Attachment 1 - Scope of Work Dated 13 July 2020.pdf

Scope of Work

Bldg. #25 & Bldg. #43 Parking Lot, Sidewalks, and Roadway Pavement

Project Number VBDZ202105

PROJECT DESCRIPTION

The Contractor shall provide all construction services and materials to pave parking lots located at the Bldg. #25, Bldg. #43, install new sidewalks, and repave roadway section all marked on the attached sketches. Pictures and notes provided for site awareness.

A. Bldg. #43 Parking Lot: (60,000 sqft appx.) (see attached map for location marked as Sketch #1)

1. All measurements should be field verified by contractor

2. Demo-

a. Asphalt

1. All asphalt will be removed to an approximate depth of 4 ½”

2. All debris will be removed and area cleaned

3. See Sketch #1 for location

4. All measurements should be field verified by contractor

b. Remove concrete island areas located in parking lot (see pictures 3-9)

1. Stone and trees will be removed by contractor

a. Approximately 10 stumps within island

i. Roots will be removed from areas also

b. Island will not be re-installed, pavement from parking lot will flow into road way

3. Construction-

a. Install 3” binder: Type 3 NSYDOT

b. Tack coat will be placed

1. Tack coat will conform to NYSDOT 702-90 emulsified asphalt

2. All areas will be inspected by 109th representative to agree that areas have been coated completely

c. Install 1 ½” top course will consist of: Type 6F NYSDOT

4. Sidewalk leading from parking lot to Bldg. #34

a. Sidewalk will be removed

b. Sidewalk will be reset to meet new pavement and granite curbing

1. Sidewalk forming perpendicular will slope to meet walk through sidewalk

5. Saw cut areas that meet existing pavement

a. Make sure all edges are clean

6. Repaint parking lot lines and markings

a. Paint will conform with NYSDOT Section 640-2, white marking paint

7. Bollard replacement (see picture #11)

a. See sketch #3 for design details

8. New area to be boxed out (see picture #12)

a. Boxed out to appx depth of 16”

1. 12” of crushed stone

2. 3” of binder

3. Tack coat (as necessary)

4. 1 ½” of top coat

9. Area to be regraded, back side of Bldg. #43 (see picture #13)

a. Area to be regraded to meet newer asphalt better

B. Bldg. #25 Parking Lot: (17,950 sqft appx.) (see attached map for location marked as Sketch #2)

1. All measurements should be field verified by contractor

2. Demo-

a. Asphalt

Date: 13 July 2020

W50S8J-20-B-0001 Attachment 01: Statement of Work

1. All asphalt will be removed to an approximate depth of 4 ½”

2. All debris will be removed and area cleaned

3. See attachment #2 for location

4. All measurements should be field verified by contractor

b. Remove concrete island areas located in parking lot (see pictures 14 & 15)

1. Stone and trees (5 trees & stumps) will be removed by contractor

a. Island will not be re-installed, pavement from parking lot will flow into road way

b. Where island was will need to be boxed out 12” of crushed stone

i. Compacted in 6” lifts

ii. Compaction test required for each lift

c. Where island was will be painted white with white diagonals to discern from parking area and roadway

c. New storm water drain

1. Drain will stay in line with underground culvert

a. New catch basin will be a curb inset

2. Dimensions of new catch basin box will be the same as old one

a. Invert will match existing grade

3. See picture #17 for details

4. See sketch #2 for location

3. Construction-

a. Install 3” binder: Type 3 NSYDOT

b. Tack coat will be placed

1. Tack coat will conform to NYSDOT 702-90 emulsified asphalt

2. All areas will be inspected by 109th representative to agree that areas have been coated completely

c. Install 1 ½” top course will consist of: Type 6F NYSDOT

4. Sidewalk leading from Bldg. #25 to parking lot

a. Sidewalk will be removed to last set of stairs

b. Sidewalk will slope going into parking lot

c. Curbing will meet edge of pavement

d. Curbing will slope to meet top edge of concrete sidewalk

5. Saw cut areas that meet existing pavement

a. Make sure all edges are clean

6. Repaint parking lot lines and markings

a. Paint will conform with NYSDOT Section 640-2, white marking paint

C. Roadway from Bldg. 42 to Bldg. #25: (30,850 sqft appx.) (see attached map for location marked as Sketch #2)

1. All measurements should be field verified by contractor

2. Demo-

a. Asphalt

1. All asphalt will be milled to a depth of 1 ½”

2. All debris will be removed and area cleaned

3. See Sketch #1 & #2 for location

3. Construction-

a. Tack coat will be placed

1. Tack coat will conform to NYSDOT 702-90 emulsified asphalt

2. All areas will be inspected by 109th representative to agree that areas have been coated completely

b. Install 1 ½” top course will consist of: Type 6F NYSDOT

4. Saw cut areas that meet existing pavement

a. Make sure all edges are clean

5. Repaint parking area line and markings

a. Paint will conform with NYSDOT Section 640-2, white marking paint

D. Place Sidewalk: (580 lnft appx.) (see Sketch #1 & #2)

1. Where indicated on attached map place sidewalks

2. All measurements should be field verified by contractor

3. Demo-

a. Clear 2800 sqft of stone

4. Construction

a. Sidewalk- mix design will be submitted to 109th CE Engineering Dept. for approval

