1.8.2
Aggregates Source
Sources from which aggregates are to be obtained shall be selected and
notification thereof furnished the Contracting Officer within 15 days after
the award of the Contract. Tests for the evaluation of aggregates shall be
made by an approved commercial laboratory at no expense to the Government.
Tests for determining the suitability of aggregate shall include, but not
limited to: gradation in accordance with ASTM C 136, abrasion resistance
in accordance with ASTM C 131, clay lumps and friable particles in
accordance with ASTM C 142, unit weight and voids in accordance with ASTM C
29/C 29M, and flat and elongated particles in accordance with ASTM D 4791.
The use of an antistripping agent is subject to approval by the Contracting
Officer.
1.8.3
Bituminous Material Source
Sources from which bituminous materials are to be obtained shall be
selected and notification thereof furnished the Contracting Officer within
15 days after the award of the contract.
1.8.4
Equipment Calibration
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NOTE: Bracketed statements apply to Fog Seal;
remove when Fog Seal is not requirede in the project.
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The Contractor shall furnish all equipment and materials and labor
necessary to calibrate the bituminous distributor and the aggregate
spreader. All calibrations shall be made with the approved job materials
and prior to applying the coat materials to the prepared surface.
Calibration of the bituminous distributor shall be in accordance with ASTM
D 2995.[ Inspect all equipment prior to application of fog seal. Perform
work to calibrate tank and measuring devices of the distributor. Perform
inspection and calibration at the beginning of the work and at least once a
day during construction.]
1.9
DELIVERY, STORAGE AND HANDLING
Deliver emulsified asphalt (fog seal) to the site in a homogenous and
undamaged condition. Inspect the materials for contamination and damage.
Unload and store the materials with a minimum of handling. Protect stored
aggregate from contamination and segregation. Replace defective or damaged
materials.
PART 2
PRODUCTS
2.1
BITUMINOUS MATERIAL FOR SEAL COAT
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NOTE: One type of bituminous material will be
retained. All other materials and references will
be deleted.
Cutback asphalt grades MC- or RC-800, and MC- or
RC-250, in order of preference, are recommended for
most normal seal coat applications where a
rapid-setting binder providing maximum "hold" of
SECTION 02785
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