ML20090L736
| ML20090L736 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 05/06/1980 |
| From: | BECHTEL GROUP, INC. |
| To: | |
| Shared Package | |
| ML17198A223 | List:
|
| References | |
| CON-BOX-04, CON-BOX-4, FOIA-84-96 7220-C-208(Q), NUDOCS 8405260040 | |
| Download: ML20090L736 (42) | |
Text
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Bechtel Associates Professional Corporation
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TECHNICAL SPECIFICATION I[
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FOR
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SUBCONTRACT FOR 2 1 1980 Ie.
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MATERIALS TESTING SERVICES i
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FOR THE
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g CONSUMERS POWER COMPANY Consisting of:
fa MIDLAND PLANT i(
1.
Technical Specification E.
MIDLAND, MICHIGAN 2.
Appendixes A through q j
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MATERIAL TESTING SERVICES
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CONSUMERS POWER COMPANY l
MIDLAND PLANT, UNITS 1 & 2 S ecification P
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-MIDLAND, MICHIGAN 7220-C-208(Q) r i
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Spscificaticn 7220-C-208 Revision 18 TABLE OF CONTENTS TECHNICAL SPECIFICATION FOR SUBCONTRACT FOR MATERIALS TESTING SERVICES FOR THE CONSUMERS POWER COMPANY MIDLAND PLANT MIDLAND, MICHIGAN SECTION TITLE PAGE 1.0 WORK INCLUDED 0
2.0 RELATED WORK NOT INCLUDED 0
3.0 ABBREVIATIONS 0
4.0 CODES AND STANDARDS 0
5.0 JOBSITE LABORATORT 0
6.0 TESTING AND CERTIFICATION OF CONCRETE MATERIALS 0
7.0 INSPECTION AND TESTING O.F CONCRETE O
8.0-TESTING OF REINFORCING STEEL AND
~
MECHANICAL SPLICES 0
1 9.0 TESTING OF SUBGRADE, EMBANKMENT AND l
STRUCTURAL BACKFILL 0
10.0 TESTING OF PRESTRESSING SHEATHING FILLER MATERIAL 0
11.0 MONITORING OF FINES 1
2 12.0 REPORTS 0
13.0 NUMBER OF TECHNICIANS AND INSPECTORS 0-14.0 QUALITY ASSURANCE 1
15.0 MEASUREMENT AND PAYMENT 2-111
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Specification 7220-C-208 Revision 19 APPENDIXES A.
TECHNICAL SPECIFICATIONS 7220-C-230, LATEST REVISION, SUBCONTRACT FOR FROVIDING ONSITE BATCH PLANT AND FURNISHING CONCRETE.
B.
TECHNICAL SPECIFICATIONS 7220-C-39, LATEST REVISION, PURCHASE OF REINFORCING STEEL.
C.
TECHNICAL EPECIFICATIONS 7220-C-255, LATEST REVISION, PURCHASE OF 14ATERIALS AND DEVICES FOR MECHANICAL SPLICING OF REINFORCING BARS.
D.
TECHNICAL SPECIFICATIONS 7220-C-210, LATEST REVISION, SUBCONTRACT FOR EARTHWORK.
E.
ATTACHMENT A, TEST REPORT FORMS F.
Deleted i
G.
Deleted H.
Deleted I.
Deleted J.
Deleted K.
TECHNICAL SPECIFICATION 7220-C-211, LATEST REVISION, STRUCTURAL BACKFILL.
L.
TECHNICAL SPECIFICATION 7220-A-13, LATEST REVISION, SUBCONTRACT FOR CONCRETE UNIT MASONRY.
M.
TECHNICAL SPECIFICATION 7220-C-49, LATEST REVISION, TENDON SHEATHING FILLER MATERIAL
]
N.
TECHNICAL SPECIFICATION 7220-A-14, LATEST REVISION, FIELD PURCHASE AND INSTALLATION OF CONCRETE UNIT MASONRY I
l P.
QUALITY ASSURANCE REQUIREMENTS FOR Q-LISTED ITEMS AND WORK.
l Q.
TECHNICAL SPECIFICATION 7220-C-88(Q), LATEST REVISION, j
SUBCONTRACT FOR AREA DEWATERING SYSTEM i
I iv 4
. ~. -.. -. -. -. _,
Specification 7220-C-208 Revision 15 TECHNICAL SPECIFICATIONS FOR SUBCONTRACT FOR MATERIALS TESTING SERVICES l
1.0 WORK INCLUDED i
The work includes the furnishing of a field laboratory and providing materials testing services under the Contractor's direction as follows:
1.1 Renovating existing laboratory buildings, and/or constructing additional laboratory buildings.
1.2 Furnishing, maintaining, and operating on the jobsite a field laboratory complete with equipment and accessories necessary, including curing facilities, to perform tests on concrete materials, concrete, and soils.
1.3 Furnishing experienced personnel, including inspectors and technicians familiar with mass concrete construction and soils technology, to perform sampling, inspecting and testing.
1.4 Assistance as required in the design and adjustment of concrete mixes.
1.5 Testing of concrete materials and concrete samples.
1.6 Testing reinforcing steel samples and mechanical splices.
i 1.7 Performing various tests on embankment, fills, and structural backfill.
l 1.8 Packaging and shipping any samples requiring off-site testing 1.9 Dismantling and removing from jobsite all l
laboratory building, equipment and accessories at completion of the work.
1.10 Testing of prestressing sheathing filler material.
l 1
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Specification 7220-C-208 Revision 18 l
11 Testing of masonry group and mortar and masonry units.
j 1
12 Testing of dewatering system to determine amount of fines pumped.
2.0 RELATED WORK NOT INCLUDED 2.1 Inspecting form work.
2.2 Inspecting reinforcing steel and concrete placement.
2.3 Welding procedure and performance qualification.
2.4 Checking of lines and grades.
2.5 Batch plant inspection 3.0 ABBREVIATIONS AASHO-American Association of State Highway Officials ACI---American Concrete Institute i
APHA--American Public Health Association ASTM--American Society for Testing and Materials 4
ASME--American Society of Mechanical Engineers AWS---American Welding Society J
USBR--United States Bureau of Reclamation 4.0 CODES AND STANDARDS Not withstanding the provisions of Article 8 of Exhibit A, General Terms and Conditions, and unless otherwise specified or shown, materials, sampling, inspection, and testing procedures shall conform to the following codes and standards to the extent indicated by references herein.
The date of issue (or revisicn) indicated shall apply.
l AASHO T26-70 Standard Method of Test for Quality of Water to be Used in concrete.