1. Concrete

a. Concrete mix will have max aggregate size of 1 ½”

i. Will meet a 3500 PSI strength

ii. Slump testing will be required

1. 3” (+/- 1”)

iii. 3 Test cylinders will be required for every truck

1. Test results will be for 7, 14, & 28 day(s)

b. Width of sidewalk will be 60”

c. Thickness of sidewalk will be 5”

d. Contraction joints in concrete

i. Contraction joints shall be constructed so as to divide the sidewalk into square slabs the greatest horizontal dimension of which shall no exceed

6 feet (+/- 15%)

e. Tooled joints will be evenly spaced

f. Finish of concrete will be broom

g. Edges will be tooled

h. WWF mesh will be used for reinforcement

i. Size- 6” x 6” x 1.4 WWF

1. All mesh will be clean and rust free

2. Placed on concrete chairs

2. Subbase of sidewalk

a. Excavate 6” below bottom of sidewalk, replace with ¾” minus crushed stone

i. Before placing base material compact subbase, test compaction

ii. Compacted base material

1. Material will be at 95% density or more

2. Test results will be required before placement of concrete

5. Ramps

a. Will be sloped to meet edge of granite curb which will meet with edge of asphalt

1. All slopes will be ADA compliant

b. Warning panels will be of engineered polymer, placed to meet ADA requirements within ramps

1. Color- Yellow

2. UV Protected

6. Reset manhole (see pictures 7 & 9)

a. Manholes will be set to height of new sidewalk

1. Edges will be even with top edge of manhole

7. Landscaping of edges of sidewalk

a. Use topsoil material that will grow grass

1. Areas will be graded to meet existing grade

2. A minimum of 4” of topsoil will be used

b. Grass seed will be placed and grass growing before contract will be considered completed

1. Watering will be the contractors responsibility

E. Granite Curbing: (1200 lnft appx)

1. Where indicated on attached map place granite curbing

a. Curbing reveal will match existing granite reveal

2. All measurements are to be field verified by contractor

3. Landscaping of edges of new granite curbing

a. Use topsoil material that will grow grass

1. Areas will be graded to meet existing grade

2. A minimum of 4” of topsoil will be used

b. Grass see will be placed and grass growing before contract will be considered completed

1. Watering will be the contractors responsibility

F. Specifications

1. See Section 32 11 23 Aggregate Base Course specs for details

2. See Section 32 12 13 Bituminous Tack and Prime Coat specs for details

3. See Section 32 12 16 Hot Mix Asphalt (HMA) specs for details

4. See Section 32 16 13 Concrete Sidewalk specs for details

5. See Section 32 92 19 Seeding specs for details

The Contractor shall provide all cones, barriers, lights, signs, placards, flags, and flagging personnel necessary to establish an adequate and safe work zone. Controlling traffic in and around the work area while paving and until newly applied markings are dry.

BID OPTION #1:

Provide two (2) electrical conduits, EB Schedule 20 PVC, encased in min 3” of concrete with a sand bed as marked on the site drawing with a pull line and handholds on the ends for future access. Space conduit 3” from each other.

Minimum depth of 24” is required. Length is approx. 205 feet.

CONTRACTOR REQUIREMENTS

1. The Contractor will submit all warrantee information against defects in material and workmanship upon completion of installation.

2. The Contractor will notify DigSafe and have a signed form from CES prior to any excavation.

3. The Contractor is responsible for accuracy of all measurements and the implementation of appropriate building codes. The Contractor must get approval from Civil Engineering Production Control (344-

2441) and/or Engineering (344-2568) before starting work and before any utility shutdowns.

4. The Contractor is responsible for site cleanliness.

5. The Contractor will sign an AF 1354 to signify the acceptance of the project by ANG and authorize the capitalization of the asset.

6. The Contractor shall provide product submittals for materials prior to beginning work. The 109th Civil

Engineering Squadron will review product submittals and return them to the Contractor. Only materials approved by the 109th Civil Engineering Squadron will be used for this project.

7. The contractor shall comply with all applicable installation/facility access and local security policies and procedures, which may be obtained from the Contracting Officer’s Representative (COR). The contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the local installation’s Security Forces, Director of Emergency

Services or local Security Office. The contractor shall ensure compliance with all personal identity verification requirements as directed by DoD, HAF and/or local policy. Should the Force Protection

Condition (FPCON) change, the Government may require changes in contractor security matters or processes.

8. Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and

Terrorist Screening Database (TSDB) (AFI 31-101 and AFI 10-245), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by government representative), or, at OCONUS locations, in accordance with status of forces agreements and other theater regulations.

9. The use and possession of controlled substances to include marijuana (medical or recreational use) on the installation is in violation of Title 10 US Code 912a. Art 112a. Contractors are notified this policy is strictly enforced and violators will be denied entry. Personnel caught on the installation can be prosecuted.

10. In accordance with AFI 10-701, Operations Security, OPSEC PMs/SMO/SMNCOs/Coordinators will provide OPSEC training or training materials to contract employees within 90 days of employees' initial assignment to the contract and annually thereafter. General organizational orientations may need to be supplemented by duty-related orientations in the work center targeted toward specific critical information and vulnerabilities associated with the work. Initial OPSEC training is locally generated and will be provided during badge issue.

11. All contractor employees, to include subcontractor employees, requiring access to Government

Installations, Facilities and Controlled Access areas shall complete locally generated AT training equivalent to AT Level I awareness training within 10 calendar days after contract start date or effective date of incorporation of this requirement into the contract, whichever is applicable.

