proposed schedule of shipments.
When pozzolan other than fly ash is used,
it shall be from one source.
1.3.1.3
Materials for Mixture-Proportioning Studies
**************************************************************************
NOTE: Contact the Division Lab to fill in the
blanks.
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At least [_____] days in advance of the time when placing of concrete is
expected to begin, samples of representative materials proposed for this
project and meeting all the requirements of this specification shall be
delivered to [_____] by the Contractor at his expense. Samples of
aggregates shall be taken under the supervision of the Contracting Officer
in accordance with COE CRD-C 100, accompanied by test reports indicating
conformance with grading and quality requirements hereinafter specified.
Samples of materials other than aggregates shall be representative of those
proposed for the project and shall be submitted accompanied by
manufacturer's test reports indicating compliance with applicable specified
requirements. Quantities of materials required shall be as follows:
MATERIAL
QUANTITY
[75 mm nominal maximum size coarse aggregate
[_____]
kg]
37.5 mm nominal maximum size coarse aggregate
[_____]
kg
19 mm nominal maximum size coarse aggregate
[_____]
kg
Fine aggregate
[_____]
kg
Cement
[_____]
kg
Pozzolans
[_____]
cu meters
Admixtures (each)
[_____]
L
MATERIAL
QUANTITY
[3 in. nominal maximum size coarse aggregate
[_____]
pounds]
1-1/2 in. nominal maximum size coarse aggregate
[_____]
pounds
3/4 in. nominal maximum size coarse aggregate
[_____]
pounds
Fine aggregate
[_____]
pounds
Cement
[_____]
pounds
Pozzolans
[_____]
cu feet
Admixtures (each)
[_____]
gallons
Mixture-proportioning studies will be made by the Government at its expense.
1.3.2
Testing During Construction by the Government
1.3.2.1
General
The Government will sample and test cementitious materials, admixtures,
aggregates, and concrete during construction as considered appropriate to
determine compliance with the specifications. The Contractor shall provide
facilities and labor as may be necessary for procurement of representative
test samples. Samples of aggregates will be obtained at the point of
batching in accordance with COE CRD-C 100. Slump and air content of
conventional concrete will be determined in accordance with ASTM C 143/C
143M and ASTM C 231, respectively, except the point of sampling will be as
specified in paragraph TESTS AND INSPECTIONS. Compression test specimens
of conventional concrete will be made and laboratory cured in accordance
with ASTM C 31/C 31M and will be tested in accordance with ASTM C 39/C 39M.
SECTION 03701
Page 13
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