23R1302_Amd5-Issued.pdf

N6274223R1302

Amendment No. 0005

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

DRAWINGS

The following drawings dated 30 August 2023 supersede previously issued drawings bearing the same number and title:

DRAWING

NUMBER

NAVFAC

DRAWING

NUMBER

DRAWING TITLE

CD-101 17294371 DEMOLITION PLAN – SHEET 1

CD-104 17294372 DEMOLITION PLAN – SHEET 4

CD-105 17294373 DEMOLITION PLAN – SHEET 5

CD-106 17294374 DEMOLITION PLAN – SHEET 6

CD-107 17294375 DEMOLITION PLAN – SHEET 7

CD-108 17294376 DEMOLITION PLAN – SHEET 8

CD-109 17294377 DEMOLITION PLAN – SHEET 9

CS-301 17294437 DRAINAGE LONGITUDINAL SECTIONS – SHEET 1 OF 8

CS-302 17294438 DRAINAGE LONGITUDINAL SECTIONS – SHEET 2 OF 8

CS-303 17294439 DRAINAGE LONGITUDINAL SECTIONS – SHEET 3 OF 8

CS-304 17294440 DRAINAGE LONGITUDINAL SECTIONS – SHEET 4 OF 8

CS-305 17294441 DRAINAGE LONGITUDINAL SECTIONS – SHEET 5 OF 8

CS-306 17294442 DRAINAGE LONGITUDINAL SECTIONS – SHEET 6 OF 8

CS-307 17294443 DRAINAGE LONGITUDINAL SECTIONS – SHEET 7 OF 8

CS-308 17294444 DRAINAGE LONGITUDINAL SECTIONS – SHEET 8 OF 8

E-511 17294484 PENSTOCK DISTRIBUTION BOARD DETAIL

These revised drawings accompany this Amendment.

SPECIFICATIONS

SECTION 32 11 23 – FINE CRUSHED ROCK AGGREGATE BASE COURSE FOR

FLEXIBLE PAVING

Remove Replace with

Page 1-16 Page 1-16

SECTION 32 13 14.13 – CONCRETE PAVING FOR AIRFIELDS AND OTHER HEAVY

DUTY PAVEMENTS

Pages 1-86 Pages 1-86

N6274223R1302

SECTION 40 60 00 – PROCESS CONTROL

Pages 1-28 Pages 1-28

-- End of Amendment --

FY24 MCAF PROJECT PAF-180500, BOMBER APRON WON 1663847

Royal Australian Air Force Base Tindal, Australia Final Submittal

SECTION 32 11 23

FINE CRUSHED ROCK AGGREGATE BASE COURSE FOR FLEXIBLE PAVING

PART 1 GENERAL

1.1 UNIT PRICES

1.1.1 Measurement

1.1.1.1 Volume

Measure the quantity of FCR completed and accepted, in cubic meters .

Determine the volume of material in-place and accepted by the average job thickness obtained in accordance with paragraph LAYER THICKNESS and the dimensions shown on the drawings.

1.1.2 Payment

1.1.2.1 Base Course Material

Quantities of FCR, determined as specified above, will be paid for at the respective contract unit prices, which will constitute full compensation for the construction and completion of the FCR.

1.1.2.2 Stabilization

Cohesionless subgrade or subbase courses to be stabilized, as specified in paragraph PREPARATION OF UNDERLYING COURSE OR SUBGRADE, will be paid for as a special item on a tonnage basis including extra manipulation as required.

1.1.3 Waybills and Delivery Tickets

Submit copies of waybills and delivery tickets during progress of the work. Before the final payment is allowed, file certified waybills and certified delivery tickets for all aggregates actually used.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

AUSTRALIAN STANDARDS AND NEW ZEALAND STANDARDS (AS/NZS)

AS 1141.3.1 (2021) Methods for Sampling and Testing Aggregates, Method 3.1: Sampling - Aggregates

AS 1141.5 (2000) Methods for Sampling and Testing Aggregates - Particle Density and Water Absorption of Fine Aggregate

AS 1141.6.1 (2000) Methods for Sampling and Testing Aggregates - Particle Density and Water

SECTION 32 11 23 Page 1 GSK JV Amendment No. 0005 22 August 2023

Absorption of Coarse Aggregate - Weighing-In-Water Method

AS 1141.11.1 (2020) Methods for Sampling and Testing Aggregates Particle Size Distribution - Sieving Method

AS 1141.12 (2015; R2018) Methods for Sampling and Testing Aggregates - Materials Finer than 75 um in Aggregates (by Washing)

AS 1141.14 (2007; R2018) Methods for Sampling and Testing Aggregates - Particle Shape by Proportional Caliper

AS 1141.15 (1999) Methods for Sampling and Testing Aggregates, Method 15: Flakiness Index

AS 1141.18 (2022) Methods for Sampling and Testing Aggregates Crushed Particles in Coarse Aggregate Derived from Gravel

AS 1141.22 (2019) Methods for Sampling and Testing Aggregates - Wet/Dry Strength Variation

AS 1141.23 (2021) Methods for Sampling and Testing Aggregates - Los Angeles Value

AS 1141.24 (2018) Methods for Sampling and Testing Aggregates - Evaluation by Exposure to Sodium Sulphate Solution

AS 1141.25.2 (2003) Methods for Sampling and Testing Aggregates, Method 25.2: Degradation Factor - Coarse Aggregate

AS 1141.32 (2019) Methods for Sampling and Testing Aggregates - Weak Particles (Including Clay Lumps, Soft and Friable Particles) in Coarse Aggregates

AS 1152 (1993) Specification for Test Sieves

AS 1289.1.4.2 (2020) Methods of Testing Soils for Engineering Purposes - Soil Compaction and Density Tests - Selection of Sampling Sites - Stratified Random Number Method

AS 1289.3.1.1/3.2.1/3.3.1 Soil Classification Tests - Liquid Limit, Plastic Limit and Plasticity Index

