Attachment_J.7_-_G-K_Road-TECHNICAL_SPECIFICATION_FOR_MARKING_AND_TRAFFIC_SIGNS.pdf

Attachment J.7: Gardez to Khost (G-K) Road Section 2 Pavement Marking and Signage Installation

TECHNICAL SPECIFICATION FOR MARKING AND TRAFFIC SIGNS

TECHNICAL SPECIFICATION FOR MARKING AND TRAFFIC SIGNS

Table of Contents

Document Sections Page

PART-1 GENERAL

1.1 RETROREFLECTIVE SHEETING…………………………………………..… 2

1.2 STEEL PANELS………………………………………………………………. 2

1.3 ALUMINUM PANELS………………………………………………………… 2

1.4 EXTRUDED ALUMINUM PANELS…………………………………………... 2

1.5 SIGNPOSTS…………………………………………………………………… 2

1.6 OBJECT MARKER AND DELINEATOR POSTS…………………………….. 3

1.7 HARDWARE…………………………………………………………………. 3

1.8 LETTERS, NUMERALS, ARROWS, SYMBOLS, AND BORDERS…………… 3

1.9 DELINEATOR AND OBJECT MARKER RETROREFLECTORS…………….. 4

1.10 CONVENTIONAL (SOLVENTBORNE) TRAFFIC PAINT………………… 5

1.11 WATERBORNE TRAFFIC PAINT…………………………………………... 5

1.12 EPOXY MARKINGS…………………………………………………………. 6

1.13 POLYESTER MARKINGS…………………………………………………….. 7

1.14 THERMOPLASTIC MARKINGS……………………………………………… 7

1.15 PREFORMED PAVEMENT MARKING TAPE……………………………….. 7

1.16 GLASS BEADS………………………………………………………………... 7

1.17 RAISED PAVEMENT MARKERS……………………………………………… 8

1.18 TEMPORARY PAVEMENT MARKINGS…………………………………….. 8

1.19 TEMPORARY TRAFFIC CONTROL DEVICES………………………………. 8

1.20 EPOXY RESIN ADHESIVES……………………………………………………. 8

1.21 CONCRETE FOR SIGN POSTS’ PEDESTALS…………………………………. 9

Attachment J.7_Gardez to Khost (G-K) Road Section 2 Pavement Marking and Signage Installation

PART 1 – GENERAL

1.1 RETROREFLECTIVE SHEETING

A. The retroreflective sheeting must confirm to ASTM D 4956 including Supplemental Requirement SI, Fungus Resistance, if specified. For reboundable retroreflective sheeting, conform to ASTM D4956 including Supplemental Requirement S2, Reboundable Sheeting Requirements. When an adhesive is used, it must conform to ASTM D4956, backing class 1, 2, or 3.

1.2 STEEL PANELS

Furnish 0.079-inch (2-millimeter) continuous coated (galvanized) steel sheet blanks confirming to ASTM

A653. Mil phosphatize the Zinc coating (designation G 90) to a thickness of 0.0035-0.0075 ounces per square foot of surface area. Furnish panels with a substantially plane surface. Do not use twisted or buckled panels and or blanks with grooves. Clean, degrease or otherwise prepare the panels according to methods recommended by the sheeting manufacturer.

1.3 ALUMINUM PANELS

A. If Aluminum panels are used, it must conform to ASTM B209, alloy 6061-T6 or 5052-H38. Fabricate all temporary panels and those permanent panels that are 30 by 30 inches or smaller (750 by 750 millimeters) from 0.080-inch (2-millimeter) thick aluminum sheets. Fabricate larger permanent panels from 0.125-inch (3-millimeter) thick aluminum sheets.

B. The blanks shall be free from laminations, blisters, open seams, pits, holes, or other defects that may affect their appearance or use. The thickness shall be uniform and the blank must be commercially flat. Perform shearing, cutting, and punching before preparing the blanks for application of reflective material.

C. Clean, degrease, and chromate the blanks or otherwise properly prepare the panels according to methods recommended by the sheeting manufacturer.

1.4 EXTRUDED ALUMINUM PANELS

A. Furnish panels conforming to ASTM B 221, aluminum alloy 6063-T6. For panel thickness and fabrication, conform to ASTM B 209, alloy 6061-T6 or 5052-H38. Conform to sub-section 1.3 for panel thickness and fabrication. The maximum allowable deviation from flat on the face is 0.05 inches per foot.