ACI SP-2, 1967-Manual of Concrete Inspection.
ACI 211.1-70 Recommended Practice for Selecting j
Proportions for Normal Weight Concrete.
ACI 214-65 Compression Test Evaluation.
ACI 301-72 Specifications for Structural Concrete for Buildings.
Chapters 3, 7, 16, 17, and 18.4.
I 2
W
o Specification 7220-C-208 Revision 18 ACI 311-64 Recommended Practice for Concrete Inspection.
ACI-318-71 Building Code Requirements for Reinforced Concrete.
ACI 614-59(304)
Recommended Practice for Measuring, Mixing & Placing Concrete.
i APHA 428 Test for Sulfide Ion in Water ASME Boiler and Pressure Vessel Code,Section IX, 1971 and Addenda of Summer 1971, Winter 1971, and Summer 1972.
ASTM A 370-72 Standard Methods and Definitions for i
Mechanical Testing of Steel Products.
ASTM A 615-68 Standard Specification for Deformed Billet-Steel Bars for Concrete Reinforcement.
ASTM A 615-72 Standard Specification for Deformed and Plain Billet - Steel Bars for Concrete Reinforcement.
ASTM C 31-69 Standard Method of Making and curing 1
Concrete Compressive and Flexural Strength Test Specimens in the Field.
4 ASTM C 33-71a Standard Specification for Concrete Aggregates.
ASTM C 39-71 Standard Method for Test for Compressive Strength of cylindrical Concrete Specimens.
ASTM C 40-66 Standard Method of. Test for Organic Impurities in Sands for concrete.
ASTM C 70-73 Standard Test Method for Surface Moisture in Fine Aggregate ASTM C 87-69 Standard Method of Test for Effect of organic Impurities in Fine Aggregate on Strength of Mortar.
i ASTM C 88-71a Standard Method of Test for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sul. fate.
i ASTM C 109-75 Standard Method of Test for Compressive Strength of Hydraulic Cement Mortars 3
I
Specification 7220-C-208 Revision 18 ASTM C 117-69 Standard Method of Test for Materials Finer than No. 200 Sieve in Mineral Aggregates by Washing.
ASTM C 123-69 Standard Test Method for Lightweight Pieces in Aggregate ASTM C 127-68 Standard Method of Test for Specific Gravity and Absorption of Coarse Aggregate.
1 ASTM C 128-68 Standard Method of Test for Specific s
j Gravity and Absorption of Fine Aggregate.
ASTM C 131-69 Standard Method of Test for Resistance to Abrasion by Use of the Los Angeles Machine.
ASTM C 136-71 Standard Method of Test for Seive or Screen Analysis of Fine and Coarse Aggregates.
l ASTM C 138-74 Standard Method of Test for Unit Weight, and Air Content (Gravimetric) of Concrete I
ASTM C 140-75 Sampling and Testing Concrete Masonry Units ASTM C 142-71 Standard Method of Test for Clay 1
Lumps and Friable Particles in Aggregates.
I ASTM C 143-74 Slump of Portland Cement Concrete.
ASTM C 150-72(78A) Standard Specification for Portland Cement.
\\
ASTM C 151-74 Standard Method of Test for Autoclave Expansion of Portland Cement ASTM C 172-71 Standard Method of Sampling Fresh I
concrete.
ASTM C 183-76 Standard Methods of sampling Hydraulic Cement 4
l ASTM C 191-74 Standard Method of Test for Time of Setting of Hydraulic Cement by I
Vicant Needle ASTM C 227-71 Potential Alkali Reactivity of Cement-Aggregate Combinations (Mortar-Bar Method) l
Specification 7220-C-208 Revision 18 ASTM C 231-75 Standard Method of Test for Air Content of Freshly Mixed concrete by the Pressure Method ASTM C 235-68 Scratch Hardness of Coarse Aggregate Particles i
ASTM C 260-69 Standard Specification for Air-Entraining Admixture for concrete.
Section 1, 2, 3.2, 8.3 and_9.
ASTM C 289-71 Standard Method of Test for Potential Reactivity of Aggregates (Chemical
}
M&M)
ASTM C 295-65 Standard Recommended Practice for il Petrographic Examination of i
Aggregates for Concrete i
i ASTM C 311-68 Standard Methods of sampling and Testing Fly Ash for Use as an Admixture in Portland Cement Concrete i
ASTM C 396-76 Test for Compressive Strength of Chemically i
Setting Silicate and Silica Chemical-j Resistant Mortars l
l ASTM C 494-71 Standard Specification for Chemical
]
Admixtures for Concrete.
Sections 1, 2, 3, 4.1, 4.3, 6, 7 and 9.3 i
ASTM C 567-71 Standard Method of Test for Unit Weight i
of Structural Lightweight concrete ASTM C 566-67(72)
Standard Method of Test for Total j
Moisture Content of Aggregate by j
Drying i
ASTM C 618-72 Standard Specification for Fly Ash and Raw or Calcined Natural Pozzolans for Use in j
Portland Cement Corcrete ASTM D 422-63 Standard Method for Particle-Size Analysis of Soils i
ASTM D 423-66 Standard Method of Test for Liquid Limit of Soils ASTM D 424-59 Standard Method of Test for Plastic Limit
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(1971) and Plasticity Index of Soils ASTM D 512-67 Standard Method of Test for Chloride Ion in Water and Waste Water p
_=-
Specification 7220-C-208 Revision 18 ASTM D 854-58 Standard Method of Test for Specific (1972)
Gravity of Soils ASTM D 992-71 Test for Nitrate Ion in Water ASTM D 1556-64 Standard Method of Test for Density of l
Soil in Place by the Sand Cone Method ASTM D 1557-70 Standard Methods of Test for Moisture-Density Relations of Soils Using 10-lb.
Rammer and 18-in. Drop 2
i ASTM D 1883-67 Standard Method of Test for Bearing Ratio of Laboratory-Compacted Soils ASTM D 2049-69 Standard Method of Test for Relative i
Density of Cohesionless Soils.
ASTM D 2166-66 Standard Methods of Test for Unconfined (1972)
Compressive Strength of Cohesive Soil ASTM D 2216-71 Standard Method of Laboratory Determination of Moisture Content of Soil 4
i ASTM D 2434-68 Standard Method of Test for Permeability j
of Granular Soils (Constant. Head) i ASTM D 2435-70 Standard Method of Test for One-Dimensional Consolidation of Properties of Soils ASTM D 2487-69 Standard Method for Classification of Soils for Engineering Purposes ASTM D 2488-69 Recommended Practice for Description of Soils (Visual Manual Procedure)
I ASTM D 3017-72 Moisture content of soil and Soil-Aggregate in Place,by Nuclear Methods 1
CRD C 79-77 Method of Flow Tests for Flow at Grout Mixtures (Flow Cone Method).