AS 1289.3.1.1 (2009; R2017) Methods of Testing Soils for Engineering Purposes - Soil Classification Tests - Determination of the Liquid Limit of a Soil - Four Point Casagrande Method

AS 1289.3.2.1 (2009) Methods of Testing Soils for Engineering Purposes Soil Classification Tests - Determination of the Plastic Limit

SECTION 32 11 23 Page 2 of a Soil - Standard Method (Reconfirmed 2022)

AS 1289.3.3.1 (2009) Methods of Testing Soils for Engineering Purposes Soil Classification Tests - Calculation of the Plasticity Index of a Soil (Reconfirmed 2022)

AS 1289.3.4.1 (2008; R2016) Methods of Testing Soils for Engineering Purposes - Soil Classification Tests - Determination of the Linear Shrinkage of a Soil - Standard Method

AS 1289.5.2.1 (2017) Methods of Testing Soils for Engineering Purposes, Method 5.2.1: Soil Compaction and Density Tests - Determination of the Dry Density/Moisture Content Relation of a Soil Using Modified Compactive Effort

AS 1289.5.3.1 (2004; R 2016) Methods of Testing Soils for Engineering Purposes, Method 5.3.1:

Soil Compaction and Density Tests - Determination of the Field Density of a Soil - Sand Replacement Method Using a Sand-Cone Pouring Apparatus

AS 1289.5.8.1 (2007) Methods of Testing Soils for Engineering Purposes, Method 5.8.1: Soil Compaction and Density Tests - Determination of Field Density and Field Moisture Content of a Soil Using a Nuclear Surface Moisture-Density Gauge - Direct Transmission Mode

NATIONAL ASSOCIATION OF TESTING AUTHORITIES, AUSTRALIA (NATA)

NATA National Association of Testing Authorities, Australia

ASTM INTERNATIONAL (ASTM)

ASTM D2487 (2017; E 2020) Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System)

1.3 DEFINITIONS

For the purposes of this specification, the following definitions apply.

1.3.1 Graded-Crushed Aggregate Base Course

Graded-crushed aggregate (FCR) base course is well graded, crushed, durable aggregate uniformly moistened and mechanically stabilized by compaction.

SECTION 32 11 23 Page 3

1.3.2 Degree of Compaction

Degree of compaction required, except as noted in the second sentence, is expressed as a percentage of the maximum laboratory dry density obtained by the test procedure presented in AS 1289.5.2.1 abbreviated as a percent of laboratory maximum dry density.

1.4 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Plant, Equipment, and Tools ; G

Waybills and Delivery Tickets

SD-06 Test Reports

Initial Tests ; G

In-Place Tests ; G

Test Section Report ; G

1.5 QUALITY ASSURANCE

Perform sampling and testing using a laboratory approved in accordance with Section 01 45 00.00 10 QUALITY CONTROL. Do not start work requiring testing until the testing laboratory has been inspected and approved. All contractor quality control testing laboratories performing acceptance testing require NATA accreditation. Test the materials to establish compliance with the specified requirements and perform testing at the specified frequency. Furnish copies of test results within 24 hours of completion of the tests.

1.5.1 Sampling

Take samples for laboratory testing in conformance with AS 1141.3.1 .

1.5.2 Tests

1.5.2.1 Gradation Analysis

Perform gradation analysis in conformance with AS 1141.12 and AS 1141.11.1 using sieves conforming to AS 1152 .

1.5.2.2 Liquid Limit and Plasticity Index

Determine liquid limit and plasticity index in accordance with

AS 1289.3.1.1/3.2.1/3.3.1 .

1.5.2.3 Moisture-Density Determinations

Determine the laboratory maximum dry density and optimum moisture content in accordance with paragraph DEGREE OF COMPACTION.

SECTION 32 11 23 Page 4

1.5.2.4 Field Density Tests

Measure field density in accordance with AS 1289.5.3.1 , or AS 1289.5.8.1 .

For the method presented in AS 1289.5.8.1 check the calibration curves and adjust them, if necessary, using only the sand cone method. Use AS 1289.5.8.1 to determine the moisture content of the soil. Check the calibration curves furnished with the moisture gauges along with density calibration checks as described in AS 1289.5.8.1 .

Submit calibration curves and related test results prior to using the device or equipment being calibrated.

1.5.2.5 Wear Test

Perform wear tests on FCR course material in conformance with AS 1141.23 .

1.5.2.6 Flat and Elongated Pieces

Determine flat and elongated pieces on FCR course material in conformance with AS 1141.14 .

1.5.2.7 Soundness

Perform soundness tests on FCR in accordance with AS 1141.24 .

1.5.2.8 Fractured Faces

Perform fractured faces test on FCR coarse aggregate in comformance with

AS 1141.24 .

1.6 ACCEPTANCE

1.6.1 Tolerances

Acceptance of FCR is based on compliance with the tolerances presented in Table 1. Remove any materials found to be non-compliant and replace with compliant material or rework, as directed, to meet the requirements of this specification

TABLE 1

Measurement Tolerance

Grade Plus 0 mm, Minus 10 mm

Smoothness Plus/Minus 10 mm

Individual Test Total Thickness Plus/Minus 10

Average Job Thickness Plus/Minus 6 mm

Compaction Minimum 100 percent

1.6.2 Test Section

Construct a test section consisting of 500 square meters to demonstrate

SECTION 32 11 23 Page 5 the materials, equipment, and construction processes meet the requirements of this specification. Acceptance of the test section is based on compliance with the tolerances listed in Table 1. Rework, re-compact, or remove and replace test sections that do not meet specification requirements. Do not commence full operations until a test section report has been approved. Use the same equipment, materials, and construction methods for the remainder of construction, unless adjustments are approved in advance.

