تم الحل ✓
categoryهندسة مدنية
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
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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