1.7.3
Heating Equipment for Storage Tanks
The equipment shall consist of coils and equipment for producing steam or
hot oil and be designed to prevent the introduction of steam or hot oil
into the material. An armored thermometer with a range of 35 to 200
degrees C 100 to 400 degrees F shall be affixed to the tank so the
temperature of the bituminous material may be determined at all times.
1.7.4
Power Rollers
Power rollers shall be steel-wheeled or pneumatic-tired type, conforming to
the following requirements:
a.
Steel-wheeled rollers shall have at least one steel drum and weigh
a minimum of 4 metric tons 5 tons. Steel wheels of the rollers
shall be equipped with adjustable scrapers.
b.
Pneumatic-tired rollers shall be self-propelled and have wheels
mounted on two axles in such manner that the rear tires will not
follow in the tracks of the forward group. Tires shall be
uniformly inflated to not less than 414 kPa 60 psi nor more than
552 kPa 80 psi pressure. The pneumatic-tired rollers shall be
equipped with boxes or platforms for ballast loading and shall be
loaded so that the tire print width of each wheel is not less than
the clear distance between tire prints.
1.7.5
Mechanical Spreaders
The spreaders shall be adjustable and capable of spreading aggregate at
controlled amounts per square yard, as specified.
1.7.6
Brooms and Blowers
The machines shall be of the power type, capable of cleaning surfaces to be
treated.
1.7.7
Scales
The scales shall be standard truck scales of the beam type equipped with a
weight-recording device. The scales shall be sufficient in size and
capacity to accommodate the trucks used in hauling aggregates. The scales
shall be tested and approved by an inspector of the State Inspection Bureau
charged with scale inspection within the state in which the project is
located. If an official of the inspection bureau is not available, the
scales shall be tested in accordance with state specifications by the
Contractor in the presence of the Contracting Officer. The Contractor
shall have the necessary number of standard weights on hand at all times
for testing the scales.
1.7.8
Weighhouse
The house shall be weatherproof and shall be constructed in a manner to
afford adequate protection for the indicating and recording devices of the
scales.
1.8
SAMPLING AND TESTING
The sampling and testing shall be the responsibility of the Contractor.
Sampling and testing shall be performed by an approved commercial testing
SECTION 02745
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