Consistency of the RCC will be determined by the Government using the
modified Vebe apparatus in accordance with paragraph CONSISTENCY OF RCC.
Compression test specimens of RCC will be made and tested by the
Government. Density of the compacted RCC will be checked by the Government
as considered appropriate.
1.3.2.2
Aggregates Testing
Testing performed by the Government will not relieve the Contractor of his
responsibility for testing under paragraph TESTS AND INSPECTIONS. During
construction, aggregates will be sampled for acceptance testing as
delivered to the mixer to determine compliance with specification
provisions. The Contractor shall provide necessary facilities and labor
for the ready procurement of representative samples under Government
supervision. The Government will test such samples at its expense using
the specified COE CRD-C and ASTM methods.
1.3.2.3
Cementitious Materials
Cement or pozzolan will be sampled at the mill, shipping point, or site of
the work by the Government. A list of prequalified cement sources and
prequalified pozzolan sources is available from the Commander and Director,
U.S. Army Engineer Waterways Experiment Station (CEWES-SC-MP), 3909 Halls
Ferry Road, Vicksburg, MS 39180-6199. If tests prove that a material
which has been delivered is unsatisfactory, it shall be promptly removed
from the site of the work. Cementitious materials that have not been used
within 6 months after being tested will be retested by the Government at
the expense of the Contractor when directed by the Contracting Officer.
1.3.2.4
Prequalified Cement Sources
Cement shall be delivered and used directly from a mill of a producer
designated as a prequalified source for the type of cement being used.
Samples of cement for quality-assurance testing will be taken at the
project site or cement-producing plant by the Contracting Officer for
testing at the expense of the Government. A copy of the mill tests from
the cement manufacturer shall be furnished for each lot.
1.3.2.5
Prequalified Pozzolan Sources
Pozzolan shall be delivered and used directly from a producer designated as
a prequalified source. Samples of pozzolan for check testing will be taken
at the project site by the Contracting Officer for testing at the expense
of the Government. A copy of the test results from the pozzolan
manufacturer shall be furnished for each lot.
1.3.2.6
Nonprequalified Cement Sources
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NOTE: The Contractor's expense rate for excess
testing of cement and Pozzolan by the government can
be obtained from the Structures Laboratory, U.S.
Army Engineer Waterways Experiment Station
(CEWES-SC-MP), 3909 Halls Ferry Road, Vicksburg, MS
39180-6199.
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Cement, if not from a prequalified source, will be sampled and tested by or
under the supervision of the Government and at its expense. No cement
SECTION 03701
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