PART 2 PRODUCTS

2.1 AGGREGATES

Provide FCR consisting of clean, sound, durable particles of crushed stone. Provide FCR that is free of silt and clay as defined by ASTM D2487, organic matter, and other objectionable materials or coatings. The portion retained on the 4.75 mm sieve is known as coarse aggregate; that portion passing the 4.75 mm sieve is known as fine aggregate. When the coarse and fine aggregate is supplied from more than one source, provide aggregate from each source that meets the specified requirements.

2.1.1 Course Aggregate

Provide coarse aggregate that complies with the criteria listed below.

Property Test method Requirement

Weak particles AS 1141.32 Max 1.0%

Crushed particles AS 1141.18 100%

Particle density AS 1141.5

AS 1141.6.1

Min 2 300 kg/m3

Water absorption AS 1141.5

AS 1141.6.1

Max 2%

Los Angeles Abrasion AS 1141.23 Max 2530% after 500 revolutions on gradings B & K

Wet Strength AS 1141.22 Min 180 150 kN

Wet/dry strength variation AS 1141.22 Max 25%

Degradation factor on coarse aggregate

AS 1141.25.2 Min 40

Aggregate soundness:

Sodium sulphate

AS 1141.24 2% max weighted loss on any portion

SECTION 32 11 23 Page 6

Flakiness Index on all individual fractions larger than 10 mm

AS 1141.15 Max 30%

Liquid limit on material passing 0.425 mm sieve

AS 1289.3.1.1 Max 25%

Plasticity index on material passing 0.425 mm sieve

AS 1289.3.2.1

AS 1289.3.3.1

Max 5%

Linear Shrinkage on material passing 0.425 mm sieve

AS 1289.3.4.1 Max 2%

2.1.2 Fine Aggregate

Provide fine aggregates consisting of angular particles of uniform density.

2.1.3 Graded-Crushed Aggregate Base Course

Provide FCR aggregate consisting of angular particles produced by crushing stone that meets the requirements for wear and soundness specified for FCR coarse aggregate.

2.1.4 Gradation Requirements

Apply the specified gradation requirements to the completed base course.

Provide aggregates that are continuously well graded within the limits specified in TABLE 2. Use sieves that conform to AS 1152 .

TABLE 2. GRADATION OF AGGREGATES

Percentage By Weight Passsing Square-Mesh Sieve

Sieve Designation No. 1

37.5 mm 100

26.0 mm 100

19.0 mm 95-100

9.5 mm 60-80

4.75 mm 40-60

3.36 mm 30-45

0.425 mm 10-20

SECTION 32 11 23 Page 7

TABLE 2. GRADATION OF AGGREGATES

0.075 mm 0-8

NOTE 1: The values are based on aggregates of uniform specific gravity.

If materials from different sources are used for the coarse and fine aggregates, test the materials in accordance with AS 1141.6.1 and AS 1141.5 to determine their specific gravities. Correct the percentages passing the various sieves as directed if the specific gravities vary by more than 10 percent.

NOTE 32: Gradations containing more than 30 percent retained on the 37.5 mm sieve can produce inconsistent compacted density values when tested in accordance with paragraph DEGREE OF COMPACTION.

2.2 LIQUID LIMIT AND PLASTICITY INDEX

Apply liquid limit and plasticity index requirements to the completed course and to any component that is blended to meet the required gradation. Limit the portion of any component or of the completed course passing the 0.425 mm sieve to be either nonplastic or have a maximum liquid limit of 25 and a maximum plasticity index of 5 and maximum linear shrinkage of 2.

2.3 TESTS, INSPECTIONS, AND VERIFICATIONS

2.3.1 Initial Tests

Perform one of each of the following initial tests on the proposed material prior to commencing construction to demonstrate that the proposed material meets all specified requirements when furnished. Complete this testing for each source if materials from more than one source are proposed. Submit certified copies of test results for approval a mimimum of 30 days before material is required for the work.

a. Gradation Analysis.

b. Liquid limit and plasticity index.

c. Moisture-density relationship.

d. Wear.

e. Flat and Elongated Pieces.

f. Soundness.

g Fractured Faces

2.3.2 Approval of Material

Tentative approval of material will be based on initial test results.

2.4 EQUIPMENT, TOOLS, AND MACHINES

All plant, equipment, and tools used in the performance of the work are subject to approval by the Government before the work is started. Maintain

SECTION 32 11 23 Page 8 all plant, equipment, and tools in satisfactory working condition at all times. Submit a list of proposed equipment, including descriptive data.

Use equipment capable of minimizing segregation, producing the required compaction, meeting grade controls, thickness control, and smoothness requirements as set forth herein.

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

When the FCR is constructed in more than one lift, clean the previously constructed lift of loose and foreign matter by sweeping with power sweepers or power brooms. Use hand brooms in areas where power cleaning is not practicable. Provide adequate drainage during the entire period of construction to prevent water from collecting or standing on the working area.

3.2 STOCKPILING MATERIAL

Clear and level storage sites prior to stockpiling of material. Stockpile all materials, including approved material available from excavation and grading, in the manner and at the locations designated. Stockpile aggregates on the cleared and leveled areas designated to prevent segregation. Stockpile materials obtained from different sources separately.

3.3 PREPARATION OF UNDERLYING COURSE OR SUBGRADE

Clean the underlying course or subgrade of all foreign substances prior to constructing the base course(s). Construct the surface of the underlying course or subgrade to meet specified compaction and surface tolerances.

Correct ruts or soft yielding spots in the underlying courses, areas having inadequate compaction, and deviations of the surface from the specified requirements set forth herein by loosening and removing soft or unsatisfactory material and adding approved material, reshaping to line and grade, and recompacting to specified density requirements.

3.4 GRADE CONTROL

Provide a finished and completed base course conforming to the lines, grades, and cross sections shown. Place line and grade stakes as necessary for control.

3.5 MIXING AND PLACING MATERIALS

3.5.1 Mixing

Mix the coarse and fine aggregates in a stationary pugmill mixing plant.

Make adjustments in mixing procedures or in equipment to obtain true grades, to minimize segregation or degradation, to obtain the required water content, and to produce a satisfactory base course meeting all requirements of this specification.