12. The badging and training process described above is anticipated to take approximately one hour per person.

PROPOSED PROJECT SCHEDULE

The project will begin 14 days following the Notice to Proceed. The project shall be completed within 30 days following the notice to proceed.

Bid O ption #1:

Picture #1: Sidewalk in front of Bldg. #24

-Existing sidewalk

-Sign will be removed and reinstalled on side of new sidewalk

Picture #2: Sidewalk from of Bldg. #24 to Bldg. #43 parking lot

Picture #3: CST Parking Lot

-Island portion will be removed parking lot will be placed -Area that was island will require paint and diagonal lines for no parking

Picture #4: Island picture

-Granite curbing stays

-Concrete curbing and stone removed

-Roadway asphalt will me milled 1 ½” and re-paved

-Remove tree

-Appx location of new sidewalk

Picture #5: Island picture

-Island to be removed -Area that was island will require paint and diagonal lines for no parking -Granite curbing to be removed and reused if possible -Concrete removed by contractor as debris

Picture #6: Upper Island picture

-Remove stone -Appx sidewalk location

Picture #7: Manhole

-Manhole will be even with the top of the new sidewalk

-Appx location of ramp to meet pavement

Picture #8: Island picture

-Island to be removed -Area that was island will require paint and diagonal lines for no parking -Concrete removed by contractor as debris

Picture #9: Manhole across from Bldg. #34

-Manhole to be set to height of new sidewalk

-Tree removed and roots -Sidewalk from parking lot to roadway will be replaced -Sidewalk will be same height of parking lot and roadway

- Sidewalk will ramp up / down from this sidewalk

-Granite curbing to be reused if possible -Reset if needed with new sidewalk

Picture #10: Bldg. #42

-Grade area to have slope of grass area to meet new pavement

Picture #11: Increase size of bollard

-Remove existing bollards -Reset with 6” concrete filled with new foundation

Picture #12: Addition to parking area

-New addition to parking and turning are -Needs to be boxed out -Grass area to be regraded to meet new paved area

Picture #13: Backside of Bldg. #43

-Regrade pavement for better slope -New pavement area

-Older pavement

-Newer pavement

Picture #14: Island in front of Bldg. #25

-Concrete curbing to be removed -Roadway will flow into parking lot -Area that was island will require paint and diagonal lines for no parking -Parking lot will be restriped after paved

-Remove tree

Picture #15: Island in front of Bldg. #25

-Concrete curbing to be removed -Roadway will flow into parking lot -Area that was island will require paint and diagonal lines for no parking -Stone will be removed as debris -Parking lot will be restriped after paved

-Remove tree

-Remove stop sign -Stop line will be painted on new pavement with STOP painted before the line W50S8J-20-B-0001

Picture #16: Sidewalk

-Sidewalk removed -New sidewalk will be sloped to meet new curb and pavement

Picture #17: Reset storm water drain

-Catch basin removed -New catch basin and box will be placed in line with pipe but will be a curb storm drain -Curb will be removed and new granite curb installed -Invert to bottom of storm drain is 49” (appx) to top of grate -New pavement will slope to curb storm drain

SECTION 32 11 23

AGGREGATE BASE COURSE

08/08

PART 1 GENERAL

1.1 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.

AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS

(AASHTO)

AASHTO T 180 (2015) Standard Method of Test for Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and a 457-mm

(18-in.) Drop

AASHTO T 224 (2010) Standard Method of Test for Correction for Coarse

Particles in the Soil Compaction Test

ASTM INTERNATIONAL (ASTM)

ASTM C117 (2013) Standard Test Method for Materials Finer than 75-um (No.

200) Sieve in Mineral Aggregates by

Washing

ASTM C127 (2015) Standard Test Method for Density, Relative Density

(Specific Gravity), and Absorption of

Coarse Aggregate

ASTM C128 (2015) Standard Test Method for Density, Relative Density

(Specific Gravity), and Absorption of Fine

Aggregate

ASTM C131/C131M (2014) Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

ASTM C136/C136M (2014) Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

ASTM C29/C29M (2009) Standard Test Method for Bulk Density ("Unit

Weight") and Voids in Aggregate

ASTM C88 (2013) Standard Test Method for Soundness of Aggregates by Use of

Sodium Sulfate or Magnesium Sulfate

ASTM D1556/D1556M (2015) Standard Test Method for Density and Unit

Weight of Soil in Place by

SECTION 32 11 23 Page 1

Sand-Cone Method

ASTM D1557 (2012; E 2015) Standard Test Methods for Laboratory Compaction

Characteristics of Soil Using Modified

Effort (56,000 ft-lbf/ft3) (2700 kN-m/m3)

ASTM D2167 (2015) Density and Unit Weight of Soil in Place by the Rubber

Balloon Method

ASTM D2487 (2011) Soils for Engineering Purposes (Unified Soil

Classification System)

ASTM D422 (1963; R 2007; E 2014; E 2014)

Particle-Size Analysis of Soils

ASTM D4318 (2010; E 2014) Liquid Limit, Plastic Limit, and

Plasticity Index of Soils

ASTM D5821 (2013) Standard Test Method for Determining the Percentage of Fractured Particles in Coarse

ASTM D6938 (2015) Standard Test Method for In-Place Density and Water

Content of Soil and

Soil-Aggregate by Nuclear Methods (Shallow

Depth)

ASTM D75/D75M (2014) Standard Practice for Sampling Aggregates

ASTM E11 (2015) Wire Cloth and Sieves for Testing Purposes

1.2 DEFINITIONS

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

1.2.1 Aggregate Base Course

Aggregate base course (ABC) is well graded, durable aggregate uniformly moistened and mechanically stabilized by compaction.

