Civil Engineering Reference
In-Depth Information
7.1 Strength Correlation Factor
The Manufacturer shall show a correlation factor obtained by docu-
mented test results between the value of the ultimate concrete strength
(
f
c
) used in the design of spun poles and the value of the static-cast cyl-
inders. If no correlation between static-cast and spun concrete is fur-
nished, then the maximum spun concrete design strength allowed shall
not exceed the static-cast cylinder test by more than 5%.
′
7.2 Minimum Shipping Strength
Poles may not be shipped until the static concrete strength test has
achieved the 28-day value used in the design. An exception to this may
be taken only with prior approval of the Purchaser and only if the Manu-
facturer can produce statistical records showing a consistent gain in con-
crete strength over a predictable time period that would indicate that an
earlier shipping date would still result in the design strength being
achieved within the 28-day period.
8. INSPECTION AND QUALITY ASSURANCE
8.1 Inspection by Purchaser
The Purchaser or a company-authorized representative shall have
access to the work at all times for inspection wherever the poles are in
preparation or progress. The Manufacturer shall provide proper facilities
for such access and inspection without additional cost to the Purchaser.
All materials will be subject to jobsite inspection. To avoid delays
and complications, the Purchaser will make every effort to inspect the
poles upon delivery and notify the Manufacturer of any problems imme-
diately. Material may be rejected at the time of the fi rst inspection or at
any time defects are found during the progress of the erection or
installation.
Inspection by the Purchaser or waiving of inspection shall not relieve
the Manufacturer of the responsibility for furnishing products that
conform to the requirements of this specifi cation.
8.2 Manufacturer's Quality Assurance Program
The Manufacturer shall have an active in-plant quality assurance
program and perform daily checks and tests on the products made. The
program shall cover the entire production process, including the delivery
of the product. A written record of these tests and inspections shall be
made at the Manufacturer's plant facility for the Purchaser's review. Each
pole manufactured shall have a unique identifi cation number that corre-
lates to a specifi c quality control inspection traveler and report.
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