Using the ACI and DoE mix design methods, design a concrete mix for an application requiring a characteristic strength of 40MPa at 28 days and a slump of 10-30 mm.
The materials available are:
OPC- Uncrushed fine and coarse aggregate
S.G. of aggregate=2.68
Max. Nominal size of c.aggregate =10mm
F.agg. confirms to grading Zone III.
Concrete is likely to be exposed to moderate climate.
Standard dev. 6.3, defective rate=5%,prob.factor k=1.65
(Appropriate assumption for any missing data and applied charts is required
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