1.2.2 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 ASTM D1557 abbreviated as a percent of laboratory maximum dry density. Since ASTM D1557 applies only to soils that have 30 percent or less by weight of their particles retained on the

3/4 inch sieve, the degree of compaction for material having more than 30 percent by weight of their particles retained on the 3/4 inch sieve are expressed as a percentage of the laboratory maximum dry density in accordance with AASHTO T 180 Method D and corrected with AASHTO T 224.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When

SECTION 32 11 23 Page 2 used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-06 Test Reports

Sampling and Testing; G

Field Density Tests; G

1.4 QUALITY ASSURANCE

Sampling and testing are the responsibility of the Contractor and performed by a testing laboratory approved by the Contracting Officer's

Representative. Work requiring testing will not be permitted until the testing laboratory has been inspected and approved. Test the materials to establish compliance with the specified requirements; perform testing at the specified frequency. The Contracting Officer may specify the time and location of the tests. Furnish copies of test results to the Contracting

Officer within 24 hours of completion of the tests.

1.4.1 Sampling

Take samples for laboratory testing in conformance with ASTM D75/D75M.

When deemed necessary, the sampling will be observed by the Contracting

Officer.

1.4.2 Tests

Perform the following tests in conformance with the applicable standards listed.

1.4.2.1 Sieve Analysis

Make sieve analysis in conformance with ASTM C117 and ASTM C136/C136M.

Sieves shall conform to ASTM E11. Particle-size analysis of the soils shall also be completed in conformance with ASTM D422.

1.4.2.2 Liquid Limit and Plasticity Index

Determine liquid limit and plasticity index in accordance with ASTM D4318.

1.4.2.3 Moisture-Density Determinations

Determine the laboratory maximum dry density and optimum moisture content in accordance with ASTM D1557 .

1.4.2.4 Field Density Tests

Measure field density in accordance with ASTM D1556/D1556M, ASTM D2167 or

ASTM D6938. For the method presented in ASTM D6938 check the calibration curves and adjust them, if necessary, using only the sand cone method as described in paragraph Calibration, of the ASTM publication. Tests performed in accordance with ASTM D6938 result in a wet unit weight of soil, and ASTM D6938 shall be used to determine the moisture content of the soil. The calibration curves furnished with the moisture gauges shall also be checked along with density calibration checks as described in

ASTM D6938. The calibration checks of both the density and moisture gauges shall be made by the prepared containers of material method, as described in paragraph Calibration of ASTM D6938, on each different type

SECTION 32 11 23 Page 3 of material being tested at the beginning of a job and at intervals as directed.

a. Submit certified copies of test results for approval not less than 30 days before material is required for the work.

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

c. Submit copies of field test results within 24 hours after the tests are performed.

1.4.2.5 Wear Test

Perform wear tests on ABC course material in conformance with

ASTM C131/C131M.

1.4.2.6 Weight of Slag

Determine weight per cubic foot of slag in accordance with ASTM C29/C29M on the ABC course material.

1.4.3 Testing Frequency

1.4.3.1 Initial Tests

Perform one of each of the following tests, on the proposed material prior to commencing construction, to demonstrate that the proposed material meets all specified requirements when furnished. If materials from more than one source are going to be utilized, this testing shall be completed for each source.

a. Sieve Analysis.

b. Liquid limit and plasticity index.

c. Moisture-density relationship.

d. Wear.

e. Weight per cubic foot of Slag.

1.4.3.2 In Place Tests

Perform each of the following tests on samples taken from the placed and compacted ABC . Samples shall be taken and tested at the rates indicated. Perform sampling and testing of recycled concrete aggregate at twice the specified frequency until the material uniformity is established.

a. Perform density tests on every lift of material placed and at a frequency of one set of tests for every 250 square yards , or portion thereof, of completed area.

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

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

SECTION 32 11 23 Page 4 W50S8J-20-B-0001 as the sieve analysis.

d. Measure the total thickness of the base course at intervals, in such a manner as to ensure one measurement for each 500 square yards of base course. Measurements shall be made in 3 inch diameter test holes penetrating the base course.

1.4.4 Approval of Material

Select the source of the material 30 days prior to the time the material will be required in the work. Tentative approval of material will be based on initial test results. Final approval of the materials will be based on sieve analysis, liquid limit, and plasticity index tests performed on samples taken from the completed and fully compacted course(s).

1.5 ENVIRONMENTAL REQUIREMENTS

Perform construction when the atmospheric temperature is above 35 degrees F.

When the temperature falls below 35 degrees F, protect all completed areas by approved methods against detrimental effects of freezing. Correct completed areas damaged by freezing, rainfall, or other weather conditions to meet specified requirements.

PART 2 PRODUCTS

2.1 PLANT, EQUIPMENT, AND TOOLS

All plant, equipment, and tools used in the performance of the work will be subject to approval before the work is started and shall be maintained in satisfactory working condition at all times. Provide adequate equipment having the capability of producing the required compaction, meeting grade controls, thickness control, and smoothness requirements as set forth herein.