CRD C-119-53 US Army, Corps of Engineers, Methods of Test for Flat and Elongated Particles in Coarse Aggregate CRD C-588-78A US W, Corps of Engineers, i
Specification for Non-Shrink Grout Calif. Division Method of Test for Sand Equivalent of Highways Test Method No. 217 I
Specification 7220-C-208 Revision 19 19 Soil-Testing for Engineers by T. William Lambe UBC Standard Uniform Building Code Standards No. 24-22, Field Tests for Grout and Mortar 1976 USBR E-24 Unites States Bureau of Reclamation Field Density Tests for Sands, Gravel, and Fine Materials USBR DES E-11 United States Bureau of Reclamation a
Zero-Air Voids Curve, Paragraph 7 ANSI N45.2.5 American National Standard, Supplementary 1974 Quality Assurance Requirements for Installation, Inspection, and Testing of Structural Concrete and Structural Steel During the Construction Phase of Nuclear Power Plants 5.0 JOBSITE LABORATORY 5.1 Laboratory Building The Contractor will make available to the subcontractor, for the duration of the job and at no charge, an existing building formerly used for materials testing work.
If the building is used, the Subcontractor shall renovate the building and any equipment therein, to meet the requirements of this specification, provided that the Contractor shall approve such work before renovation commences.
Remove.1 of this building at the conclusion of these testing work is not required.
The Subcontractor shall also furnish and construct any additional laboratory buildings (complete with the building foundations, slabs, equipment supports, etc.) as required to meet the work load, or to be used as an alternate to the existing building; such buildings shall be approved by the Contractor before construction.
At the conclusion of the project, the Subcontractor furnished buildings, including all foundations both for the building and the equipment, chall be removed by the Subcontractor.
The location of the building (s) shall be es shown on Bechtel sketch SK-C-312.
7 gg
Sp2cificaticn 7220-C-208 Revision 17 5.2 Laboratory Equipment i
The Subcontractor shall equip the laboratory with the necessary equipment to perform the onsite testing specified.
The major items of equipment shall include, but not be limited to, the following:
l 5.2.1 300,000 pound automatic portable compression testing machine.
i t
i 5.2.2 Temperature controlled cylinder curing tanks or fog room including thermometers and humidity controls.
(Capacity of 800 cylinders stored at one time.)
5.2.3 Fine and coarse aggregate sieves for performing gradation of aggregates including equipment required for grain i
size distribution analysis by hydrometer.
5.2.4 Concrete air meter, slump cones, and i
cylinder molds.
5.2.5 Sieve shaker for both fine and coarse i
aggregate with nest of sieves in accordance with ASTM-D-422.
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5.2.6 Gram scale for determining finenUss j
modulus of sand and moisture tests.
l 5.2.7 Pond scale for determining gradation of coarse aggregate.
I 5.2.8 Chapman flasks for determining moisture j
of sand and specific gravity.
5.2.9 All other appurtenant epipment required for concrete field control.
I 5.2.10 All equipment required for the soil compaction tests in accordance with ASTM-D-1557 in the field laboratory.
5.2.11 Vehicle for laboratory personnel to obtain and pick up samples.
1 8
I
Specification 7220-C-208 Revision 17
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i 5.2.12 A backup inventory of equipment susceptible to damage shall be provided, including but not limited to:
air meters, scales, flasks, and slump cone equipment.
5.2.13 All equipment required for relative density of sand in accordance with ASTM-D-2049.
5.2.14 All equipment necessary for performing Atterberg Limit test in accordance with ASTM-D-423 and ASTM-D-424.
5.2.15 All equipment for CBR tests in accordance with ASTM-D-1883.
5.2.16 All equipment necessary for unconfined compression test in so:1 ASTM-D-2166.
5.3 Requirements for Equipment The laboratory equipment furnished by the subcontractor shall be subject to approval by the contractor.
5.4 Laboratory operations The subcontractor shall assume all responsibility to provide necessary utilities, including a telephone, at the laboratory buildings.
Report forms shall be provided by the subcontractor unless specifically directed otherwise by the Contractor.
Test materials, including concrete cylinder molds, and all packing and crating materials for off-site testing shall be furnished by the subcontractor.
6.0 TESTING AND CERTIFICATION OF CONCRETE MATERIALS All tests performed shall be documented and the reports submitted to the Contractor.
6.1 Cement, Possolan, Air Entraining Admixture and Water Reducing Admixture.
4.1.1 Prior to commencing of any concrete work, cement from the source selected by the concrete supplier shall be given an initial Acceptance Test consisting of a complete chemical and physical analysis by the subcontractor in 9
i Specification 7220-C-208 Revision 17 accordance with Paragraph 7 of ASTM C 150 with the fineness to be l
determined by ASTM C 115.
1 In addition, as directed by the Contractor, the Subcontractor shall perform an acceptance test consisting of a complete chemical and physical analysis on a grab sample weighing,
)
approximately 15 pounds, taken from a new cement put into the silos at tha i
mill.
i j
Also, for every 1200 tons of cement i
used, and at other times as directed by the contractor, the Subcontractor shall obtain, from cement delivered to the jobsite, grab samples weighing I
approximately 15 pounds for making a User's Test consisting of a ccuplete chemical and physical analysis, as j
specified in Table 1.
The subcontractor shall check that cement delivered to the site does not exceed a temperature of 150*F., and shall also review for completeness the l
mill test reports received with each load as delivered to the Batch Plant.
l 6.1.2 Pozzolan shall be sampled and tested per Table 1 for each 200 tons received.
i Tests for cement alkalies are not i
required.
I 6.1.3 Deleted 4
i 6.1.4 Deleted i
6.1.5 Upon selection and approval of the air j
ontraining admixture and the water reducing admixture, the manufacturer i
I shall furnish certification for every I
delive n stating that the materials originally approved have not been changed.
The subcontractor shall review the certifications supplied by i
the, concrete supplier at the same time.
i The water reducing and air entraining 1
admixtures are delivered to the Batch l
Plant.
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i SpCcification 7220-C-208 l
Revision 17 6.2 Aggregate Accep tability Tests.
