2010 Construction and Material Specifications - Ohio Department of ...

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403.07
the acceptance. While working with the District, immediately take steps to correct
the problem according to the QCP. Failure to achieve a quick resolution will result
in a change to Unconditional Acceptance.
3. District Testing Problem. If the District testing program has a
problem as confirmed by the additional testing and District review, the District
will correct the problem, throw out the original District test results and take new
samples from the samples representing the days or Lots in question for the VA
tests.
F. Contractor Removal, Restoration. If repeated problems with poor
comparison of tests are not the District’s fault; or poor comparison of Contractor
tests to the JMF; or with plant operation, input materials, or any of the other
requirements of Department specifications occur in a single project or successive
projects, the District will request an opinion from the QCQC before notifying the
Contractor of removal from Department VA. The District will immediately notify
the Contractor of the removal with a follow up letter from the District Engineer of
Tests. Once notified, acceptance of asphalt mixtures is by Unconditional
Acceptance. Restoration of the VA procedures may occur on a future project with
a District recommendation to the QCQC based on consistent improved plant
operation and mix control, a review of the Contractor problems and resolutions,
and a review of the QCP by the QCQC.
403.07 Unconditional Acceptance. If the Contractor is removed from
Department VA, the following will occur.
The Contractor must bring its QCP and operation to a level acceptable to the
District and QCQC before production continues. The DET will ensure that the
project C-95 (Contractor’s Prequalification Rating survey) will reflect the change
to Unconditional Acceptance in all of the appropriate C-95 categories. The
Department will accept all material for Department projects from the facility under
Unconditional Acceptance. While the facility is under Unconditional Acceptance,
acceptance of small quantities under the small quantities policy will not apply.
Quality control testing requirements specified in 403.05 are modified as
follows:
A. The required number of test series is a minimum of four each per production
day or night. If a production day is less than 6 hours, the Department may reduce
the frequency but not less than one test series per every 3 production hours.
B. For Basic mixes, if the variation from the JMF for one test is ±8 percent
passing the No. 4 (4.75 mm) sieve or ±0.3 percent asphalt binder content,
investigate and correct the problem, then resample and test. Maintain the moving
average of three tests within ±4 percent passing the No. 4 (4.75 mm) sieve and
±0.2 percent asphalt binder content. In addition to the Quality Control Report,
maintain control charts according to 441.10 for asphalt binder content and the No.
4 (4.75 mm) sieve. If the Range difference in any three consecutive tests is greater
than 0.6 percent for asphalt binder content or 10.0 percent passing the No. 4 (4.75
mm) sieve, notify the Monitoring Team. If Range deviations as specified
continue, cease production.