1.5 SIGNPOSTS

A. Furnish steel, or aluminum signposts as specified.

1. Galvanized Steel Posts: Furnish flanged, channel, hot-dipped galvanized posts that are straight, smooth, and free from defects affecting strength, durability, or appearance, confirming ASTM A499, Grade 60 (420) and the following requirements.

2. U-Channel Or Omega (Ω) Section Steel Post: Furnish flanged, channel, galvanized steel posts conforming to ASTM A 499, grade 60 (420), and the following characteristics:

a) Dimensions of U cross-section or (Ω) section

1) Width of opened end of U including flanges 76.20-88.90 mm

2) Width of closed end of U 25.40-40.64 mm

3) Depth of U or Ω 50.80-63.50 mm

4) Thickness of steel (wall thickness) 5.00-6.00 mm

b) Punching: Starting 1 inch (25 millimeters) from the top and extending the full length of the post drill or punch 3/8-inch (10-millimeter) holes on 1-inch (25 millimeters) centers along the centerline of the bottom of the U or Ω sections. Remove all burrs and sharp edges.

c) Galvanizing after punching: After punching galvanizing process shall meet requirements of AASHTO M111.

3. Square Tubular Steel Posts:

Furnish square tubular galvanized steel posts conforming to ASTM A1011, grade 55. (380)

Or ASTM A715, grade 60, and the following:

a) Dimensions:

1) Outside dimensions 60 by 60 mm

2) Wall thickness 5.00- 6.00 mm

b) Punching: Starting 1 inch (25 millimeters) from the top and extending the full length of the post, drill or punch 7/16-iuch (11-millimeter) holes on 1-inch centers along the centerline of all four sides, in true alignment and opposite each other directly and diagonally. Remove all burrs and sharp edges.

4. Galvanizing after punching (inside and outside of post): Shall conform to ASTM A123 or

ASTM B695.

5. Aluminum Posts: Furnish approved standard shapes and thicknesses conforming to ASTM

B221, alloy 6061-T6, 6351-T5 and 6063-T6 or 6005-T5.

6. Corrosion Resistant Steel Posts: Furnish posts conforming to ASTM A588 or ASTM

A242. Zinc-coat the embedded portion of the corrosion resistant steel post according to

ASTM A123.

1.6 OBJECT MARKER AND DELINEATOR POSTS

A. Furnish wood, steel, or aluminum object marker and delineator posts as follows:

1. Wood posts: Furnish 4 by 4-iuch (100 by 100-millimeter) wooden posts conforming to SP14 subsection 718.08 and below.

2. Steel posts: Furnish flanged U-channel steel posts weighing not less than 2 pounds per foot and conforming to ASTM A36. Galvanize the posts according to AASHTO M111.

3. Aluminum posts: Furnish standard shaped 1/8-inch (8-millimeters) thick aluminum posts conforming to ASTM B 221, alloy 356.0-T6.

1.7 HARDWARE

For lag screws, washers, clip angles, wood screws, shear plates, U-bolts, clamps, bolts, nuts, and other fasteners, use galvanized steel or aluminum alloy.

1. Steel nuts, bolts and washers: For high-strength steel bolts, nuts, and washers shall conform to ASTM A307, or AASHTO M164 or M253 as specified. Galvanize steel hardware according to AASHTO M232.

2. Aluminum nuts, bolts and washers: For aluminum nuts, bolts and washers, conform to either AASHTO-AGC-ARTBA a guide to standardized Highway Barrier Hardware, Or

American standard heavy hexagon ANSI B18.2. For threads conform to American standard coarse series, class 2 fit, ANSI specification B1.1.

1.8 LETTERS, NUMERALS, ARROWS, SYMBOLS, AND BORDERS:

A. Wording on the Sign boards shall be in English and Pashto languages. Colors shall meet Government of Afghanistan (GOA) approved colors (Contractor shall get confirmation from Afghanistan Traffic

Department) or as specified in the design drawings and in the contract and shall conform to ASTM

D4956, subsection 1.1 of section 3400001of this document or subsection 718.01 of FP-14.

Supplemental Requirement SI, Fungus Resistance. For reboundable retroreflective sheeting, conform to ASTM D4956 including Supplemental Requirement S2, Reboundable Sheeting Requirements.