4 Aggregate samples submitted by the concrete supplier from hir. proposed source shall be j
tested by the Subcontractor.
J.ggregate shall conform to ASTM C 33 and Technical specification 7220-C-230.
4 l
The following testa shall be performed:
)
i Test ASTM Designation L.A. Rattler C-131 j
Friable Particles C-142 Material Finer than No. 200 Sieve C-117 Scratch Hardvsss of Coarse,
l Aggregate Particles C-235 Organic Impurities in Mortar C--87 Organic Impdrlties in Concrete C--40 Potential Reactivity of Aggregates (Chemical)-
C-289 Potential Reactivity C-227 (If necessary (Mortar Bar) after C-289) j Soundness of Aggregates C-~88 Specific Gravity and Absorption-Coarse Aggregate C-127 specific G2:av3ty and Absorption-Fine Agr,Tegate C-128 l
Petrographict Examination C-295 l.
Sieve Analysis C-136 6.3 Water and Ice for Mixing At the beginning of the job, the subcontractor j
shall test the mixing water in accordance with AASHO T-26.
The tests shall include
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determination of the pH range, and the amounts of chlorides, sulphates, iron, and organic l
matter.
Water and ice for mixing concrete i
shall be in accordance with specification 1
7220-C-230 and shall be tested in accordance
!i with Table 1.
i 6.4 Mix Design -
Based on the concrete supplier's proposed cement, aggregate, and additives,-the subcontractor shall assist in the design and adjustment of the design mixes in accordance i
with-ACI Standard 211.1, the repirements of the Contractor's Technical Specifications No. 7220-C-230, and as directed by the Contractor.
No gap graded concrete shall be 4
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Specification 7220-C-208 Revision 17 allowed.
Concrete mixes shall contain all aggregate size groups up to and including the maximum size.to be used in the concrete.
4 1
Representatives from both the contractor's construction and engineering staff shall be present during the design program to accertain workability and placing characteristics.
The contractor shall approve the mix designs before production of concrete is allowed to i
proceed.
6.5 Non-Shrink Grout i
Each non-shrink grout test batch shall be proportioned and mixed in accordance with the manufacturer's instructions.
Compressive i
stra.igth and shrinkage tests shall be l
performed as specified in Table 1, and shall i
be made for each lot of non-shrink grout received.
Ho'rever, Saverieson #72 grout need not be tested for shrinkage.
The word " lot" for non-shrink grout shall be equal to each l
shipment received or 50,000 pounds, whichever
]
is smaller.
Requirements for minim 2m compressive strength are as follows (unless noted otherwise):
6.5.1 At 3 days:
3000 psi 6.5.2 At 7 days:
5000 psi i
6.5.3 At or before 28 days:
6000 psi (for j
6000 psi applications only) 7.0 INSPECTION AND TESTING OF CONCRETE 1
7.1 General 1
1 j
Inspection of concrete shall be performed in j
accordance with the ACI Manual of Concrete Inspection, the " Recommended Practice for i
1 concrete Inspection" (ACI Standard 311-64) and as specified herein.
7.2 Inspection The measuring, batching, and mixing of all concrete shall be inspected by the contractor's Batch Plant Inspector.
i 12 gb
5 Specification 7220-C-208 Revision 17 i
7.2.1 Deleted i
j 7.2.2 Duties of the Subcontractor The following Batch Plant duties shall be performed by the Subcontractor.
l Reports of tests shall be submitted to the contractor.
a.
Cast, cure, and test concrete cylinders from samples obtained from discharge of stationary mixer at Batch Plant or, when applicable, from the discharge i
chute of the truck mixer.
On Occasion, the Contractor will l
, require concrete samples at point i
of placement to ascertain slump, air content, temperature, and l
strength.
b.
Any associated duties as directed j
by the contractor.
i i
c.
Concrete specimens shall be prepared from the mixers used in the work and tested to determine i
the adequacy of control of the materials entering into the 1
concrete mix.
All materials shall be tested during the progress of 1
the work in accordance with the ACI Manual of Concrete Inspection 3
and as specified herein.
j i
i
{
7.3 In-Process Testing l
The subcontractor shall obtain samples and
{
conduct tests at the frequency specified in 3
Table 1 and as directed by the contractor.
Reports of these tests shall be submitted to 4
the contractor.
After the nonconformance, the next lot or lots will be tested until the i
nonconforming item has been corrected.
7.3.1 Aggregate Testing 1
a.
The following in-process tests l
shall be performed:
1.
gradation l
2.
moisture content 13 q
t 1
Specification 7220-c-208 i
Revision 17 i
3.
material finer than no. 200 sieve 4.
organic impurities 5.
friable particles 6.
lightweight pieces 7.
soft fragments 4
8.
Los Angeles abrasion 1
l 9.
flat and elongated particles i
10.
potential reactivity 11.
soundness i
b.
Samples shall be taken as aggegate drops from the bins or weigh-hoppers in the Batch Plant, i
from conveyor belts feeding the j
wei h hoppers, or from other 9
designated locations, as directed by the contractor.
c.
Gradation J
i 1.
One sand sample and one j
coarse aggregate sample shall be taken from each nominal i
size group used, for gradation.
Required Tests - When the required gradation tests are i
performed and a test fails by R% or less on any one sieve l.
and the moving average remains within specification, the aggregate will be accepted and no retests will be taken.
If the test fails i
by more than 2% on any one i
sieve, two ratests wi'.,1 be taken regardless of the moving average.
4 Ratests - If both ratests pass, the aggregate will be accepted or I
1
t I
Specification 7220-C-208 1
Revision 17 4
- If either or both retests fail by 2% or less on any one sieve
.and the moving avera9e is within specification, the aggregate will be i
accepted.
- If either retest fails by more than 2% on any one sieve the material it represents shall be j
rejected, and the procedure outlined for
" Rep ired Tests" will be j
re-initiated.
l Moving Average - The ten most recent tests (required tests and ratests) will be used in calculating the moving l
average.
If the moving average goes out of the specification range, the i
material shall be rejected as specified above, and an evaluation of the test j
results will be made by the 4
contractor's field personnel to determine what corrective i
action will be taken.
Evaluation will be made using results of the " Required Tests, and " Retests" specified above, with incoming aggregate tests (section 7.3.1.4) used for J
comparison.
4 1
2.
In the determination of material finer than No. 200 i
sieve, if the test fails to i
meet the specification j
requirements, two retests i
shall be taken.
If both ratests pass, the material represented shall be accepted.
If either or both ratests fail, the material represented shall be rejected.
g@
15
Specification 7220-C-208 Revision 17 d.
