A one-sack trial mix that meets specification requirements has the proportions shown below. Determine the quantity of each ingredient by weight required to batch a 16S mixer with no overload using an integer number of sacks of cement. The field excess moisture of the sand is 4%. The gravel is saturated, surface-dry.

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Weight Component lb Kg Specific Gravity Cement 94 42.6 3.15 Gravel 400 181.4 2.66 Sand 200 90.7 2.65 Water 50 22.7 1.00