Traffic Bead Specifications and Requirements.doc

State of Nevada

Steve Sisolak Department of Administration

Governor

Purchasing Division

515 E. Musser St., Room 300

Kevin D. Doty Carson City, NV 89701

Administrator

THE NEVADA STATE PURCHASING DIVISION IS SOLICITING BIDS FOR

A ONE YEAR OPEN TERM CONTRACT FOR GLASS BEADS FOR WATERBORNE TRAFFIC PAINT

INVITATION TO BID NO. 80DOT-S852

F.O.B. Department of Transportation, Statewide

Release Date:

Requisition No. Open Term Contract Company Name: ____________________________________________________________________

Contact Name: _________________________________________ Delivery (days ARO) ____________________________________ Payment Terms _______________

(The delivery information and payment terms above must also be entered into NevadaEPro. Failure to provide the information will cause the default delivery to be 15 days and payment terms of Net 45)

No "All or None" bids will be considered in making awards. Minimum orders, for the entire bid, will be considered. State minimum order required, $_____________, if applicable.

PROJECT OVERVIEW TC "1. PROJECT OVERVIEW" \f C \l "1" The purpose of this solicitation is to obtain competitive pricing for glass traffic beads for use with waterborne traffic paint. This solicitation is requesting FOB destination pricing to locations as indicated; freight pricing must be incorporated into unit price. Award may be made to multiple vendors. Price increases will not be allowed during term of the contract period. Contract period shall be from date of award through August 31, 2020 with the option of up to three one (1) year extensions provided the extension is in the best interest of the State.

ITEM SPECIFICATIONS TC "3. ITEM SPECIFICATIONS" \f C \l "1"

Specifications for Traffic Beads for Waterborne Traffic Paints

1.

Scope This specification covers glass beads to be gravity dropped upon 8-25 mils (1.4-4.4 M2/L, 57-179 ft2/gal) of waterborne traffic paint. These beads shall be applied at a rate of 0.67-1.33 Kg/L or (9-12 lb/gal) of traffic paint.

2.

Applicable Documents:

2.1 The following documents, of the issue as stated on date of invitation to bid or request for proposal, form a part of this specification to the extent specified herein:

2.1.1 Federal Specifications

TT-B-1325 - Beads (Glass Spheres) Retro reflective

2.1.2 Nevada Specifications Nevada Department of Transportation Standard Specifications for Road and Bridge Construction 2014 Edition or latest Edition and applicable Pull Sheets.

2.2 Other Publications - The following documents form a part of this description to the extent specified herein. Unless a specific issue is identified, the issue in effect on date for invitation for bids or request for proposal shall apply.

2.2.1 American Society for Testing and Materials (ASTM) Standards:

D 1155 - Standard Test Method for Roundness of Glass Spheres

D 1214 - Standard Test Method for Sieve Analysis of Glass Spheres

3. Requirements:

3.1

Quality Assurance Control:

The beads shall be segregated into maximum lots of 20,000 Kg (44,000 lb). The manufacturer shall test each lot for compliance to the specification requirements listed in Table II, entitled ‘Test Methods”. Lot analysis shall be retained for at least two (2) years.

3.2 Appearance:

When tested as specified in Paragraph 4.3, the glass spheres shall be colorless; clean; transparent; free from milkiness or excessive air bubbles; and essentially clean from surface scarring or scratching.

3.3 Roundness:

When tested as specified in Paragraph 4.4, the traffic beads shall have a minimum of eighty percent (80%) rounds overall.

3.4 Embedment Coating:

When tested as specified in Paragraph 4.5, the traffic beads shall be embedment coated with a material, which enhances adherence of these beads in the waterborne traffic paint.

3.5 Specific Gravity:

When tested as specified in Paragraph 4.6, the traffic beads shall have a specific gravity of two and forty-four one-hundredths (2.44) to two and fifty-six one hundredths (2.56) at twenty-five degrees Centigrade (25°C) (seventy-seven degrees Fahrenheit (77°F)).

3.6 Visual Requirements:

3.6.1 Referee Method:

When tested as specified in Paragraph 4.3, the glass beads shall have a minimum of eighty percent (80%) rounds and shall satisfy the specification requirements described in Paragraph 3.2 - Appearance.

3.6.2 Alternate Method:

When tested as specified in Paragraph 4.4, the traffic beads shall comply with the specification requirements described in Paragraph 3.3 Roundness.

3.7 Moisture Content

When tested as specified in Paragraph 4.7 the moisture content shall not exceed one one-hundredth percent (0.01%).