Flat and Elongated Particles A ratio of three to one shall be 1
employed in determining the number of flat and elongated particles.
Maximum allowable flat and elongated particles shall not exceed 15% unless approved by the contractor.
e.
Additional Aggregate Testing As directed by the Contractor, concrete aggregates (coarse and fine), when delivered to the on-stte Batch Plant, shall be tested in accordance with ASTM C-136 for gradation as specified in Specification 7220-C-230, Section 7.2.2.
In addition, as directed by the Contractor, a wash test, ASTM C-ll7, shall be performed on aggregate delivered.
If an aggregate sample fails to l
meet these requirements, the Subcontractor shall immediately report the failure to the Contractor.
The results of these tests shall be used as a " leading indicator" of changes in aggregate gradation i
and as described in section 7.3.1.2.
f.
Moisture content 1
The free moisture content of aggregates shall be determined in accordance with ASTM C-566 once daily during production for proportioning the amount of mixing water.
To account for moisture changes in the fine aggregate,
. ASTM C-70 may be used for quick adjustments to the amount of mixing water in the concrete mix.
1 9,
.. _.... _ _. _ ~ _.
specification 7220-C-208 j.
Revision 17 7.3.2 Compressive Strength cylinders
)
4 i
compressive strength cylinders shall be cast from representative samples taken i
4 from the discharge of the Batch Plant stationary mina.7 or, when
- licable, from the chute of the truc iners.
}
For y ses of correlation and stren verification, when concrete i
receives its final mix from a central I
batch plant, additional compressive
~
strength cylinders shall be cast from samples taken at the tratsport discharge (pump line discharge, or, if no pump is used, chute of truck) of the same batch from which a sample was taken at the stationary mixer.
similar11y, when concrete receives its final mix from a truck mixer, l
additional c rossive strength I
cylinders shal be cast from samples l
taken at the transport discharge (i.e.,
j i
ump line discharge) of the same batch rom which a sample was taken from the i
chute of the truck mixer.
After i
correlation has been established, correlation cylinders shall be 4
{
continued to verify the correlation at I
a frequency not to exceed once every 300 cu d or once a week for each six t
used du ing production.
Cylinder sampling procedures shall be in i
accordance with ASTM C-172.
Slump, air j
content, temperature and unit weight of I
the concrete shall be recorded when
)' '.
cylinders are being cast.
All linders shall be made, cured, and tes in accordance with ASTM C-31 and i
C-39, except field cylinders may be i
I cured adjacent to the concrete placement in insulated boxes prior to j
stripping.
i i
compressive strength and slump shall be as specified in Technical i
specification 7220-C-230.
l The number, frequency and test age of sylinders shall be as specified in Table 1.
)
4
specification 7220-C-204
. Revision 17 All concrete cylinders shall be marked and stored in the curing room or tank until the designated date for testing.
Cause for concrete rejection shall in in accordance with Paragraph 4.3.3, ACI l
standard 318.
t 3
7.3.3 Grout Testing l
Grout mixes with a higher cement-sand ratio than the concrete with which it is used that are approved by the contractor shall be tested daily during production to the requirements of j
MTN C-109.
i compressive stren M shall be as j
specified in specification 7220-C-230.
j 7.3.4 slump, Air content and Temperature i
i The specified limits for slump, air content and placing temperatures are to be at the point of placement.
- Slump, t
air content and temperature shall be measured and recorded at the frequency and method specified in.'able 1.
The t
sampling point for final acceptance of i
air content, slw and temperature is i
at the truck discharge except for i
concrete conveyed by pump.
The c
location of testing for pumped concrete shall be as follows:
l
)
a.
If a correlation program is developed in accordance with section 7.4; si g, air content and w rature shall be recorded, at the batch plant stationary mixer wh6n cylinders are cast and 1
4 at the truck discharge at the
]
frequency specified in Table 1.
Each batch shall visually be checked by the subcontractor at the truck discharge for slump consistency.
Any concrete in i
question shall be tested for i
compliance with specification requirements.
Ad11tional testing may be required at the point of placement as directed by the l
Contractor.
Specification 7220-C-208 I
Revision 17 b.
If no correlation program is developed in accordance with section 7.4, slump, air content, and temperature shall be measured at the match Plant Stationary mixer (or at truck discharge for a i
dry six batch plant) when compressive strength cylinders are being cast and at the point of i
final placement at the frequency t
specified in Table 1.
Each batch I
shall be visually checked by the i
j subcontractor at the truck discharge for slump consistency.
Any concrete in questions shall be tested for compliance with cification requirements.
itional testing may be required at the truck discharge as directed t
by the Contractor.
7.3.5 Unit Weight I
I Unit weight of the concrete shall be measured and recorded in accordance
)
with Table 1.
j
)
7.4 Correlation I
i A correlation program may be developed by the l
j Contractor for determining and controlling l
l slump, air content, and temperature changes i
between the batch plant stationary miner or, i
when applicable, the truck mixer discharge and i
the final point of placement in accordance I
with ACI 304.
1 The correlation program description shall contain the following as a minimum.
1 i
1 7.4.1 frequency and locations of testing 7.4.2 sethod of establishing correlation from test resulta j
7.4.3 compensation for weather changes or methods of' conveying concrete.
f I
L 19 hg
specification 7220-C-208 Revision 17 7.5 Test Results 7.5.1 statistical Analysis standard deviation data shall be developed in accord &nce with ACI 214 and shall be submitted for evaluation as directed by the contractor.
7.5.2 Materials Materials which fall to meet the rguirements of the tests shall be rejected by the Contractor.
The subcontractor shall immediately report any deviations from these specifications to the Contractor.
7.5.3 Rejection If the slump, air content, or temperature at the point of placement is found to be or is estimated by correlation to be greater or less than the limits specified, a shook test shall be made.
In the event of a failure, the contractor shall be immediately notified and the failing concrete shall be rejected by the contractor.
7.6 Testing of Masonry Concrete masonry units and masonry grout and mortar shall be as specified in specification t
7220-A-13.
The following onsite field and laboratory tests shall be performed:
I 7.6.1 Concrete masonry units shall be sampled and tested in accordance with ASTM C 140.
7.4.2 Masonry grout and mortar shall be field tested in assordance with USC standard No. 24-22 eseept that the following physical requirements shall applys a.,
At least one test sagte of the mortar and grout shall be taken every third suesessive working day beginning with the first day of masonry work.
p
l l
l Specification 7220-C-204 Revision 17 4
1 b.
