 52.5; • • Slump required = 100 mm; Max. Aggregate size = 20 mm; Coarse aggregate CRUSHED (10, 20mm), fine aggregate UNCRUSHED (55% pass 600 microns) • Relative density of aggregates = 2.75; Maximum allowable free-water/cement ratio = 0.50; •Minimum allowable cement content = 285 kg/m3; Maximum allowable cement content = 400 kg/m3; • Absorption of fine aggregate = 1.8%; Absorption of coarse aggregate = 1.2% • Total Moisture content of coarse aggregate = 2.3%; Total Moisture content of fine aggregate = 3.4% Calculate the quantities of cement, water, fine aggregate, and coarse aggregate with a trial mix of 0.08 m³ concrete.

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