3.5.2 Placing

Place the mixed material on the prepared subgrade or subbase in lifts of uniform thickness with an approved spreader. Place the lifts so that when compacted they are true to the grades or levels required with the least possible surface disturbance. Where the base course is placed in more than

SECTION 32 11 23 Page 9 one lift, clean the previously constructed lift of loose and foreign matter by sweeping with power sweepers, power brooms, or hand brooms. Make adjustments in placing procedures or equipment to obtain true grades, to minimize segregation and degradation, to adjust the water content, and to produce an acceptable base course. Spreading by Motor grader permitted.

3.6 LAYER THICKNESS

Compact the completed base course to the thickness indicated. Limit individual compacted lifts to a maximum thickness of 150 mm and a minimum thickness of 75 mm . Compact the base course(s) to a total thickness that is within the tolerances of paragraph ACCEPTANCE of the thickness indicated. Where the measured thickness is more than 13 mm deficient, correct such areas by scarifying, adding new material of proper gradation, reblading, and recompacting as directed. Where the measured thickness is more than 13 mm thicker than indicated, the course will be considered as conforming to the specified thickness requirements. However, the requirements for wearing course thickness and plan grade are still applicable. The average job thickness will be the average of all thickness measurements taken for the job and within the tolerances of paragraph ACCEPTANCE of the thickness indicated.

3.7 COMPACTION

Compact each lift of the base course, as specified, with approved compaction equipment. For cohesive soils, maintain water content during the compaction procedure to within plus or minus 2 percent of the optimum water content determined from laboratory tests as specified and for cohesionless soils, maintain the water content to facilitate compaction without bulking. Begin rolling at the outside edge of the surface and proceed to the center, overlapping on successive trips at least one-half the width of the roller. Slightly vary the length of alternate trips of the roller. Adjust speed of the roller as needed so that displacement of the aggregate does not occur. Compact mixture with hand-operated power tampers in all places not accessible to the rollers. Continue compaction until each lift is compacted through the full depth to meet the compaction requirements of Table 1. Make such adjustments in compacting or finishing procedures to obtain true grades, to minimize segregation and degradation, to reduce or increase water content, and to produce a compliant base course. Remove any materials found to be non-compliant and replace with compliant material or rework, as directed, to meet the requirements of this specification.

3.8 PROOF ROLLING

In addition to the compaction specified, proof roll areas designated on the drawings by application of minimum 12 coverages of a heavy pneumatic-tired roller having four or more TYRE abreast, each tire loaded to a minimum of 12,500 kg and inflated to a minimum of 1,400 kPa or a non-pneumatic tyred roller at minimum 12,500 kg per wheel and minimum 1040 kPa average tyre contact pressure. A coverage is defined as the application of one tire print over the designated area. In the areas designated, apply proof rolling to the top of the underlying material on which the base course is laid and to the top of the completed base course.

Maintain water content of the underlying material and each lift of the base course as specified in Paragraph COMPACTION from start of compaction to completion of proof rolling of that lift. Remove any base course materials or any underlying materials that produce permanent deformation exceeding 10 mm by proof rolling and replace with satisfactory materials.

SECTION 32 11 23 Page 10

Then recompact and proof roll to meet these specifications.

3.9 EDGES OF BASE COURSE

Place approved material along the outer edges of the base course in sufficient quantity to compact to the thickness of the course being constructed. When the course is being constructed in two or more lifts, simultaneously roll and compact at least a 600 mm width of this shoulder material with the rolling and compacting of each lift of the base course.

3.10 FINISHING

Finish the surface of the top lift of base course after final compaction and proof rolling by cutting any overbuild to grade and rolling with a steel-wheeled roller. Do not add thin lifts of material to the top lift of base course to meet grade. If the elevation of the top lift of base course exceeds the tolerances of paragraph ACCEPTANCE, scarify the top lift to a depth of at least 75 mm and blend new material in and compact and proof roll to bring to grade. Make adjustments to rolling and finishing procedures to minimize segregation and degradation, obtain grades, maintain moisture content, and produce an acceptable base course. If the surface become rough, corrugated, uneven in texture, or traffic marked prior to completion, scarify the non-compliant portion and rework and recompact it or replace as directed.

3.11 SMOOTHNESS TEST

Construct the top lift so that the surface shows no deviations exceeding the tolerances of paragraph ACCEPTANCE when tested with a 3.0 meter straightedge. Test the entire area in both a longitudinal and a transverse direction on parallel lines. Perform the transverse lines at a maximum spacing of 4.5 m or less apart, as directed. Perform the longitudinal lines at the centerline of each placement lane, regardless of whether multiple lanes are allowed to be paved at the same time, and at the 1/8th point in from each side of the lane. Hold the straightedge in contact with the surface and moved ahead one-half the length of the straightedge for each successive measurement. Determine the amount of surface irregularity by placing the freestanding (unleveled) straightedge on the pavement surface and measuring the maximum gap between the straightedge and the pavement surface. Determine measurements along the entire length of the straight edge. Correct deviations exceeding this amount by removing material and replacing with new material, or by reworking existing material and compacting it to meet these specifications.

3.12 FIELD QUALITY CONTROL

3.12.1 In-Place Tests

Perform each of the following in-place tests on samples taken from the placed and compacted FCR. Determine sample locations using random sampling in accordance with AS 1289.1.4.2 . Take samples and test at the rates indicated.

a. Perform density tests on every lift of material placed and at a frequency of one set of tests for every 250 square meters , or portion thereof, of completed area. Gradations containing more than 30 percent retained on the 37.5 mm sieve can produce inconsistent compacted density values when tested in accordance with paragraph DEGREE OF

COMPACTION.

SECTION 32 11 23 Page 11

b. Perform gradation analysis on every lift of material placed and at a frequency of one sieve analysis for every 500 square meters , or portion thereof, of material placed.

c. Perform liquid limit and plasticity index tests at the same frequency as the sieve analysis.

d. Measure the thickness of the base course at intervals providing at least one measurement for each 500 square meters of base course or part thereof. Measure the thickness using test holes, at least 75 mm in diameter through the base course.

