1.7.2
Bituminous Material Requirements
Samples of bituminous materials shall be obtained by the Contractor;
sampling shall be in accordance with ASTM D 140. Tests necessary to
determine conformance with requirements specified herein will be performed
by the Contracting Officer without cost to the Contractor. Sources where
bituminous materials are obtained shall be selected in advance of time when
materials will be required in the work, and samples of the specified
asphalt cement shall be submitted for testing not less than [_____] days
before production of the asphalt mixture. In addition to initial
qualification testing of bituminous materials, samples shall be taken and
submitted for testing before and during construction when shipments of
bituminous materials are received or when necessary to assure that handling
or storage has not been detrimental to the bituminous material.
1.7.3
Bituminous Mixtures
Sampling and testing of bituminous mixtures will be accomplished by the
Contracting Officer. The Contractor shall provide labor and facilities to
assist in obtaining the samples.
1.8
WAYBILLS AND DELIVERY TICKETS
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NOTE: This paragraph will be deleted for lump-sum
contract jobs.
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Before the final statement is allowed, the Contractor shall file with the
Contracting Officer certified waybills and certified delivery tickets for
all aggregates and bituminous materials actually used in the construction
and covered by the contract.
1.9
PROTECTION OF PERSONS AND PROPERTY
Paving construction operations shall be conducted in a manner that will
ensure the safety of persons and property.
1.10
MAINTAINING TRAFFIC
Maintain vehicular and pedestrian traffic at all times in accordance with
State or Local DOT requirements, by keeping open vehicular traffic lanes or
by providing detour routes. Barricade and post with warning signs for
safety and directing traffic. Provide flashing warning lights during
non-daylight hours.
PART 2
PRODUCTS
2.1
AGGREGATES
Aggregates shall consist of natural sand, crushed stone, crushed gravel,
crushed slag, and screenings, as required. The portion of materials
retained on the 4.75 mm No. 4 sieve shall be known as coarse aggregate, the
portion passing the 4.75 mm No. 4 sieve and retained on the 0.075 mm No. 200
sieve as fine aggregate, and the portion passing the 0.075 mm No. 200
sieve as mineral filler. Aggregate gradation shall be in accordance with
TABLE I. TABLE I is based on aggregates of uniform specific gravity; the
percentage passing various sieves may be changed by the Contracting Officer
when aggregates of varying specific gravities are used. Adjustments of
SECTION 02747
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