3.8

Moisture Resistance:

When tested as specified in Paragraph 4.8, the traffic beads shall flow freely with minimal resistance.

3.9 Refractive Index:

When tested as specified in Paragraph 4.9, the Index of Refraction shall be a minimum of one and five-tenths (1.5).

3.10 Reduction in Luster or `Reflective Power

When tested as specified in Paragraph 4.10, the reduction in luster or reflective power of the beads shall be minimal.

3.11 Gradation:

When tested as specified in Paragraph 4.11, the traffic beads delivered shall comply with the gradation requirements specified in Table I, entitled “Gradation Requirements for Type A Traffic Beads.”

Table I

Gradation Requirements for Type A Traffic Beads

US Standard Sieve Size:

No.

Size of Openings Percent Retained (In) (μm) (By Mass)

0.0331 850 3-10

0.0234 600 20-40

0.0175 450 30-50

0.0117 300 15-35

0.0070 180 0-10

Pan

0-2

3.12 Health and Environmental:

Provide certified independent laboratory test results verifying the glass used for traffic beads do not contain heavy metals in excess of two hundred parts per million (200 ppm) of Arsenic (As) or Lead (Pb), determined in accordance with Environmental Protection Agency (EPA) Test Methods 3052, 6010B, or 6010C.

Provide certified laboratory test results for every fifty thousand pounds (50,000 lbs.) of glass beads or portion thereof.

Provide a unique numbering system to identify each batch of beads and related test results. Submit test results with each load of glass beads delivered to Nevada Department of Transportation (NDOT) District locations.

3.13 Delivery:

All deliveries shall be on a solidly constructed 42-inch x 42-inch Winged Pallet able to withstand the load. Load packaging (see below) shall be centered upon pallet. All deliveries shall be by flatbed truck only.

3.14 Glass Bead Packaging:

When product delivery requirements call for “supersacks”, delivery shall be in 38-inch x 38-inch bag constructed of 220 GSM coated polypropylene, UV treated fabric with internal baffles of 220 GSM coated fabric. Each bag shall be equipped with 4/2-inch x 10-inch polypropylene lifting loops, one at each corner with loops sewn from top to bottom of main seam. All seams shall be perimeter banded and sift-proofed with 2-sided filler cord. Inlet spout shall be 20-inch diameter with web tie. Outlet spout shall be 10-inch diameter, iris style outer closure with web tie.

4.

Methods of Sampling and Testing:

4.1 Sample Collection Procedures

NEVADA DEPARTMENT OF TRANSPORTATION (“The Department”) shall randomly sample each lot of beads upon delivery. One 3-lb sample per lot shall be taken and delivered to the Progress Laboratory in the District or to the Headquarters Laboratory in Carson City, Nevada for testing. The beads shall not be used until tested. Any lot that fails any of the testing procedures will be returned to the Manufacturer at no cost to “The Department.” “The Department” reserves the right to have an inspector present to observe the manufacturing process. “The Department” reserves the right to require manufacturer’s reports of batches delivered to field locations.

4.2 Test Methods:

Samples shall be tested as specified in Table II, entitled “Test Methods.” Unless otherwise specified, tests shall be performed at standard conditions, which are twenty-five degrees with two degrees Centigrade tolerance (25°C ± 2°C) (seventy-seven degrees Fahrenheit with nine degrees Fahrenheit tolerance (77°F ± 9°F) and fifty percent Relative Humidity with five percent tolerance (50% ± 5% Relative Humidity). Test results shall be evaluated for conformance to specification requirements. Traffic Beads represented by the sample shall be unacceptable if any test result does not conform to the corresponding requirement in Section 3.

TABLE II - TEST METHODS

Paragraph

ASTM

Method Test Paragraph

4.3 Appearance

Pour some of the sample remaining after splitting for Sieve Analysis – Gradation (Paragraph 4.10) on a strip of transparent tape. Place the bead-laden tape under a Microfiche Reader. Count the number of Traffic Beads in ten (10) fractions for a total of one hundred (100) beads counted. Count the number of traffic beads in each 10-bead fraction that failed to meet specification requirements for roundness; color; transparency; that are milky; contain excessive air bubbles; surface scarring or scratching; and angular particles. Subtract the traffic beads which failed to meet specification requirements from the total traffic beads counted. Record this number as the percentage of traffic beads meeting Visual Requirements.

4.4

Roundness:

Beads shall be tested using ASTM D 1155 or an approved equal.

4.5 Embedment Coating:

The traffic beads shall be tested for embedment coating by any approved method using Dansyl Chloride.