2.2 AGGREGATES

Provide ABC consisting of clean, sound, durable particles of crushed stone, crushed slag, crushed gravel, crushed recycled concrete, angular sand, or other approved material. ABC shall be free of lumps of clay, organic matter, and other objectionable materials or coatings. The portion retained on the No. 4 sieve is known as coarse aggregate; that portion passing the No. 4 sieve is known as fine aggregate.

2.2.1 Coarse Aggregate

Provide coarse aggregates with angular particles of uniform density. When the coarse aggregate is supplied from more than one source, aggregate from each source shall meet the specified requirements and shall be stockpiled separately. Course aggregate material requirements shall comply with

NYSDOT Standard Specification Section 703-02.

2.2.1.1 Aggregate Base Course

ABC coarse aggreage shall comply with NYSDOT Standard Specification

Section.

SECTION 32 11 23 Page 5

2.2.2 Fine Aggregate

Fine aggregates shall be angular particles of uniform density. When the fine aggregate is supplied from more than one source, aggregate from each source shall meet the specified requirements.

2.2.2.1 Aggregate Base Course

ABC fine aggregate shall comply with NYSDOT Standard Specification Section

703-02.

2.2.3 Gradation Requirements

Apply the specified gradation requirements to the completed base course.

The aggregates shall be continuously well graded within the limits specified in TABLE 1. Sieves shall conform to ASTM E11.

TABLE 1. GRADATION OF AGGREGATES

Percentage by Weight Passing Square-Mesh Sieve

Sieve Designation No. 1

Granular Subbase

(NYSDOT 733-04.8 Type 2)

4 inch

2 inch 100

1/4 inch 25-60

No. 40 5-40

No. 200 0-10

NOTE 1: Particles having diameters less than No. 635 shall not be in excess of 3 percent by weight of the total sample tested.

NOTE 2: The values are based on aggregates of uniform specific gravity. If materials from different sources are used for the coarse and fine aggregates, they shall be tested in accordance with ASTM C127 and ASTM C128 to determine their specific gravities. If the specific gravities vary by more than 10 percent, the percentages passing the various sieves shall be corrected as directed by the

Contracting Officer.

2.3 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. The portion of any component or of the completed course passing the No. 40 sieve shall be either nonplastic or have a liquid not greater than 25 and a plasticity index not greater than 5.

SECTION 32 11 23 Page 6

PART 3 EXECUTION

3.1 GENERAL REQUIREMENTS

When the ABC is constructed in more than one layer, clean the previously constructed layer of loose and foreign matter by sweeping with power sweepers or power brooms, except that hand brooms may be used 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. Provide line and grade stakes as necessary for control. Grade stakes shall be in lines parallel to the centerline of the area under construction and suitably spaced for string lining.

3.2 OPERATION OF AGGREGATE SOURCES

Clearing, stripping, and excavating are the responsibility of the

Contractor. Operate the aggregate sources to produce the quantity and quality of materials meeting the specified requirements in the specified time limit. Aggregate sources on private lands shall be conditioned in agreement with local laws or authorities.

3.3 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. Aggregates shall be stockpiled on the cleared and leveled areas designated by the

Contracting Officer to prevent segregation. Materials obtained from different sources shall be stockpiled separately.

3.4 PREPARATION OF UNDERLYING COURSE

Prior to constructing the base course(s), the underlying course or subgrade shall be cleaned of all foreign substances. At the time of construction of the base course(s), the underlying course shall contain no frozen material. The surface of the underlying course or subgrade shall meet specified compaction and surface tolerances. The underlying course shall conform to Section 31 00 00 EARTHWORK . Ruts or soft yielding spots in the underlying courses, areas having inadequate compaction, and deviations of the surface from the requirements set forth herein shall be corrected by loosening and removing soft or unsatisfactory material and by adding approved material, reshaping to line and grade, and recompacting to specified density requirements. For cohesionless underlying courses containing sands or gravels, as defined in ASTM D2487, the surface shall be stabilized prior to placement of the base course(s). Stabilization shall be accomplished by mixing ABC into the underlying course and compacting by approved methods. The stabilized material shall be considered as part of the underlying course and shall meet all requirements of the underlying course. The finished underlying course shall not be disturbed by traffic or other operations and shall be maintained in a satisfactory condition until the base course is placed.

3.5 INSTALLATION

3.5.1 Mixing the Materials

Mix the coarse and fine aggregates in a stationary plant, or in a traveling plant or bucket loader on an approved paved working area. Make adjustments in mixing procedures or in equipment, as directed, to obtain

SECTION 32 11 23 Page 7 true grades, to minimize segregation or degradation, to obtain the required water content, and to insure 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 layers of uniform thickness with an approved spreader. When a compacted layer 8 inches or less in thickness is required, place the material in a single layer. When a compacted layer in excess of 8 inches is required, place the material in layers of equal thickness. No layer shall be thicker than

6 inches or thinner than 3 inches when compacted. The layers shall be so placed that when compacted they will be true to the grades or levels required with the least possible surface disturbance. Where the base course is placed in more than one layer, the previously constructed layers shall be cleaned of loose and foreign matter by sweeping with power sweepers, power brooms, or hand brooms, as directed. Such adjustments in placing procedures or equipment shall be made as may be directed to obtain true grades, to minimize segregation and degradation, to adjust the water content, and to insure an acceptable base course.

3.5.3 Grade Control

The finished and completed base course shall conform to the lines, grades, and cross sections shown. Underlying material(s) shall be excavated and prepared at sufficient depth for the required base course thickness so that the finished base course and the subsequent surface course will meet the designated grades.

