[(1) Prequalified Cement Sources
Cement shall be delivered and used directly from a mill of a
producer designated as a qualified source. Samples of cement for
check testing will be taken at the project site or
concrete-producing plant by a representative of the Contracting
Officer for testing at the expense of the Government. A list of
prequalified cement sources is available from Director, U.S. Army
Engineer Waterways Experiment Station (USACE-WES), 3909 Halls
Ferry Road, Vicksburg, MS 39180-6199, ATTN: CEWES-SC.]
[(2) Prequalified Pozzolan Sources
Pozzolan shall be delivered and used directly from a producer
designated as a qualified source. Samples of pozzolan for check
testing will be taken at the project site by a representative of
the Contracting Officer for testing at the expense of the
Government. A list of prequalified pozzolan sources is available
from the Director, USACE-WES, 3909 Halls Ferry Road, Vicksburg, MS
39180-6199, ATTN: CEWES-SC.]
[(3) Nonprequalified Cement Sources
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NOTE: To fill in the blank for cost of testing
excess cement, contact the Structures Laboratory,
Concrete Technology Division, WES.
**************************************************************************
Cement, if not from a prequalified source, will be sampled at the
source and stored in sealed bins pending completion of testing.
Sampling, testing, and the shipping inspection from the point of
sampling, when the point is other than at the site of the work,
will be made by or under the supervision of the Government and at
its expense. No cement shall be used until notice has been given
by the Contracting Officer that test results are satisfactory. In
the event of failure, the cement may be resampled and tested at
the request of the Contractor, at his expense. When the point of
sampling is other than at the site of the work, the fill gates of
the sampled bin and conveyances used in shipment will be sealed
under Government supervision and kept sealed until shipment from
the bin has been completed. If tested cement is rehandled at
transfer points, the extra cost of inspection shall be at the
Contractor's expense. The cost of testing cement excess to
project requirements shall also be at the expense of the
Contractor. The charges for testing cement at the expense of the
Contractor will be deducted from the payments due the Contractor
at a rate of [_____] dollars per ton of cement represented by the
tests.]
[(4) Nonprequalified Pozzolan Sources
Pozzolan, if not from a prequalified source, will be sampled at
the source and stored in sealed bins pending completion of certain
tests. Pozzolan will also be sampled at the site when determined
necessary. All sampling and testing will be by and at the expense
of the Government. Release for shipment and approval for use will
be based on compliance with 7-day lime-pozzolan strength
SECTION 03372
Page 13
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