ULDF150410A_-_SOW_ _Drawings.pdf

SERVICES PARKING LOT STRIPING AND PAVEMENT

MARKINGS

PREPARED BY AFRL/RIOC

AIR FORCE RESEARCH LABORATORY

ROME RESEARCH SITE

ROME, NEW YORK

PROJECT NR: ULDF 150410A DATED: 12 June 2015

PROJECT REQUIREMENTS

1.01 SCOPE

Re-stripe existing crosswalks, pavement markings, and parking spaces across the entire site. Match existing layout of pavement markings as shown in the attached drawings. Perform several full-depth asphalt patches on indicated areas shown on drawings as well as milling and overlaying delaminated pavement and repairing the damaged traffic circle.

1.02 ITEMS OF WORK

A. Execute full depth asphalt patch at indicated areas shown on Drawing #2.

-The new pavement is to be level with the existing pavement. All full depth patches are to be joint sealed when completed.

-Reference Drawing #10 for cross section of pavement application.

B. Mill and overlay delaminated asphalt pavement indicated in Drawing #2

- Mill the top 1 ½” of top course off the damaged delaminating pavement.

- Clean the new asphalt surface and prepare it for a new 1 ½” top course overlay.

- The new pavement is to be level with the existing pavement. All joints to be sealed when completed.

- Reference Drawing #8 for cross section of pavement application.

C. Repair damage catch basin

-Lift sunken catch basin back up to grade level indicated on Drawing #2.

-Reference Drawing #8 for cross section of catch basin drain.

D. Re-stripe all parking spaces

-Including all Handicap markings and spot lettering for Building 3 visitors and police parking as indicated on Drawing #3 and #4

- Use existing parking layout as a template for new striping.

E. Re-stripe indicated crosswalks and miscellaneous pavement markings

- Use existing crosswalks and miscellaneous pavement markings as a template for new pavement makings as indicated on Drawing #5 and #6.

F. Repair damaged traffic circle indicated on Drawing #7.

-Remove all damaged Versa-lock blocks.

- Excavated earth to allow enough room to replace Versa-lock blocks.

-Reuse as many dislocated versa-lock blocks as possible. All new blocks are to match the existing blocks.

- Install new polypropylene stabilization fabric, and fill area back in with the earth previously excavated.

-Hydroseed affected area disturbed during excavation.

G. Replace damage sidewalk sections indicated on Drawing #7.

-All new sidewalk sections are to match and be level to the existing sidewalk.

-All new sidewalk slabs are to be six (6) inches thick.

- All new sidewalk slabs to have broom finished surface.

-Reference Drawing #8 for cross section of new concrete sidewalk.

H. All striping and crack sealing work are to be performed during non-duty hours. That is, work is not to be performed Monday through Friday, 0600 to 1800 hours. All other work can be performed during normal duty hours.

1.03 PRODUCTS

A. Aggregates

1. General: Use materials and gradations that have performed satisfactorily in previous installations.

2. Coarse Aggregate: ASTM D 692, sound; angular crushed stone, crushed gravel, or cured, crushed blast-furnace slag.

3. Fine Aggregate: ASTM D 1073, sharp-edged natural sand or sand prepared from stone, gravel, cured blast-furnace slag, or combinations thereof.

a. For hot-mix asphalt, limit natural sand to a maximum of 20 percent by weight of the total aggregate mass.

B. Asphalt Materials

1. Asphalt Binder: AASHTO M 320 or AASHTO MP 1a, PG 58-28.

2. Asphalt Cement: ASTM D 3381 for viscosity-graded material.

3. Tack Coat: ASTM D 977 emulsified asphalt, or cationic emulsified asphalt, slow setting, diluted in water, of suitable grade and consistency for application. Comply with the requirements of NYSDOT Tack Coat, Section 407, Item Number 407.01M.

4. Water: Potable.

C. Joint/Crack Sealant

1. Joint and Crack Sealant: ASTM D 6690, Type II or III, hot-applied, single-component, polymer-modified bituminous sealant.