3.5.4 Edges of Base Course

The base course(s) shall be placed so that the completed section will be a minimum of 2 feet wider, on all sides, than the next layer that will be placed above it. Additionally, place approved fill material along the outer edges of the base course in sufficient quantities to compact to the thickness of the course being constructed, or to the thickness of each layer in a multiple layer course, allowing in each operation at least a 2 foot width of this material to be rolled and compacted simultaneously with rolling and compacting of each layer of base course. If this base course material is to be placed adjacent to another pavement section, then the layers for both of these sections shall be placed and compacted along this edge at the same time.

3.5.5 Compaction

Compact each layer of the base course, as specified, with approved compaction equipment. 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 in this Section. 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. Alternate trips of the roller shall be slightly different lengths. Speed of the roller shall be such that displacement of the aggregate does not occur. In all places not accessible to the rollers, the mixture shall be compacted with hand-operated power tampers. Continue compaction until each layer has a degree of compaction that is at least 95 percent of laboratory maximum density through the full depth of the layer. Make such adjustments in compacting or finishing procedures as may be directed to obtain true grades, to minimize segregation and

SECTION 32 11 23 Page 8 degradation, to reduce or increase water content, and to ensure a satisfactory base course. Any materials that are found to be unsatisfactory shall be removed and replaced with satisfactory material or reworked, as directed, to meet the requirements of this specification.

3.5.6 Thickness

Construct the compacted thickness of the base course as indicated. No individual layer shall be thicker than 8 inches nor be thinner than 3 inches in compacted thickness. The total compacted thickness of the base course(s) shall be within 1/2 inch of the thickness indicated. Where the measured thickness is more than 1/2 inch deficient, correct such areas by scarifying, adding new material of proper gradation, reblading, and recompacting as directed. Where the measured thickness is more than 1/2 inch thicker than indicated, the course shall be considered as conforming to the specified thickness requirements. Average job thickness shall be the average of all thickness measurements taken for the job, but shall be within 1/4 inch of the thickness indicated. The total thickness of the base course shall be measured at intervals in such a manner as to ensure one measurement for each 500 square yards of base course. Measurements shall be made in 3 inch diameter test holes penetrating the base course.

3.5.7 Finishing

The surface of the top layer of base course shall be finished after final compaction and proof rolling by cutting any overbuild to grade and rolling with a steel-wheeled roller. Thin layers of material shall not be added to the top layer of base course to meet grade. If the elevation of the top layer of base course is 1/2 inch or more below grade, then the top layer should be scarified to a depth of at least 3 inches and new material shall be blended in , compacted and proof rolled to bring to grade.

Adjustments to rolling and finishing procedures shall be made as directed to minimize segregation and degradation, obtain grades, maintain moisture content, and insure an acceptable base course. Should the surface become rough, corrugated, uneven in texture, or traffic marked prior to completion, the unsatisfactory portion shall be scarified, reworked and recompacted or it shall be replaced as directed.

3.5.8 Smoothness

The surface of the top layer shall show no deviations in excess of 3/8 inch when tested with a 12 foot straightedge. Take measurements in successive positions parallel to the centerline of the area to be paved.

Measurements shall also be taken perpendicular to the centerline at 50 foot intervals. Deviations exceeding this amount shall be corrected by removing material and replacing with new material, or by reworking existing material and compacting it to meet these specifications.

3.6 TRAFFIC

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

Heavy equipment shall not be permitted except when necessary to construction, and then the area shall be protected against marring or damage to the completed work.

3.7 MAINTENANCE

Maintain the base course in a satisfactory condition until the full

SECTION 32 11 23 Page 9 pavement section is completed and accepted. Maintenance shall include immediate repairs to any defects and shall be repeated as often as necessary to keep the area intact. Any base course that is not paved over prior to the onset of winter, shall be retested to verify that it still complies with the requirements of this specification. Any area of base course that is damaged shall be reworked or replaced as necessary to comply with this specification.

3.8 DISPOSAL OF UNSATISFACTORY MATERIALS

Dispose of any unsuitable materials that must be removed outside the limits of Government-controlled land . No additional payments will be made for materials that must be replaced.

-- End of Section --

SECTION 32 11 23 Page 10

SECTION 32 12 13

BITUMINOUS TACK AND PRIME COATS

05/17 extent referenced. The publications are referred to within the text by the basic designation only.

AASHTO T 102 (2009; R 2013) Standard Method of Test for Spot Test of

Asphaltic Materials

ASTM INTERNATIONAL (ASTM)

ASTM D1250 (2008) Standard Guide for Use of the Petroleum

Measurement Tables

ASTM D140/D140M (2016) Standard Practice for Sampling Asphalt

Materials

ASTM D2026/D2026M (2015) Cutback Asphalt (Slow-Curing Type)

ASTM D2027/D2027M (2013) Cutback Asphalt (Medium-Curing Type)

ASTM D2028/D2028M (2015) Cutback Asphalt (Rapid-Curing Type)

ASTM D2397/D2397M (2013) Standard Specification for Cationic Emulsified

Asphalt

ASTM D2995 (1999; R 2009) Determining Application Rate of Bituminous

Distributors

ASTM D6373 (2016) Standard Specification for Performance Graded

Asphalt Binder

ASTM D946/D946M (2015) Penetration-Graded Asphalt Cement for Use in

Pavement Construction

ASTM D977 (2013; E 2014) Emulsified Asphalt

U.S. GREEN BUILDING COUNCIL (USGBC)

LEED BD+C (2009; R 2010) Leadership in Energy and Environmental

Design(tm) Building Design and

Construction (LEED-NC)

1.2 SUBMITTALS

SECTION 32 12 13 Page 1 used, a designation following the "G" designation identifies the office

Sampling and Testing

1.3 QUALITY ASSURANCE

Certificates of compliance for asphalt materials delivered will be obtained and checked to ensure that specification requirements are met.

