D. In the absence of service records, resistance to disintegration from the type of
exposure to which the stone will be subjected will be determined by the
following tests:
1. The results of the abrasion test (ASTM C535) shall indicate a percentage
loss of not more than forty (40) after five hundred (500) revolutions.
2. The results of the sulfate soundness test (ASTM C88) shall indicate a loss
not exceeding ten percent (10%) after five (5) cycles.
E. _Riprap shall generally meet the following gradation requirements:
Riprap
Sieve Size Percent Finer
by Weight
12-inch 100
8-inch 40-70
6-inch 20 - 40
3-inch 0-20
2-inch 0-10
F. Control of gradation will be by visual inspection.
G. Any difference of opinion between the CQA Consultant and CONTRACTOR shall
be resolved by dumping and checking the gradation of two (2) random
truckloads of stone. Mechanical equipment, a sorting site, and labor needed to
assist in checking gradation shall be provided by CONTRACTOR at no
additional cost to OWNER.
2.7. TOPSOIL
A. Topsoil shall be used for areas beyond the cell limits disturbed during
construction. Topsoil shall be free of trash, ice, snow, tree stumps, roots, sticks,
clay, peat, weeds, sod, and other non-soil based organic materials.
B. Topsoil shall be friable soil containing no stone greater than 2 inches in
diameter and contain no more than 70 percent of the material passing the No.
200 sieve.
C. Topsoil shall be obtained from naturally well-drained areas.
D. Topsoil shall not be excessively acid or alkaline nor contain material harmful
to plants.
PART 3 - EXECUTION
3.1 EQUIPMENT
File No. 3066.09 Earthwork 02200 - 5 of 14 December 2017