3.12.2 Approval of Material

Final approval of the materials will be based on tests for gradation, liquid limit, and plasticity index performed on samples taken from the completed and fully compacted course(s).

3.13 TRAFFIC

Completed portions of the base course can be opened to limited traffic, provided there is no marring or distorting of the surface by the traffic.

Do not allow heavy equipment on the completed base course except when necessary for construction. When it is necessary for heavy equipment to travel on the completed base course, protect the area against marring or damage to the completed work. Repair damage to meet these specifications.

3.14 MAINTENANCE

Maintain the base course in a satisfactory condition until the full pavement section is completed and accepted. Immediately repair any defects and repeat repairs as often as necessary to keep the area intact. Retest any base course that was not paved over prior to the onset of winter to verify that it still complies with the requirements of this specification. Rework or replace any area of base course that is damaged as necessary to comply with this specification.

3.15 DISPOSAL OF UNSATISFACTORY MATERIALS

Dispose of any unsuitable materials that have been removed in waste disposal areas indicated. No additional payments will be made for materials that have to be replaced.

3.16 INSPECTION AND HOLD POINTS FOR CONTRACTING OFFICER RELEASE DURING

CONSTRUCTION

3.16.1 Contracting Officer Inspections

Perform inspections in accordance with the following Table.

SECTION 32 11 23 Page 12

Process Description Submission details

Mixing plant calibration

The calibration of the plant must be checked weekly during production to ensure the maintenance of accurate mix control within the project. An Inspection Point apply.

Prior (48 hours) notice to Contracting Officer of calibration of the plant

Roller for proof rolling

For the heavy non-pneumatic tyred roller(s), the Contractor must undertake a load vs average tyre contact pressure determination for the non-pneumatic tyres fitted to the roller for the wheel load required. A Hold Point and Inspection Point apply.

Prior (48 hours) notice to Contracting Officer of calibration of Heavy Non-Pneumatic Tyred Roller

3.16.2 Hold Points for Release by the Contracting Officer

The hold points from the following Table shall apply during construction.

Plant, Equipment and Tools

Approval of Heavy Non-Pneumatic Tyred Roller

A load vs average tyre contact pressure determination/calibration not less than not less than 7 days prior to use of the Roller in the Works.

Stockpiles

Commencement of Stockpiling of Base Material or Sub-base Material

Prior (48 hours) notice to Contracting Officer that preparation of stockpile sites has been completed.

Return of Surplus Material to Storage Stockpiles

Notification (immediate) to Contracting Officer of intent to return surplus material to storage stockpiles.

Placement

Placement of any layer of crushed rock pavement layers

Written advice to the Contracting Officer that the underlying surface complies with the specified requirements;

Prior (minimum one hour) to placement of crushed rock pavement layers.

SECTION 32 11 23 Page 13

Placement of Material with other than a Spreading Machine

Area of work where other than spreading machine placing is proposed;

Reason why spreading machine placing is impractical.

Proof Rolling

Placing of next layer of pavement material or priming on area/lot of material which has been successfully proof rolled

Contractor’s record of successful completion of proof-rolling of each lot of material, countersigned by Contracting Officer, within 24 hours of completion of proof rolling.

Remedial works for area of pavement material that does not support proof rolling

1. Notice (immediate) to Contracting Officer of pavement layer not supporting proof rolling, and;

2. Contractor’s proposal for remedial work to area of pavement layer that does not support proof-rolling.

Surface Finishing

Construction of subsequent layers Conformance report that the finished layer complies with the requirements of the specification; Within one (1) working day of completion of the pavement layer.

Quality Assurance - Requirements prior to commencement of works

Delivery of Crushed rock Material to Site

Source(s) and details and all test results demonstrating conformance with the specification of each type of Crushed Rock Material proposed for use in the Work.

Delivery of Crushed Rock Material to Site

50 kg Reference Samples for both Crushed Rock Pavement Materials as applicable no later than four (4) weeks to the commencement of the Works.

Proof rolling Statement of proposed method of controlling the proof rolling as specified not less than three

(3) weeks prior to commencement of proof rolling.

Quality Assurance - Production

Delivery of Base Material to Site Test results for each lot of material represented by each bulk sample

Use of Materials in the Works 1. Statement that material incorporated in the lot complies with specification in every respect;

2. Test results for the lot of material.

SECTION 32 11 23 Page 14

Placing of Next Layer of Material on the lot subject to testing

1. Statement that the lot complies with the dry density requirements;

2. Dry density test results for the lot;

3. Lot Average Density Ratio;

4. Conformance report or (as applicable);

5. Non-conformance Report including proposed disposition within one (1) working day of completion of the density testing from the Lot.

Placing of Next Layer of Material on the Lot subject to Testing

1. Record of the level survey including constructed surface levels, design surface levels, differences, summaries,

2. Conformance report including specified information or (as applicable),

3. Non-conformance report including specified information and proposed disposition; within one (1) working day of completion of the survey.

Placing of Next Layer of Material on the lot subject to testing

1. Conformance report and surface smoothness testing records including the plan of the lot specified, or (as applicable);

2. Non-conformance report, surface smoothness testing records including the plan of the lot, summaries as specified and proposed disposition within one (1) working day of completion of the Surface Smoothness Testing.

-- End of Section --

SECTION 32 11 23 Page 15

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SECTION 32 11 23 Page 16

SECTION 32 13 14.13

CONCRETE PAVING FOR AIRFIELDS AND OTHER HEAVY DUTY PAVEMENTS

PART 1 GENERAL

1.1 UNIT PRICES

1.1.1 Measurements

The quantity of concrete to be paid for will be the volume of concrete in cubic meters including thickened edges, where required, placed in the completed and accepted pavement. Concrete will be measured in place in the completed and accepted pavement only within the neat line dimensions shown in the plan and cross section. No deductions will be made for rounded or beveled edges or the space occupied by pavement reinforcement, dowel bars, or electrical conduits, nor for any void, or other structure extending into or through the pavement slab, measuring 0.1 cubic meter or less in volume. No other allowance for concrete will be made unless placed in specified locations in accordance with the approved contract modification.