Quantities of applied material will be determined. Tack coat materials will not be diluted. Prime coat materials when emulsions are used can be diluted on site with potable water up to 1 part emulsion to 1 part water.

1.4 DELIVERY, STORAGE, AND HANDLING

Inspect the materials delivered to the site for contamination and damage.

Unload and store the materials with a minimum of handling.

1.5 EQUIPMENT, TOOLS AND MACHINES

1.5.1 General Requirements

Equipment, tools and machines used in the work are subject to approval.

Maintain in a satisfactory working condition at all times. Calibrate equipment such as asphalt distributors, scales, batching equipment, spreaders and similar equipment within 12 months of there use. If the calibration expires during project, recalibrate the equipment before work can continue.

1.5.2 Bituminous Distributor

Provide a self propelled distributor with pneumatic tires of such size and number to prevent rutting, shoving or otherwise damaging the surface being sprayed. Calibrate the distributer in accordance with ASTM D2995. Design and equip the distributor to spray the bituminous material in a uniform coverage at the specified temperature, at readily determined and controlled total liquid rates from 0.03 to 1.0 gallons per square yard, with a pressure range of 25 to 75 psi and with an allowable variation from the specified rate of not more than plus or minus 5 percent, and at variable widths. Include with the distributor equipment a separate power unit for the bitumen pump, full-circulation spray bars, tachometer, pressure gauges, volume-measuring devices, adequate heaters for heating of materials to the proper application temperature, a thermometer for reading the temperature of tank contents, and a hand hose attachment suitable for applying bituminous material manually to areas inaccessible to the distributor. The distributor will be capable of circulating and agitating the bituminous material during the heating process.

1.5.3 Heating Equipment for Storage Tanks

Use steam, electric, or hot oil heaters for heating the bituminous material. Provide steam heaters consisting of steam coils and equipment for producing steam, so designed that the steam cannot come in contact with the bituminous material. Fix an armored thermometer to the tank with a temperature range from 40 to 400 degrees F so that the temperature of

SECTION 32 12 13 Page 2 the bituminous material may be determined at all times.

1.5.4 Power Brooms and Power Blowers

Use power brooms and power blowers suitable for cleaning the surfaces to which the bituminous coat is to be applied.

1.6 ENVIRONMENTAL REQUIREMENTS

Apply bituminous coat only when the surface to receive the bituminous coat is dry. A limited amount of moisture (approximately 0.03 gallon/square yard) can be sprayed on the surface of unbound material when prime coat is used to improve coverage and penetration of asphalt material. Apply bituminous coat only when the atmospheric temperature in the shade is 50 degrees F or above and when the temperature has not been below 35 degrees F for the 12 hours prior to application, unless otherwise directed.

2.1 PRIME COAT

Provide asphalt conforming to one of the following grades:

2.1.1 Emulsified Asphalt

Provide emulsified asphalt conforming to

NYS DOT Standard Specification Section 402-2 and 702. Asphalt emulsion can be diluted up to 1 part water to 1 part emulsion for prime coat use.

Do not dilute asphalt emulsion for tack coat use.

2.2 TACK COAT

Provide asphalt conformaing to NYS DOT Standard Specification Sections

402-2 and 702.

2.2.1 Emulsified Asphalt

Provide emulsified asphalt conforming to

NYS DOT Standard Specification Sections 407 and 702. For prime coats the emulsified asphalt can be diluted with up to 1 part emulsion to 1 part water. No dilution is allowed for tack coat applications. The base asphalt used to manufacture the emulsion is required to show a negative spot when tested in accordance with AASHTO T 102 using standard naphtha.

3.1 PREPARATION OF SURFACE

Immediately before applying the bituminous coat, remove all loose material, dirt, clay, or other objectionable material from the surface to be treated by means of a power broom or blower supplemented with hand brooms. Apply treatment only when the surface is dry and clean.

3.2 APPLICATION RATE

The exact quantities within the range specified, which may be varied to suit field conditions, will be determined by the Contracting Officer.

SECTION 32 12 13 Page 3

3.2.1 Tack Coat

Apply bituminous material for the tack coat in accordance with

NYS DOT Standard Specification. Do not dilute asphalt emulsion when used as a tack coat.

3.2.2 Prime Coat

Apply bituminous material for the prime coat in quantities of not less than

0.05 gallons nor more than 0.12 gallons per square yard of residual asphalt for asphalt emulsion up to a 1 to 1 dilution rate.

3.3 APPLICATION TEMPERATURE

3.3.1 Viscosity Relationship

Apply asphalt at a temperature that will provide a viscosity between 10 and 60 seconds, Saybolt Furol, or between 20 and 120 centistokes, kinematic. Furnish the temperature viscosity relation to the Contracting

Officer.

3.3.2 Temperature Ranges

The viscosity requirements determine the application temperature to be used. The following is a normal range of application temperatures:

Asphalt Emulsion

All Grades 70-160 degrees F

Some of these temperatures for rapid cure cutbacks are above the flash point of the material and care should be taken in their heating.