Adhesives shall conform to ASTM D4956, backing class 1, 2, or 3. Form letters, numerals and other units to provide a continuous stroke width with smooth edges. Make the surface flat and free of warp, blisters, wrinkles, burrs, and splinters. Confirm to one of the following:

1. Type L-1 (Screen Process): Apply letters, numerals, arrows, symbols, and borders on the retroreflective sheeting or opaque background of the sign by direct or reverse screen process. Apply messages and borders of a color darker than the background to the paint or the retroreflective sheeting by direct process. Produce messages and borders of a color lighter than sign background by the reverse screen process.

Use opaque or transparent colors, inks, and paints in the screen process of the type and quality recommended by the retroreflective sheeting manufacturer.

Perform the screening in a manner that result in a uniform color and tone, with sharply-defined edges of legends and borders, and without blemishes on the sign background that will affect intended use.

Air dry or bake the signs after screening according to manufacturer's recommendations to provide a smooth hard finish. Any signs with blisters or other blemishes will be rejected.

2. Type L-3 (Direct Applied Characters): Cut letters, numerals, symbols, borders, and other features of the sign message from the type and color of the retroreflective sheeting specified, and apply to the sign background's retroreflective sheeting according to the retroreflective sheeting manufacturer's instructions. For the retroreflective sheeting minimum coefficient of retro reflection (RA), conform to AASHTO M268.

1.9 DELINEATOR AND OBJECT MARKER RETROREFLECTORS:

Furnish type I or type 2 retroreflectors that are ready for mounting. Furnish antitheft hardware for mounting as required.

1. Type 1 (Acrylic Plastic Lens): Furnish an acrylic plastic lens with a minimum dimension of 3 inches (75 millimeters) with prismatic optical elements and a smooth, clear, transparent face.

Fabricate the back from similar material and fuse it to the lens around the entire perimeter to form a homogenous unit. Seal the units against the intrusion of foreign material. Conform to Table 718-1(SP14) regardless of the orientation angle.

Table 718-1

Minimum Coefficient of (Retroreflective)

Luminous Intensity (RI) (1)

Candelas per Foot-candle

Observation

Angle

Entrance

Angle White(2) Yellow Red

0.1° 0° 115 70 30

0.1° 20° 45 25 12

Candelas per Lux

Observation

Angle

Entrance

Angle White(2) Yellow Red

0.1° 0° 10.7 6.5 2.8

0.1° 20° 4.2 2.3 1.1

(1) See AASHTO T 257.

(2) Crystal, clear, or colorless are acceptable color designations.

Mount the retroreflector unit in housing fabricated from 0.063-inch (1.6-millimeter) ASTM B2019, aluminum alloy 3003-H-14 or similar, or from cold rolled, hot dip, galvanized steel, having a thickness of

0.064-inches (1.6-millimeter). Provide antitheft attachment hardware.

2. Type 2 (Retroreflective Sheeting): Furnish a fungus resistant prismatic retroreflective sheeting with a minimum dimension of 3-inches (75-millimeter), type III, V, VII, VIII, or IX retroreflective sheeting with a class 1 or 2 adhesive backing conforming to ASTM D4956.

Attach the sheeting to an aluminum or plastic support panel (target plate) of the size and dimension specified.

1.10 CONVENTIONAL (SOLVENTBORNE) TRAFFIC PAINT:

The traffic paint shall conform to AASHTO M 248, Type N or Type F, traffic paint. Use volatile organic content (VOC) compliant solvent borne paint with a VOC of 0.134 ounces per gallon (150grams per liter) or less. Yellow pigment must be without lead, chrome, and other heavy metals as defined by

United States Environmental Protection Agency | US EPA.

1.11 WATERBORNE TRAFFIC PAINT:

Furnish an acrylic water-based, ready-mixed paint for use on asphalt and rigid pavements conforming to the following:

A. Composition: Furnish paint composed of resin solids of 100 percent acrylic polymer with the exact formulation determined by the manufacturer. Conform to the following:

1. Pigment,%, ASTM D3723 45%-55% by mass

2. Lead, chromium, cadmium, or barium ASTM D3335 & D3718 0% by mass

3. Volatile organic compounds, EPA Method 24 or ASTM D2369 20.0 oz. per gallon

(150 g/L) max

4. Mass of paint, ASTM D1475 12.0 pounds/gallon

(1.44 kg/L) Minimum

B. Viscosity: Shall conform to ASTM D562 75-90 Krebs units

C. Drying time:

1) Dry to no pickup, ASTM D711 10 minutes max

2) Drying to no track, ASTM D713 90 seconds max.