The quantity of other materials specified herein, and used in the construction of the work covered by this section, will not be measured for payment, but will be considered a subsidiary obligation, covered under the price per cubic meter for concrete. Joint sealing materials are covered in Section 32 01 19.61 SEALING OF JOINTS IN RIGID PAVEMENT.

1.1.2 Payments

1.1.2.1 Lum Sum

The quantity of concrete will be paid for and included in the lump-sum contract price. If less than 100 percent payment is due based on the pay factors stipulated below, a unit price of USD 464 per cubic meter will be used for purposes of calculating the payment reduction. Payment will constitute full compensation for all materials, equipment, plant and tools, and for all labor and other incidentals necessary to complete the concrete pavement, except for other items specified herein for separate payment.

1.1.3 Payment of Lots

When a lot of material fails to meet the specification requirements, that lot will be accepted at a reduced price or be removed and replaced. The lowest computed percent payment determined for any pavement characteristic discussed below (for example, thickness, grade, and surface smoothness) becomes the actual percent payment for that lot. The actual percent payment will be applied to the unit price and the measured quantity of concrete in the lot to determine actual payment. Use results of strength tests to control concreting operations. Strength will be evaluated, but will not be considered for payment adjustment. Remove and replace any pavement not meeting the required 'Concrete Strength for Final Acceptance' at no additional cost to the Government.

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1.1.4 Payment Adjustment for Smoothness

1.1.4.1 Straightedge Testing

Record location and deviation from straightedge for all measurements. When more than 5.0 and less than or equal to 10.0 percent of all measurements made within a lot exceed the tolerance specified in paragraph SURFACE SMOOTHNESS, after any reduction of high spots or removal and replacement, the computed percent payment based on surface smoothness will be 95 percent. When more than 10.0 percent and less than or equal to 15.0 percent of all measurements exceed the tolerance, the computed percent payment will be 90 percent. When more than 15.0 and less than or equal to

20.0 percent of all measurements exceed the tolerance, the computed percent payment will be 75 percent. Remove and replace the lot when more than 20.0 percent of the measurements exceed the tolerance, at no additional cost to the Government.

1.1.4.2 Profilograph Testing

Record location and data from all profilograph measurements. When the Profile Index of a 0.1 km segment of a lot exceeds the tolerance specified in paragraph SURFACE SMOOTHNESS by 16 mm per km but less than 32 mm per km , after any reduction of high spots or removal and replacement, the computed percent payment based on surface smoothness will be 95 percent. When the Profile Index exceeds the tolerance by 32 mm per km but less than 47 mm per km , the computed percent payment will be 90 percent. When the Profile Index exceeds the tolerance by 47 mm per km but less than 63 mm per km , the computed percent payment will be 75 percent. Remove and replace the lot when the Profile Index exceeds the tolerance by 63 mm per km or more, at no additional cost to the Government.

1.1.5 Payment Adjustment for Plan Grade

When more than 5.0 and less than or equal to 10.0 percent of all measurements made within a lot are outside the specified tolerance, the computed percent payment for that lot will be 95 percent. When more than

10.0 percent but less than 50 percent are outside the specified tolerances, the computed percent payment for the lot will be 75 percent.

Remove and replace the deficient area where the deviation from grade exceeds the specified tolerances by 50 percent or more, at no additional cost to the Government.

1.1.6 Payment Adjustment for Thickness

Using the Average Thickness of the lot, determine the computed percent payment for thickness by entering the following table:

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Computed Percent Payment for Thickness

Deficiency in Thickness Determined by cores millimeters

Pavements Equal To or Greater Than 200 mm Thick

Pavements Less Than 200 mm Thick

0.00 to 6.2 100 100

6.3 to 12.5 75 65

12.6 to 18.9 50 0

19.0 or greater 0 0

Where 0 percent payment is indicated, remove the entire lot and replace at no additional cost to the Government. Where either of the two cores from a sublot show a thickness deficiency of 19 mm or greater, drill two more cores in the sublot and compute the average thickness of the four cores.

If this average shows a thickness deficiency of 19 mm or more.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AUSTRALIAN STANDARDS AND NEW ZEALAND STANDARDS (AS/NZS)

AS 1289.1.4.2 (2020) Methods of Testing Soils for Engineering Purposes - Soil Compaction and Density Tests - Selection of Sampling Sites - Stratified Random Number Method

AS 2758.1 (2014) Aggregates and Rock for Engineering Purposes, Part 1: Concrete Aggregates

AS/NZS 4671 (2019) Steel for the Reinforcment of Structures

AS 3972 (2010) General Purpose and Blended Cements

AS 3582.1 (2016) Supplementary Cementitious Materials - Fly ash

AS 1478.1 (2000) Chemical Admixtures for Concrete, Mortar and Grout - Admixtures for Concrete

AS 1012.8 (2014) Methods for Testing Concrete - Method for Making and Curing Concrete Compression, Indirect Tensile and Flexure Test Specimens in the Laboratory or in the Field

AS 1012.11 (2000) Methods for Testing Concrete - Method for the Determination of the Flexural Strength of Concrete Specimens

SECTION 32 13 14.13 Page 3

AS 1012.3.1 (2014) Methods for Testing Concrete - Determination of Properties Related to the Consistency of Concrete - Slump Test

AS 1012.1 (2014) Methods for Testing Concrete - Sampling of Concrete

AS 1012.4.1 (2014) Methods of Testing Concrete Determination of Air Content of Freshly Mixed Concrete - Measuring Reduction in Concrete Volume with Increased Air Pressure