3.4 APPLICATION

3.4.1 General

Following preparation and subsequent inspection of the surface, apply the bituminous prime or tack coat with the bituminous distributor at the specified rate with uniform distribution over the surface to be treated.

Properly treat all areas and spots, not capable of being sprayed with the distributor, with the hand spray. Until the succeeding layer of pavement is placed, maintain the surface by protecting the surface against damage and by repairing deficient areas at no additional cost to the Government.

If required, spread clean dry sand to effectively blot up any excess bituminous material. No smoking, fires, or flames other than those from the heaters that are a part of the equipment are permitted within 25 feet of heating, distributing, and transferring operations of cutback materials. Prevent all traffic, except for paving equipment used in constructing the surfacing, from using the underlying material, whether primed or not, until the surfacing is completed. The bituminous coat requirements are described herein.

3.4.2 Prime Coat

The prime coat is required if it will be at least 7 days before the asphalt mixture is constructed on the underlying (base course, etc.)

compacted material. The type of liquid asphalt and application rate will

SECTION 32 12 13 Page 4 be as specified herein. Protect the underlying layer from any damage

(water, traffic, etc.) until the surfacing is placed. If the Contractor places the surfacing within seven days, the choice of protection measures or actions to be taken is at the Contractor's option. Repair (recompact or replace) damage to the underlying material caused by lack of, or inadequate, protection by approved methods at no additional cost to the

Government. If the Contractor opts to use the prime coat, apply as soon as possible after consolidation of the underlying material. Apply the bituminous material uniformly over the surface to be treated at a pressure range of 25 to 75 psi; the rate will be as specified above in paragraph

APPLICATION RATE. To obtain uniform application of the prime coat on the surface treated at the junction of previous and subsequent applications, spread building paper on the surface for a sufficient distance back from the ends of each application to start and stop the prime coat on the paper and to ensure that all sprayers will operate at full force on the surface to be treated. Immediately after application remove and destroy the building paper.

3.4.3 Tack Coat

A tack coat should be applied to every bound surface (asphalt or concrete pavement) that is being overlaid with asphalt mixture and at transverse and longitudinal joints. Apply the tack coat when the surface to be treated is clean and dry. Immediately following the preparation of the surface for treatment, apply the bituminous material by means of the bituminous distributor, within the limits of temperature specified herein and at a rate as specified above in paragraph APPLICATION RATE. Apply the bituminous material so that uniform distribution is obtained over the entire surface to be treated. Treat lightly coated areas and spots missed by the distributor by spraying with a hand wand or using other approved method. Following the application of bituminous material, allow the surface to cure without being disturbed for period of time necessary to permit setting of the tack coat. Apply the bituminous tack coat only as far in advance of the placing of the overlying layer as required for that day's operation. Maintain and protect the treated surface from damage until the succeeding course of pavement is placed.

3.5 CURING PERIOD

Following application of the bituminous material and prior to application of the succeeding layer of asphalt mixture allow the bituminous coat to cure and water or volatiles to evaporate prior to overlaying. Maintain the tacked surface in good condition until the succeeding layer of pavement is placed, by protecting the surface against damage and by repairing and recoating deficient areas. Allow the prime coat to cure without being disturbed for a period of at least 48 hours or longer, as may be necessary to attain penetration into the treated course. Furnish and spread enough sand to effectively blot up excess bituminous material.

3.6 FIELD QUALITY CONTROL

Obtain certificates of compliance for all asphalt material delivered to the project. Obtain samples of the bituminous material under the supervision of the Contracting Officer. The sample may be retained and tested by the Government at no cost to the Contractor.

3.7 SAMPLING AND TESTING

Furnish certified copies of the manufacturer's test reports indicating

SECTION 32 12 13 Page 5 temperature viscosity relationship for cutback asphalt or asphalt cement, compliance with applicable specified requirements, not less than 5 days before the material is required in the work.

3.7.1 Sampling

Unless otherwise specified, sample bituminous material in accordance with

ASTM D140/D140M.

3.7.2 Calibration Test

Furnish all equipment, materials, and labor necessary to calibrate the bituminous distributor. Calibrate using the approved job material and prior to applying the bituminous coat material to the prepared surface.

Calibrate the bituminous distributor in accordance with ASTM D2995.

3.7.3 Trial Applications

Before applying the spray application of tack, apply three lengths of at least 50 feet for the full width of the distributor bar to evaluate the amount of bituminous material that can be satisfactorily applied.

3.7.3.1 Tack Coat Trial Application Rate

Unless otherwise authorized, apply the trial application rate of bituminous tack coat materials in the amount of 0.05 gallons per square yard. Make other trial applications using various amounts of material as may be deemed necessary.

3.7.4 Sampling and Testing During Construction

Perform quality control sampling and testing as required in paragraph

FIELD QUALITY CONTROL.

3.8 TRAFFIC CONTROLS

Keep traffic off surfaces freshly treated with bituminous material.

Provide sufficient warning signs and barricades so that traffic will not travel over freshly treated surfaces.

SECTION 32 12 13 Page 6

SECTION 32 12 16

HOT-MIX ASPHALT (HMA) FOR ROADS

08/09 the basic designation only.

AASHTO M 156 (2013) Standard Specification for Requirements for Mixing

Plants for Hot-Mixed, Hot-Laid

Bituminous Paving Mixtures

AASHTO M 320 (2016) Standard Specification for Performance-Graded

Aspha…