Type 1 waterproofed glass beads, 15+/-1 mil wet film thickness at 130 °F

D. Flexibility: Shall conform to ASTM D522, using the 1/4-inch (6.4-mm), No cracking or flaking cylindrical mandrel.

E. Dry opacity: Shall confirm to ASTM D2805, contrast ratio at 0.96 min

319 ft2/ gallon (7.85m2/ L) spreading rate.

F. Color:

1. White, ASTM Dl 729 Match FMWH standard highway white

1. Yellow, ASTM D1729 Match FMWH standard highway yellow

G. Daylight reflectance: (Without glass beads)

1. White, ASTM E1347 84% relative to

Magnesium Oxide

Standard

2. Yellow, ASTM E1347 55%relative to

Magnesium Oxide standard

H. Bleeding ratio: ASTM D868 0.96 min.

Determine reflectance according to ASTM D1347 immediately after drying.

Divide the average of 3 reflectance readings of the paint over the bleeding surface by the average of 3 readings over the non-bleeding surface to determine the bleeding ratio.

I. Scrub resistance: Conform to ASTM D2486 300 cycles min

J. Freeze-thaw Stability: Conform to ASTM D2243

1. Change in viscosity +/-5 Krebs units Max.

2. Decrease in scrub resistance -10% max

K. Storage stability: During a 12-month storage period, conform to the following:

1. No excessive setting, caking, or increase in viscosity; and

2. Readily stirred to a consistency for use in the striping equipment.

1.12 EPOXY MARKINGS:

Furnish a 2-component, 100 percent solids type system for hot-spray application conforming to the following:

A. Pigments: Component A. Percent by mass.

1. White:

a. Titanium dioxide (TiO2): 18% Minimum

Conform to ASTM D476, type II and type III

b. Epoxy resin: Conform to ASTM D1652 75 to 82 %

2. Yellow:

a. Chrome yellow (PbCrO4): 23% Minimum

Conform to ASTM D126, type III

b. Epoxy resin: Conform to ASTM D1652 70 to77%

3. Non-Lead Yellow:

a. Titanium dioxide (TiO2): 14% Minimum

Conform to ASTM D476, type II, type III.

b. Organic yellow 7% to 8%

c. Epoxy resin 75% to 79%

B. Epoxy content: Component A. Manufacturer’s

Target

Mass per epoxy equivalent, conforming to ASTM D1652 Value +/-50

C. Amine value: Component B, Manufacturer’s

ASTM D2074 Target

Value +/-50

D. Toxicity: Toxic or injurious fumes at application temperature None

E. Color: 15 mil (0.38 millimeter) film thickness specimens (cured).

1. White, ASTM D1729 Match FHWA standard highway

White

2. Yellow, ASTM D1729 Match FHWA standard highway yellow

F. Directional reflectance: (Without glass beads) 84%relative to

1. White, ASTM E1347 Magnesium oxide standard

2. Yellow, ASTM E1347 55%relative to

Magnesium oxide standard

G. Drying time: 15-mil (0.38-millimeter) film thickness with beads.(cured)

1. Laboratory at 72 °F (22 °C), ASTM D711 30-minutes max to no-pick-up condition

2. Field at 77 °F (25 °C), viewed from 50 feet (15 m) 10 minutes max to no-tracking condition

H. Abrasion resistance: Wear index with a CS-17 wheel under and 82 max a 35.3 oz. (1000 g) load for 1000 cycles, ASTM D4060

I. Hardness: Type D hardness with 72-96 hour cure at 72 °F, 75 to 100

ASTM D2240

J. Storage: When stored for up to 12 months, individual Epoxy components shall not require mixing before use.

1.13 POLYESTER MARKINGS: Furnish a 2-componenl system conforming to the following:

A. Directional reflectance: (Without glass beads)

1. White, ASTM E1347 80% relative to

Magnesium oxide standard

2. Yellow, ASTM E1347 55%relativre to

Magnesium oxide standard

B. Color:

1. White, ASTM D1729 Match FHWA standard Highway

White

2. Yellow, ASTM D1729 Match FHWA standard Highway

Yellow

C. Viscosity: Un-catalyzed polyester at 25 °F, ASTM D562 70 to 90 Krebs units

D. Bleeding: Conform to ASTM D 969 6 Minimum

E. Drying Time: Viewed from 50 feet 45 Minutes max to

No-pick- up condition

1.14 THERMOPLASTIC MARKINGS: Conform to AASHTO M249. To be applied with extrusion, follow standard application requirements; including, surface cleaning, dust blowing. 20% glass beads mixed and further applied on freshly applied marking for immediate retroreflectivity achievement. Marking shall be applied in (2-3) mm thick layer of extruded hot melt thermoplastic. The offeror shall consider thermoplastic marking option while proposing on marking work.

