aggregate in one pass. The machine shall be capable of distributing the
bituminous material uniformly, at even heat, and in controlled amounts and
inmediately spreading aggregates uniformly, in controlled amounts, over the
surface to be sealed.
1.5.11
Vacuum Sweepers for Fog Seal
Provide self-propelled, vacuum piclup sweeper capable of removing loose
sand, water, and debris from pavement surface.
1.6
WEATHER LIMITATIONS
**************************************************************************
NOTE: Retain correct temperatures depending on the
type of coating used for the project.
**************************************************************************
The coating shall be applied when the existing surface is dry, and when the
weather is not foggy, rainy, or when the wind velocity will prevent the
uniform application of the bitumen [or aggregates]. [Apply the bituminous
seal coat only when the atmospheric temperature is above 15.5 degrees C 60
degrees F in the shade and when the pavement surface temperature is above
15.5 degrees C 60 degrees F, unless otherwise directed.] [Apply fog seal
when atmospheric temperature is above 10 degrees C 50 degrees F and rising
or when pavement temperature is above 15.5 degrees C 60 degrees F, unless
otherwise directed.]
1.7
WAYBILLS AND DELIVERY TICKETS
**************************************************************************
NOTE: Delete this paragraph when lump sum bidding
is used.
**************************************************************************
The Contractor shall not remove bituminous material from the tank car or
storage tank until measurements of the remaining quantity have been taken.
1.8
SAMPLING AND TESTING
**************************************************************************
NOTE: Keep applicable tests and delete the others
depending on whether this Section is used for Seal
or Fog Coat.
**************************************************************************
Sampling and testing shall be performed by an approved commercial testing
laboratory or by facilities furnished by the Contractor. No work requiring
testing will be permitted until the facilities have been inspected and
approved. The first inspection shall be at the expense of the Government.
Costs incurred for any subsequent inspection will be charged to the
Contractor. Tests shall be performed in sufficient numbers and at the
location and times directed to ensure that the materials meet specified
requirements.
1.8.1
Samples
Aggregate samples for laboratory tests shall be taken in accordance with
ASTM D 75. Samples of bituminous material shall be taken in accordance
with AASHTO T 40 or ASTM D 140.
SECTION 02785
Page 10
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