AS 1012.12.1 (1998) Methods of Testing Concrete Determination of Mass Per Unit Volume of Hardened Concrete - Rapid Measuring Method (Reconfirmed 2014)

AS 1012.20 (2016) Methods for Testing Concrete - Determination of Chloride and Sulfate in Hardened Concrete and Concrete Aggregates

AS 1012.13 (2015) Methods for Testing Concrete - Determination of the Drying Shrinkage of Concrete for Samples Prepared in the Field or in the Laboratory

AS 1141.24 (2018) Methods for Sampling and Testing Aggregates - Evaluation by Exposure to Sodium Sulphate Solution

AS 1141.12 (2015; R2018) Methods for Sampling and Testing Aggregates - Materials Finer than 75 um in Aggregates (by Washing)

AS 1141.23 (2021) Methods for Sampling and Testing Aggregates - Los Angeles Value

AS 1141.11.1 (2020) Methods for Sampling and Testing Aggregates Particle Size Distribution - Sieving Method

AS 1141.32 (2019) Methods for Sampling and Testing Aggregates - Weak Particles (Including Clay Lumps, Soft and Friable Particles) in Coarse Aggregates

AS 1141.65 (2008) Methods for Sampling and Testing Aggregates - Alkali Aggregate Reactivity - Qualitative Petrological Screening for Potential Alkali-Silica Reaction

AS 1141.60.1 (2014) Methods for Sampling and Testing Aggregates - Potential Alkali-Silica Reactivity - Accelerated Mortar Bar Method

AS 1141.3.1 (2021) Methods for Sampling and Testing Aggregates, Method 3.1: Sampling - Aggregates

SECTION 32 13 14.13 Page 4

AS 1141.14 (2007; R2018) Methods for Sampling and Testing Aggregates - Particle Shape by Proportional Caliper

AS 1141.22 (2019) Methods for Sampling and Testing Aggregates - Wet/Dry Strength Variation

AS 1141.26 (2019) Methods for Sampling and Testing Aggregates, Method 26: Secondary Minerals Content in Igneous Rocks

AS 1141.13 (2007; R2016) Methods for Sampling and Testing Aggregates - Materials Finer than 2 um

AS 1141.31 (2015) Methods for Sampling and Testing Aggregates - Light Particles

AS 1141.35 (2019) Methods for Sampling and Testing Aggregates - Detection of Sugar Contamination in Concrete Aggregates

AS 1141.6.1 (2000) Methods for Sampling and Testing Aggregates - Particle Density and Water Absorption of Coarse Aggregate - Weighing-In-Water Method

AS 1141.5 (2000) Methods for Sampling and Testing Aggregates - Particle Density and Water Absorption of Fine Aggregate

AS 1141.66 (2022) Methods for Sampling and Testing Aggregates, Method 66: Methylene Blue Adsorption Value of Fine Aggregate and Mineral Fillers

AS 1141.25.3 (2003) Methods for Sampling and Testing Aggregates - Degradation Factor - Fine Aggregate

AS 1141.34 (2018) Methods for Sampling and Testing Aggregates - Organic Impurities other than Sugar

AUSTROADS

AG:PT/T530 Calibration of Bitumen Sprayers

NATIONAL ASSOCIATION OF TESTING AUTHORITIES, AUSTRALIA (NATA)

NATA National Association of Testing Authorities, Australia

AMERICAN CONCRETE INSTITUTE INTERNATIONAL (ACI)

ACI 211.1 (1991; R 2009) Standard Practice for Selecting Proportions for Normal, Heavyweight and Mass Concrete

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ACI 214R (2011) Evaluation of Strength Test Results of Concrete

ACI 305R (2020) Guide to Hot Weather Concreting

ACI 306R (2016) Guide to Cold Weather Concreting

ACI 325.14R (2017) Guide for Design and Proportioning of Concrete Mixtures for Pavements

ASTM INTERNATIONAL (ASTM)

ASTM A184/A184M (2019) Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement

ASTM A996/A996M (2016) Standard Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement

ASTM A1078/A1078M (2019) Standard Specification for Epoxy-Coated Steel Dowels in Concrete Pavement

ASTM C94/C94M (2021b) Standard Specification for Ready-Mixed Concrete

ASTM C138/C138M (2017a) Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete

ASTM C171 (2020) Standard Specification for Sheet Materials for Curing Concrete

ASTM C174/C174M (2017) Standard Test Method for Measuring Thickness of Concrete Elements Using Drilled Concrete Cores

ASTM C260/C260M (2010a; R 2016) Standard Specification for Air-Entraining Admixtures for Concrete

ASTM C294 (2012; R 2017) Standard Descriptive Nomenclature for Constituents of Concrete Aggregates

ASTM C881/C881M (2020a) Standard Specification for Epoxy-Resin-Base Bonding Systems for Concrete

ASTM C1017/C1017M (2013; E 2015) Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete

ASTM C1064/C1064M (2017) Standard Test Method for Temperature of Freshly Mixed Hydraulic-Cement Concrete

ASTM C1260 (2021) Standard Test Method for Potential

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Alkali Reactivity of Aggregates (Mortar-Bar Method)

ASTM C1602/C1602M (2018) Standard Specification for Mixing Water Used in Production of Hydraulic Cement Concrete

ASTM D1752 (2018) Standard Specification for Preformed Sponge Rubber, Cork and Recycled PVC Expansion Joint Fillers for Concrete Paving and Structural Construction

ASTM E1274 (2018) Standard Test Method for Measuring Pavement Roughness Using a Profilograph

NATIONAL READY MIXED CONCRETE ASSOCIATION (NRMCA)

NRMCA QC 3 (2015) Quality Control Manual: Section 3, Plant Certifications Checklist:

Certification of Ready Mixed Concrete Production Facilities

U.S. AIR FORCE (USAF)

TSPWG M 3-250-04.97-05 (2019) Proportioning Concrete Mixtures with Graded Aggregates for Rigid Airfield Pavements