Additional test samples shall be 1
taken whenever any change in j
i materials or job condition occurs, 1
whenever such tests are necessary to determine the quality of the l
material.
1 i
i s.
Curing of test specimens by
}
tamersion in saturated line water j
may be used in lieu of a fog room.
l speciments shall not be esposed to l
dripping or running water.
l 8.0 TESTING OF REINFORCING STEEL AND NECNANICAL SPLICES l
l 4.1 Reinforcing steel j
i Reinforcing steel shall conform to ASTN A 415, i
~
Grade 60.
The tensile and bend tests shall be la accordance with ASTN A415.
Bar sises 14 and 18 shall be tested to the requirements of ASTN A ell, supplemental requirement S-1 with i
j full sised test speciments for bare shipped i
after Na 13, 1977.
Bar numbers 11 14 i
and 18 s 11haveaminimumelongatlono,f7%
i in an 8 inch specimen.
At least one full diameter specimen free each bar eine shall be tested in accordance with Table 1.
The Subcontractor shall make the necessary l
arrangements for the offsite testing.
Reports i
shall be submitted to the contractor trithin j
7 days after the tests samples are furnished, with copies forwarded concurrently to e
]
Censumers Power Company personnel.
Test j
s imens that have been tested and are 4
ted shall be stee iled by the j
suboentreeter for dispose by the contractor.
As an alternate to offsite testinglag of the j
the Contreeter may request ensite test i
4 i
rew.
I 4.1.1 Aseeptance standards for User's Tests i
The acceptance standards shall be in i
eenfermance with the tensile er bend test requirements of ASTN A ell and supplementary requirements 8-1.
If a i
test specimen fails to meet the tensile er bend test requirements of ASDI A 415 and supplementary requirements 5-1, heat two addittenal speoine... J.we the same i
and of the same bar sise shall be tested.
If either of the two l
- - _ -.-=__ - _
specification 7220-C-204 Revision 17 additional specimens fails to meet the i
tensile or bend test requirements, the i
material represented by the tests shall not be accepted.
t
[
I i
s i
1 i
e 32
l l
Specification 7220-C-208 Revision 17 TABLE 1 INSPECTION AND TESTING OF CONCRETE Material and Reautrement Iggt Method Test Frequency Concrete sa.spling method ASM C 172 l
Compression ASM C 31 cylinders compressive ASTM C 39 4 cylinders (1 set from strength each 100 cu yd, or a minimum of one set per day for each class of concrete.
(1, 2) slump As3 C 143 First batch produced each day and every 50 cu yd placed (1)
Air content ASTM C 231 First batch produced each day and every 50 cu yd placed (1)
Temperature First batch produced each day and every 50 cu yd placed (1)
Unit ASTM C 138 When cylinders are cast weight / yield from samples attained from the batch plant stationary mixer or, when applicable, from the discharge chute of the truck miners 1
Usout (Nonshrink)
Compressive ASTM C-109 Test each lot received strenth before use shrinkage CRD C-588 Test each lot received before use I
st f
Specification 7220-C-204 1
Revision 17 ARG(etett Gradation ASTM C 136 Daily during production l
Twice daily during production when 3/4-inch i
aggregate is crushed from 1-1/2-inch aggregate Noisture content ASTM C 564 Daily during production ASTM C 70 When needed per Section 7.3.1.5 Material finer ASTM C 117 Daily during production than No. 200 sieve Organic impurities ASTM C 40 Weekly during production Friable particles ASTM C 142 Nonthly during production Lightweight pieces ASTM C 123 Nonthly during production soft fragments ASTM C 235 Monthly during production Los Angeles ASTM C ?.31 Every 6 months abrasion Flat and elongated CRD C 119 Every 4 months Daily during production when 3/4-inch aggregate is crushed from 1-1/2-inch aggregate Fotential ASTM C 289 Every 4 months reactivity soundness ASTM C 88 Every 6 months Water and Ice Compliance with 4
specification 7220-C-230 Compressive ASTM C 109 Every 6 months strength setting time ASTM C 191 Every 6 months Soundness As1M C 151 Every 6 months Chlorides As1M D 512 Nonthly 24
Specification 7220-C-208 Revision 17 Fly Ash and Possolans Chemical and ASTM C 311 Each 200 tons (1) physical properties ASTM C 618 per ASTM C 618 Cement Standard physical ASTM C 150 Each 1200 tons and chemical pro-ASTM C-183 (1) perties Cement temperature Each load Reinforcing Steel Physical proper-ASTM A 370 One full section test ties.of full for each bar size for test specimen per each 50 tons or fraction ASTM A 615(3) thereof from each heat (3)
Lightweight Concrete (non-Q material and workmanship)
Unit weight Section 5 of First batch produced ASTM C 567 each day and every 50 cu yds thereafter (1)
Compressive strength ASTM C 39 Two cylinders (1 set) from each 100 cu yd or fraction thereof.
to be broken at 28 days (1) compressive cylinders ASTM C 31 s
s (1).Fo) testing frequency; the words "each" and "every" may be I
met by obtaining an average of one test for the specified c
^
i frequency.s (e.g.,.If the specified frequency is "every 50 cubic yard" and if the first test occurs at 6 cubic yard it is preferrable, but not necessary, that the second test occur at,or-before 56 cubic yard.
Instead, tests should aversgelout as one test for every 50 cubic yard i
.placed -for each mix used on a daily basis but not to exceed twice the specified frequency.)
For fly ash, tests.should average out as one test for every 200 tons used but not to exceed the specified frequency by e
more than one (1) truckload.
For cement, tests should average out as one test for every 1,200 tons used, but not to exceed
~ 'N the specified frequency by more than one (1) truckload.
c S
25 a
y k
i
. \\
'(.
Specification 7220-C-208 Revision 17 (2)
Compressive strength cylinders shall be tested as follows:
Concrete containing pozzolans:
2 cylinders at 28 days 2 cylinders at 90+1 days Concrete not containing pozzolans:2 cylinders at 7 days 2 cylinders at 28 days Additional cylinders may be made and tested as directed by the Contractor.
(3)
Reduced section test specimen may be used for determination of the percentage of elongation.
8.2 Mechanical Splices Samples of mechanical splices shall be taken and tested as specified in Technical Specification 7220-C-255.
Samples of the splices, including a length of reinforcing bar on each side of the splice, will be removed from the work by the Contractor for testing.
The samples shall be tested to failure and reports of the tensile strengths submitted to the Contractor within 7 days after the test l
samples are furnished.