D. Mixes

1. Hot-Mix Asphalt: Dense, hot-laid, hot-mix asphalt plant mixes approved by NYSDOT, designed according to NYSDOT Design and Construction Division “Standard Specifications” dated January 2, 2002 and complying with the following requirements:

a. Provide mixes with a history of satisfactory performance in geographical area where Project is located.

b. Base Course: Comply with the requirements of NYSDOT, Type 1, Base Course, Section 401, Item 403.118902M.

c. Binder Course: Comply with the requirements of NYSDOT, Type 3 Dense Binder, Section 401, Item 403.138902M.

d. Top Course: Comply with the requirements of NYSDT, Type 7 Top Course, Section 401, Item 403.198902M.

2. Emulsified-Asphalt Slurry: ASTM D 3910, Type 2.

1.04 EXECUTION

A. Examination

1. Verify that sub-base is dry and in suitable condition to begin paving.

2. Proof-roll sub-base below pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding. Do not proof-roll wet or saturated subgrades.

a. Completely proof-roll subgrade in one directions, repeating proof-rolling in direction perpendicular to first direction. Limit vehicle speed to 3 mph (5 km/h).

b. Excavate soft spots, unsatisfactory sub-base, and areas of excessive pumping or rutting, as determined by Engineer, and replace with compacted sub-base material as directed to 95% compaction.

3. Proceed with paving only after unsatisfactory conditions have been corrected.

B. Surface Preparation

1. General: Immediately before placing asphalt materials, remove loose and deleterious material from sub-base surfaces. Ensure that prepared sub-base is ready to receive paving.

a. Protect primed substrate from damage until ready to receive paving.

b. Tack Coat: Apply uniformly to surfaces of existing pavement at a rate of 0.05 to 0.15 gal./sq. yd. (0.2 to 0.7 L/sq. m).

c. Allow tack coat to cure undisturbed before applying hot-mix asphalt paving.

d. Avoid smearing or staining adjoining surfaces, appurtenances, and surroundings. Remove spillages and clean affected surfaces.

C. HMA Placing

1. Place the asphaltic concrete in strict accordance with the provisions of Section 401 through 405 of NYSDOT Standards.

2. Machine place hot-mix asphalt on prepared surface, spread uniformly, and strike off.

Place asphalt mix by hand to areas inaccessible to equipment in a manner that prevents segregation of mix. Place each course to required grade, cross section, and thickness when compacted.

a. Place hot mix asphalt base course in number of lifts and thicknesses indicated.

b. Place hot-mix asphalt binder course in number of lifts and thicknesses indicated.

c. Place hot-mix asphalt top course in single lift.

d. Spread mix at minimum temperature of 250 deg. F (121 deg. C).

e. Begin applying mix along centerline of crown for crowned sections and on high side of one-way slopes unless otherwise indicated.

f. Regulate paver machine speed to obtain smooth, continuous surface free of pulls and tears in asphalt-paving mat.

D. Compaction

1. General: Begin compaction as soon as placed hot-mix paving will bear roller weight without excessive displacement. Compact hot-mix paving with hot, hand tampers or with vibratory-plate compactors in areas inaccessible to rollers.

a. Complete compaction before mix temperature cools to 185 deg. F (85 deg. C).

E. Installation Tolerances

1. Pavement Thickness: Compact each course to produce the thickness Indicated within the following tolerances:

a. Binder Course: Plus or minus 1/4 inch (6 mm).

b. Top Course: Plus 1/4 inch (6 mm), no minus.

1. Pavement Surface Smoothness: Compact each course to produce a surface smoothness within the following tolerances as determined by using a 10-foot (3-m) straightedge applied transversely or longitudinally to paved areas:

a. Binder Course: 1/4 inch (6 mm).

b. Top Course: 1/8 inch (3 mm).

F. Field Quality Control

1. Thickness: In-place compacted thickness of hot-mix asphalt courses will be determined according to ASTM D 3549.

G. Disposal

1. Except for material indicated to be recycled, remove excavated materials from Project site and legally dispose of them in an EPA-approved landfill.

a. Do not allow milled materials to accumulate on-site.