PODED-G

17 November 1976

Quarry, Rock Crushing, Screening and Central Mix Batch Plant Operations for
Cleanup of Enewetok Atoll, MI.
2.

Assumptions:
a. Estimated quantity of concrete aggregates
+

12,000 cu.yd.—
b.

(In concrete)

Estimated proportions by volume to yield a workable
mix design.

(Final mix design shall be established

in the field.)

c.

3/4" to No. 4

4asyt

Sand

55%

Coarse aggregate placed in stockpiles will bulk
and handling of aggregates will result in losses.

The estimated percentages of bulking and losses
are:

Bulking

+4547

Losses

-

Total Correction factor
d.

+ 40%

+

The approximate proportions by volume of the
yield from crushing, screening and washing
Operations are:

3/4" to No. 4

237%, t

Sand

72% +

Losses from washing
3.

S% +

5%

+

Estimated surface area required for concrete aggregate borrow.
a.

Determine total volumes of coarse and fine aggregates

required for the estimated concrete mix,
3/4" to No. 4

(12000 cy) (45%)

5400 c.y.

Sand

(1200 c.y.) (55%)

6,600 c.y.

(mix)
(mix)

Select target paragraph3