2010 Construction and Material Specifications - Ohio Department of ...

703.1�
6. Granular Material Type F. Furnish material according to the following:
a. Well graded material.
b. A gradation with a top size from 8 inches (200 mm) to 3 inches
(76 mm) and a bottom size of No. 200 (75 µm) sieve.
c. An evenly graded material between the top and bottom size.
d. Compactable, stable, and serves the intended use.
D. Shale. Furnish shale as defined in 203.02 and as further defined below.
Ensure that the shale is tested for durability to determine whether the shale is hard
or soft shale. The Engineer will field test the shale according to the following:
1. The Engineer will obtain a typical 6-inch (150 mm) diameter piece of
shale. If a 6-inch (150 mm) diameter sample cannot be obtained, then the shale is
soft shale.
2. The Engineer will place the shale in a bucket of water. The Engineer
will examine the deterioration or slaking after 48 hours.
3. After 48 hours if the material has not deteriorated, then the shale will
be broken down by hand pressure. If the material retained on the 3/4 inch (19.0
mm) sieve is 75 percent or less, then the shale is soft shale.
4. If more than 75 percent of the shale is retained on the 3/4 inch (19.0
mm) sieve or if the material does not deteriorate, then the shale will be field tested
for hardness. The field test for hardness will consist of compacting the shale with
a steel drum roller with a minimum compressive force of 500 pounds per lineal
inch (57 kN/mm) of roller drum width. Provide documentation to the Engineer to
verify the steel drum meets the compressive force requirements.
a. If more than 40 percent of the shale breaks down, by visual
inspection, with six complete passes with a steel drum roller, then
the shale is soft shale.
b. If less than 40 percent of the shale breaks down with six complete
passes with a steel drum roller, by visual inspection, the shale is
hard shale.
703.1� Aggregate Materials for 304. Furnish aggregate that is CCS, crushed
gravel, crushed ACBFS, GS, or OH slag.
Furnish GS according to the requirements of 703.08.
Furnish OH slag according to 703.14
Furnish ACBFS according to Supplement 1027.
Determine aggregate acceptance before incorporation into the work based on
samples taken from stockpiles.
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