1.15 PREFORMED PAVEMENT MARKING TAPE: Conform to ASTM D4505, type I, V, VI, or VII, grade A, B, C, D or E.

1.16 GLASS BEADS: Conform to AASHTO M247 for the type specified. Table1, Gradation of Glass Beads in AASHTO M247 is supplemented by Table 1.16 below. Treat glass beads with an adherence coating as recommended by manufacturer.

Table 1.16 Gradations of Glass Beads

Sieve Size

Percent by Mass Passing Designated

Sieve (ASTM D 1214)

Grading Designation

Type 3 Type 4 Type 5

No.8 100

No.10 100 95-100

No.12 100 95-100 80-95

No.14 95-100 80-95 10-40

No.16 80-95 10-40 0-5

No.18 10-40 0-5 0-2

No.20 0-5 0-2

No.25 0-2

For type 3, 4, and 5 glass beads, also conform to the following:

A. Treat beads with a reactive adherence coating as recommended by the manufacturer.

B. Roundness, FLH T 520 70% Min. per sieve size

C. Refractive index, AASHTO M247 1.50-1.55

1.17 RAISED PAVEMENT MARKERS:

A. Non-Plow able Extended Life, Retroreflective Pavement Markers: Conform to ASTM D4280.

B. Plow able, retroreflective, pavement markers: Conform to ASTM D4383.

C. Non-reflective Pavement Markers: Furnish ceramic, plastic, or thermoplastic markers that are

4+/- 1/8 inch (100 +/- 3 millimeters) in diameter at the base, 11/16 +/-1/16 inch (17.5+/-1.6 millimeters) in height, and where the base of the marker does not deviate from a flat by more than 1/16 inch (1.6 millimeter)

1.18 TEMPORARY PAVEMENT MARKINGS:

A. Preformed Retroreflective Tape: Furnish 4-inch (100-millimeter) wide tape conforming to

ASTM D4592, type I (removable).

B. Raised pavement markers: Furnish an L-shaped polyurethane marker body with retroreflective tape on both faces of the vertical section, capable of retro reflecting light from opposite directions, and with an adhesive on the base. OR conform to below:

Furnish temporary pavement markers conforming to ASTM D4280, or flexible pavement markers not exceeding approximately 2 inches (50 millimeters) high, with retroreflective tape on both faces of the vertical section, capable of retro reflecting light from opposite directions, and with an adhesive on the base. Provide a minimum coefficient of retro reflection of 1200 candela per lux per square meter at 0.1- degree observation angle and -4 degrees entrance angle. Fabricate the marker body from 60-mil minimum thickness polyurethane. Fabricate the vertical leg about 2 inches high by about 4 inches wide. Fabricate the base for the marker body about 1 1/8 inches wide. Apply a 125-mil minimum thickness and 750-mil wide pressure sensitive adhesive to the marker base and protect it with release paper. If approved, variations in design and dimensions will be permitted to meet manufacturer's standards.

C. Traffic Paint: conform to sub-sections 1.10 and 1.11 above.

1.19 TEMPORARY TRAFFIC CONTROL DEVICES: Use suitable commercial grade material for the fabrication of the temporary traffic control devices. Construct the devices from material capable of withstanding anticipated weather, traffic conditions, and suitable for the intended use. Do not use units used on other projects without approval.

1.20 EPOXY RESIN ADHESIVES: Epoxy resin adhesives for bonding traffic markers to rigid and asphalt concrete pavements shall conform to AASHTO M237.

1.21 CONCRETE FOR SIGN POSTS PEDESTALS:

Use Class “A” Concrete for sign posts pedestals, with fc ≥4000 psi compressive strength. The contractor shall submit concrete Mix design submittal for COR/CMA review and approval before starting any concrete work. For details on submission process follow Attachment J-2, Section 013300 -

SUBMITTAL PROCEDURES.

Considered below notes as part of the specifications.

Note 1: For any issue in these technical specifications The Contractor shall follow FP-14 standard specifications.

Note 2: Marking color/appearance shall remain the same without any change throughout the project.

- END OF SECTION 340000 -