Tensile tests shall meet the requirements apecified in Technical Specification 7220-C-39.
Arrangements for the off-site testing shall be made by the Subcontractor.
by the Subcontractor. Test specimens shall be kept 9.0 TESTING OF SUBGRADE, EMBANKMENTS, AND STRUCTURAL BACKFILL The following tests on embankments and subgrade fills and structural backfill shall be made by the Subcontractor; frequencies shall be in accordance j
with Table 9-1 attached.
9.1 On-Site Field and Laboratory Test 9.1.1 Compaction tests in accordance with ASTM Test Designation D 1557, Method D.
9.1.2 Relative density of cohesionless I
1 materials in accordance with ASTM D2049, 26 0
3 saam
t l
Specification 7220-C-208 j
Revision 19 l$
l l
9.1.3 Field Density Tests for sands and fine material in accordance with ASTM D1556, l
and on gravels with the above as modified by USBR DES E-24 as described in USBR Earth Manual.
The nuclear density devices shall not be used to determine density.
All field density tests on cohesive soils shall be checked against a zero-air-voids (ZAV) curve according to USBR DES E-11 (Paragraph 7)ty of 2.75.
based on an assumed specific gravi The density tests are acceptable when plotted to the left of the ZAV curve.
If the field density tests fall on or i
to the right of the ZAV curve, the following steps shall be followed.
a, Report the tests to the quality i
control engineer and the onsite geotechnical soils engineer.
b.
Recheck the calculations of the IO tests concerned.
If calculations 3'
are found in error, compare the corrected density tests against the ZAV curve, c.
If the corrected density tests.
Plot on or to the right of the ZAV curve, those tests shall be either rejected and different density tests shall be performed or the density tests shall be checked against the ZAV curve using the actual specific gravity of the sample.
9.1.4 Atterberg Limit Tests for Liquid and i
Plastic Limits in accordance with l
ASTM D423 and 424.
l 9.1.5 Grain Size Analysis in accordance with ASTM Designation D422,~except that the hydrometer test is not required 9.1.6 California Bearing Ratio Tests in accordance with ASTM Designation D1883 shall be made by the Subcontractor on embankment and subgrade' fills to determine the relative bearing values 27
Specification 7220-C-208 Revision 19 IS y
required for the design of asphalt concrete pavement.
9.1.7 Moisture Content:
The method of. determining moisture content at the time of density testing (i.e., point of acceptance) shall be in accordance with ASTM D 2216.
Determination of moisture content for information purposes (i.e., before and during compaction) may be made using rapid determination methods, provided procedure complies with the following.
a.
The code and/or manufacturer's instructions shall be followed.
b.
The results using rapid determination methods shall be compatible with those obtained using ASTM D 2216.
c.
Compatibility of the methods shall be determined by the onsite geotechnical soils engineer.
d.
Nuclear density devices shall not be used to determine moisture content.
a 9
O I
28 f
Sptcificatien 7220-C-208 Revision 19 19 TABLE 9-1 FREQUENCY OF TEST PROCEDURES Test Approximate Frequency Equipment Calibration Frequency to be based on Bechtel Field Inspection Manual, or, if not otherwise stated, upon manufacturer's suggested frequency; frequency for each item to be submitted by Subcontractor for Contractor's approval.
Field Densities, Moisture One per every 500 cubic yards Content of fill Compaction, Grain size, As directed by the onsite specific Gravity geotechnical soils engineer.
Atterberg Limits, Shear As requested by the Contractor.
Strength, CBR, Permea-bility, and Petrographic Zero-Air-Voids Curve Check required with each field 9
Check density test on cohesive soil A
a i
l l
29 O
.p -
I
. -.,..... _.. _ -. ~..., - _ _ _, ~.
d Specification 7220-C-208 Revision 17 9.1.8 Specific Gravity; ASTM Designation D 854.
9.1.9 Unconfiried compression shear strength tests shall be made in accordance with ASTM D2166.
9.2 Off-Site Laboratory Tests 9.2.1 Permeability shall be determined off-site in accordance with ASTM 4
Designation D2434.
9.2.2 Shear Strength Unconsolidated undrained, consolidated undrained, and consolidated drained shear strength tests shall be made in accordance with the test procedures for these types of tests given in " Soils Testing for Engineers", by T. William Lambe.
9.2.3 One Dimensional Consolidation Properties shall be made in accordance with ASTM D2435.
10.0 TESTING OF PRESTRESSING SHEATHING FILIER MATERIAL 10.1 Sampling One 4 oz. sample of filler material shall be selected from each 100 drums or each tank trunk.
If shipment contains material from more than one batch, then a sample shall be taken from each batch.
If the filler is shipped in bulk, a sample shall be taken from each shipment.
1 10.2 Test Procedure
./
The inside (bottom and sides)'of a one liter beaker shall be thoroughly coated with the sample material.
The coated beaker shall be
-filled with distilled water and placed in an s
oven at 10?? for 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
The separated water shall then be tested for the following compounds in accordance with the indicated codes and standards:
30' k
3
Specification 7220-C-208 Revision 19 9
4 Allowable Maximum Applicable Compound In Water Standard Water Soluble 2.0 ppm ASTM Designation D-512 Chlorides (Cl )
(limit of accuracy 0.5 ppm)
Water Soluble 4.0 ppm ASTM Designation D-992 Nitrates (No )
(limit of accuracy 0.5 Ppm)
Water soluble 2.0 ppm APHA Designation 428 l
Sulfides (S )
(limit of accuracy 1.0 ppm) 11.0 MONITORING OF FINES The monitoring of fines for the dewatering system as identified in Specification 7220-C-88(Q) shall be performed in accordance with the subcontractor's approved procedure.
12.0 REPORTS The results of all tests shall be submitted to the Contractor by the third day following completion of the test.
Test report forms shall be submitted to the Contractor for his approval prior to the beginning of testing, with copies forwarded concurrently to Consumers Power Company personnel.
Forms are furnished in Attachment A for guidance.
Each report shall identify the item to which it applies including the procedures or instructions followed in performing the test.
Reports shall include and identify all nonconforming conditions.
The Subcontractor shall immediately report failing tests and any deviations from the Specifications to I
the Contractor who will either reject the material or 1
evaluate it to assess its acceptability.
l 13.0 NUMBER OF TECHNICIANS AND INSPECTORS The number and class of technicians and inspectors shall be approved by the contractor.
