2.2
TESTS, INSPECTIONS, AND VERIFICATIONS
The Contractor shall have material tests required by applicable standards
and specified performed by an approved laboratory and certified to
demonstrate that the materials are in conformance with the specifications.
Tests, inspections, and verifications shall be performed and certified at
the Contractor's expense.
2.2.1
Reinforcement Steel Tests
Mechanical testing of steel shall be in accordance with ASTM A 370 except
as otherwise specified or required by the material specifications.
Tension tests shall be performed on full cross-section specimens using a
gage length that spans the extremities of specimens with welds or sleeves
included. Chemical analyses of steel heats shall show the percentages of
carbon, phosphorous, manganese, sulphur and silicon present in the steel.
2.2.2
Qualification of Steel Bar Butt-Splicers
Qualification of steel bar butt-splicers shall be certified to have
satisfactorily completed a course of instruction in the proposed method of
butt-splicing or have satisfactorily performed such work within the
preceding year.
2.2.3
Qualification of Butt-Splicing Procedure
As a condition of approval of the butt-splicing procedure, the Contractor,
in the presence of the Contracting Officer, shall make three test
butt-splices of steel bars of each size to be spliced using the proposed
butt-splicing method. These test butt-splices and unspliced bars of the
same size shall be tension tested to destruction with stress-strain curves
plotted for each test. Test results must show that the butt-splices meet
the specified strength and deformation requirements in order for the
splicing procedure to be approved.
2.2.4
Radiographic Examination of Welds
Radiographic examination of welds shall be in accordance with ASTM E 94 and
shall be performed and evaluated by an approved testing agency adequately
equipped to perform such services. Radiographs of welds and evaluations of
the radiographs submitted for approval shall become the property of the
Government.
PART 3
EXECUTION
3.1
FABRICATION AND PLACEMENT
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NOTE: Details of reinforcement which are not in
accordance with ACI SP-66 or ACI 318M/318RM and ACI
318/318R must be indicated.
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Reinforcement steel and accessories shall be fabricated and placed as
specified and shown and approved shop drawings. Fabrication and placement
details of steel and accessories not specified or shown shall be in
accordance with ACI SP-66 and ACI 318M/318RM ACI 318/318R or as directed.
Steel shall be fabricated to shapes and dimensions shown, placed where
indicated within specified tolerances and adequately supported during
SECTION 03201
Page 10
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