U.S. ARMY CORPS OF ENGINEERS (USACE)

COE CRD-C 55 (1992) Test Method for Within-Batch Uniformity of Freshly Mixed Concrete

COE CRD-C 130 (2001) Standard Recommended Practice for Estimating Scratch Hardness of Coarse Aggregate Particles

COE CRD-C 300 (1990) Specifications for Membrane-Forming Compounds for Curing Concrete

COE CRD-C 521 (1981) Standard Test Method for Frequency and Amplitude of Vibrators for Concrete

COE CRD-C 662 (2009) Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials, Lithium Nitrate Admixture and Aggregate (Accelerated Mortar-Bar Method)

1.3 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-03 Product Data

Diamond Grinding Plan ; G

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Dowels ; G

Dowel Bar Assemblies ; G

Equipment ; G

Proposed Techniques ; G

SD-05 Design Data

Preliminary Proposed Proportioning ; G

Proportioning Studies ; G

SD-06 Test Reports

Batch Plant Manufacturer's Inspection Report ; G

Slipform Paver Manufacturer's Inspection Report ; G

Sampling and Testing ; G

Diamond Grinding of PCC Surfaces ; G

Mixer Performance (Uniformity) Testing ; G

Repair Recommendations Plan ; G

Test-Section Pre-Production Paving Report ; G

SD-07 Certificates

Contractor Quality Control Staff ; G

Laboratory Accreditation and Validation

Commercial Laboratory ; G

NRMCA Certificate of Conformance

1.4 PLACEMENT AND PAVING

Provision is made for placement of concrete using a self propelled machine paver into either fixed forms or via direct slip-forming of plastic concrete or placement by Telebelt with fixed forms. The construction method that is best suited to the available concrete production capacity and workforce skillset at the project location must be adopted.

1.5 QUALITY CONTROL

1.5.1 Contractor Quality Control Staff

Reference Section 01 45 00.00 10 QUALITY CONTROL for Contractor personnel qualification requirements. Submit American Concrete Institute certification for Contractor Quality Control staff. Qualifications and resumes for petrographer, surveyor, concrete batch plant operator, and profilograph operator. All Contractor Quality Control personnel assigned to concrete construction are required to be American Concrete Institute

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(ACI) certified in the following grade:

a. The minimum requirements for the CQC System Manager consist of being a graduate engineer or a graduate of construction management, with a minimum of 5 years airfield construction experience and a minimum of 1 year experience as a CQC System Manager on an airfield construction project.

b. CQC personnel responsible for inspection of concrete paving operations: ACI Concrete Transportation Inspector. The ACI Concrete Transportation Inspector is required to be present at the paving site during all paving operations, with the exception of the initial saw cutting operation. The QC manager is required to be present during initial saw cutting operations.

c. CQC staff is required to oversee all aspects of sawing operations (sawing, flushing, vacuuming, checking for random cracking, lighting).

d. Lead Foreman or Journeyman of the Concrete Placing, Finishing, and Curing Crews: ACI Concrete Flatwork Technician/Finisher .

e. Batch Plant Manufacturer's Representative: A representative from the batch plant manufacturer is required to be on-site to inspect and make necessary adjustments to all components of the batch plant including but not limited to aggregate bin weighing operations, water metering, cement and fly ash weighing devices. All necessary inspections and adjustments by the manufacturer representative is required to be performed prior to uniformity testing. Submit a written Batch Plant Manufacturer's Inspection Report signed by the representative noting all inspection items and corrections and stating the batch plant is capable of producing the volume of concrete as required herein.

f. Field Testing Technicians: ACI Concrete Field Testing Technician, Grade I.

g. Slipform Paving Equipment Manufacturer's Representative: A representative of the slipform paving equipment manufacturer is required to be on-site to inspect and make corrections to the paving equipment to ensure proper operations. Perform a complete and full hydraulic flow test of the vibrator system prior to the test section being placed. Submit a written Slipform Paver Manufacturer's Inspection Report signed by the manufacturer's representative noting all inspections, corrections, and flow tests have been performed and the paver is in a condition to perform the required work.

h. Laboratory Testing Technicians: ACI Concrete Strength Testing Technician and Laboratory Testing Technician, Grade I or II.

1.5.2 Other Staff

Submit for approval, the qualifications and resumes for the following staff:

a. Petrographer: Bachelor of Science degree in geology or petrography, trained in petrographic examination of concrete aggregate according to ASTM C294 and AS 1141.65 and trained in identification of the specific deleterious materials and tests identified in this specification.

Detail the education, training and experience related to the project-specific test methods and deleterious materials in the Resume

SECTION 32 13 14.13 Page 9 and submit at least 20 days before petrographic and deleterious materials examination is to commence .

b. Licensed Surveyor: Perform all survey work under the supervision of a Licensed Surveyor.

c. Concrete Batch Plant Operator: National Ready Mix Concrete Association (NRMCA) Plant Manager certification. Provide a NRMCA Certificate of Conformance for the batch plant operator.

d. Profilograph Operator: Certification by equipment manufacturer or a state Department of Transportation.

1.5.3 Laboratory Accreditation and Validation

Provide laboratory and testing facilities. All sampling, testing and certification must be carried out by laboratories registered by the National Association of Testing Authorities ( NATA) for the sampling, testing and certification required. Provide current accreditation and include the required and optional test methods, as specified. In addition, all contractor quality control testing laboratories performing acceptance testing require USACE validation by the Material Testing Center (MTC) for both parent laboratory and on-site laboratory. Validation on all laboratories is required to remain current throughout the duration of the paving project. Contact the MTC manager listed at http://www.erdc.usace.army.mil/Media/FactSheets/FactSheetArticleView/tabid/9254/ Article/476661/materials-testing-center.aspx for costs and scheduling.

Provide on-site temperature-controlled concrete curing facilities.

1.5.3.1 Aggregate Testing and Mix Proportioning

Aggregate testing and mixture…