Upon 10 calendar days notice by the Contractor, the Subcontractor shall increase or-decrease the number of technicians and inspectors as may be required by the workload.
d'
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1
- .+
'2.:
. _. - - - - ~.
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Specification 7220-C-208 Revision 18 14.0 QUALITY ASSURANCE 14.1 Within 30 days after award of the Subcontract, the Subcontractor shall submit a quality l
assurance program in accordance with Specification 7220-G-23 which will assure that all work performed by the Subcontractor conforms to these Specifications.
i 14.2 The program shall include, but not necessarily be limited to the following:
14.2.1 Procedure for calibration control of test equipment and tools.
14.2.2 Procedure for preparing and curing concrete test cylinders.
14.2.3 Procedure for identification of all test specimens taken by the Subcontractor and procedure for control of all test specimens whether furnished by the contractor or Subcontractor.
14.3 The Subcontractor shall submit a detailed resume of all personnel proposed for assignment to this testing work; no personnel shall be assigned to this work without the written approval of the Contractor.
(Resumes to be submitted with bid proposal.)
Personnel performing tests and inspections required in this specification shall be qualified in accordance with ANSI N45.2.5, Section 2.4.
14.4 The Contractor shall have free access to all work and shall have the authority to stop or reject work if the specification requirements including those for documentation, have not been fulfilled.
14.5 The Subcontractor shall furnish documentation to the contractor in accordance with Form G-321-D.
14.6 Prior to start of work, the Subcontractor shall submit the documentation that will satisfy the requirements of Form G-321-D.
Upon approval by the Contractor, the documents will be returned to the Subcontractor.
The Subcontractor shall then submit the detailed documentation in t..:cordance with the approved forms.
While in the supplier's. facilities these and other records required by applicable 32
~
Specification 7220-C-208 Revision 18 i
codes and standards which are necessary to verify activities affecting quality, shall be maintained in facilities to protect contents from possible destruction by causes such as fire, flooding,le deterioration by a tornadoes, insects, rodents, and from possib combination of extreme variations in temperature and humidity conditions.
Storage systems shall provide for the accurate retrievel of information without undue delay.
i (Compliance to ANSI N45.2.9, " Requirements for Collection, Storage, and Maintenance of Quality Assurance Records for Nuclear Power Plants" fulfills these requirements.)
Quality assurance records are those records which furnish documentary evidence of the quality of items and of activites affecting quality.
Records become quality assurance records upon issuance for use.
14.7 In creas, facilities and environments where installation, inspection and testing are performed in accordance with this specification, the housekeeping r'equirements shall be in accordance with ANSI N45.2.5, Section 2.6.
1 I
14.8 Procedures and instructions shall be in accordance with ANSI N45.2.5, Section 2.2.
15.0 MEASUREMENT AND PAYMENT 15.1 Jobsite Laboratory Building and Equipment Furnishing of the complete Jobsite Laboratory Building and Equipment will be measured as a 4
unit and paid as a lump sum item.
This item includes renovation of the existing buildings, and/or furnishing additional buildings, if any.
Seventy-five percent (75%) of payment will be made under this subcontractor item when the building (s) and all equipment required to perform the specified Jobsite testing have been installed.
Twenty-five percent (25%) of payment will be made under this subcontractor item whenL.the equipment and all Subcontractor furnished buildings (including foundations) j have been removed upon completion of the work, 4
and cleanup of the work area is finished.
1 33 bg e-
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9 y,-a
Specification 7220-C-208 Revision 18 15.2 Rental for Laboratory Building and Equipment Rental of Laboratory Building and all equipment required to perform the specified jobsite testing will be measured and paid for by the month to the nearest 5 calendar days for the number of months that such bui'. ding and equipment are satisfactorily furnished.
i This item shall also include compensation for all incidental costs borne by the Subcontractor in the operation of the laboratory, including but not limited to:
15.2.1 Costs to supply utilities, including telephone, to the laboratory.
15.2.2 Furnishing all office supplies, except that a) Contractor forms when required will be provided to the Subcontractor, at no cost and b) a duplicating machine is available in the contractor's office, and the Subcontractor may use this machine in preparing test result copies.
15.2.3 Gasoline, lubricants, and upkeep of the Subcontractor's vehicle (s) and equipment.
15.2.4 All materials expended in the performance of this jobsite testing -
i.e. concrete cylinder molds.
15.3 Non-Technical Personnel Services of non-technical personnel ~ (i.e.
clerks) who are assigned to the job on a long i
term basis (greater than 30 calendar days) and whose assignment has been authorized by the Contractor in writing, will be measured and paid for by the month, pravided that for any l
absences ocurring during the month, an adjustr.ent computed on the basis of days absent divided by the number of regular working days in that month will be deducted
'from the monthly payment.
15.4 Laboratory, Chief, Laboratory Technicians and Assistant Technicians and Inspectors Services of each class of technician and inspector who are assigned to the job on a long term basis (greater than 30 calendar L
34
Specification 7220-C-208 Revision 18 4
days) and whose assignment has been authorized j
by the contractor in writing, will be measured and paid for by the. month, subject to the same deduction for partial months as described in paragraph 14.3 above.
15.5 Short Term Personnel when authorized by the contractor in writing, short term personnel services (30 days or less) shall be provided.
Such services will be measured and paid for on the basis of the number of days the employee is on the job.
i The daily rate will be established by dividing the appropriate monthly rate of Item 3 through 8 by the number of regular working days in that month.
Additionally, a travel time allowance to reach the jobsite initially and to later return home after the short term work assignment is completed will be allowed up to a maximum of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> per employee per assignment.
Travel and living expenses of the employee incurred during the short term assignment will be reimbursed at cost upon presentation of receipts with the billing, except uhat a daily meals allowance will be paid, and no receipts are required.
15.6 overtum overti:se for each class of personnel authorized by the Contractor to remain on-site-for more than 8 working hours per day, or to work a non-regular day, will be measured and paid for to the nearest > hour for the number of hours of such overtime satisfactorily performed.
Overtime work will normally be authorized in writing in advance of the work, and in no event later than the morning l
following the day worked.
15.7 Off-site Test Off-site tests, of the various kinds, will be 4
measured and paid for as the number of such i
i tests requested by the contractor and satisfactorily performed.
This payment item will also include any incidental costs for off-site testing, including but not limited to:
35
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DATE REVISIONS l
i FACING SHEET OPERATING ON-SITE BATCH PLANT AND JOB No 7220 i
FURNISHINC CONCRETE
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S ecification 16 4 P
MIDLAND P1. ANT, UNITS 1 & 2 7220-C-23g@
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