4.6 Specific Gravity:

Dry one hundred grams (100.000 g) of traffic beads in an oven at one hundred five degrees Centigrade with two degrees Centigrade tolerance (105°C ± 2°C) (two hundred twenty-one degrees Fahrenheit with seven degrees Fahrenheit tolerance (221°F ± 7°F)). Cool the sample in a dessicator. Reheat the sample for one Hour (1 Hr.) in the oven, cool in a desiccator and reweigh. Repeat the heating and cooling of the sample until constant weight is achieved. Constant weight is achieved when the difference of two (2) successive weightings differ by less than 10 milligrams (10 mg (0.010 g)). Weigh a sixty-gram (60.000-g) test sample from the original one hundred-gram (100-g) sample cooled to constant weight in a desiccator. Slowly pour the test sample into a one hundred-milliliter (100-mL) graduated cylinder containing fifty milliliters (50 mL) of reagent-grade Xylene. Make certain that air is not entrapped among the beads.

Calculate the Specific Gravity as follows:

Specific Gravity = M/(V-50)

M = Mass of Sample

V = Total Volume (Xylene Level after Addition)

Evaluate for Compliance With Paragraph 3.5.

4.7 Moisture Content:

The moisture content shall not exceed one one-hundredth (0.01) percent when tested at one hundred five degrees Centigrade (105°C) (two hundred twenty-one degrees Fahrenheit (221°F)) for 3 hours.

4.8 Moisture Resistance:

Test for moisture resistance by placing 900 g (2 lb.) of beads in reserved in an unbleached, washed cotton bag approximately 260 mm by 430 mm (10" by 17") (thread count 48 by 48, per 25 mm( 2” by 2", per 1"). Then immerse the sample in distilled water at room temperature ((21°-22°C) (70°-72°F)) for 30 seconds or until the spheres are completely covered. Then remove the sample and remove excess water by twisting the neck of the bag. After 2 hours, with the bag suspended at room temperature, thoroughly mix the sample and transfer it to a clean, dry funnel (150 mm top diameter), 120 mm depth to 10 mm stem inside diameter). The entire sample shall flow through the funnel with light tapping of the stem permissible only to initiate flow.

4.9

Refractive Index:

The beads shall be tested by the liquid immersion method (Becke Line Method or an approved equal) at a temperature of twenty-five degrees Centigrade with five degrees Centigrade tolerance (25°C ± 5 (seventy-seven degrees Fahrenheit with a nine degrees Fahrenheit tolerance (77°F ± 9°F)).

4.10 Reduction in Luster or Reflective Power:

After refluxing a fifty-gram (50-gm) sample of beads in a Soxhlet Extractor for eight (8) hours with distilled water the reduction in luster or reflective power of the beads shall be minimal.

4.11 Gradation:

Gradation shall be tested according to ASTM D 1214 or an approved equal.

4.12 Health and Environmental:

Provide certified independent laboratory test results in accordance with Section 3.12.

5.

Traffic Bead Deliveries: Traffic Beads to be delivered to the following locations in 1800 or 2400-pound bags. Size and type of delivery bags will be specified at time of order. Provide delivery bags according to the requirements of each location. Contact the Department Maintenance staff at each location to determine the type of delivery bag required. Delivery bags known as “supersacks” may be required that can be hoisted by forklift with top and bottom closures, as delineated in Section 3.14, to allow deposition of beads in storage containers by gravity feed, vacuum transfer or other method. Packaging will not be accepted that leads to spillage or aeration of the beads during transfer process. Quantities specified are estimates only for bid purposes, actual quantities may vary by type and not all types specified may be ordered.

District I: LAS VEGAS Nevada Department of Transportation

6610 Ullom Drive Las Vegas, NV 89118 Quantity

In

Unit

Extended

DESCRIPTION Pounds Packaging

Price Amount

District I: PANACA MAINTENANCE STATION

SR 319 LINCOLN COUNTY M.P. - 51.61

Nevada Department of Transportation

DESCRIPTION

Pounds Packaging

Price

Amount

District I: TONOPAH Nevada Department of Transportation

805 Erie Main

Tonopah, NV 89049

Pounds Packaging

Price

Amount

District II:

RENO

Nevada Department of Transportation

310 Galletti Way

Sparks, NV 89431

Packaging

District III: ELKO

1951 Idaho Street

Elko, NV 89801

Packaging

District III: ELY

1401 Avenue F

Ely, NV 89301

Packaging

Price Amount

District III: AUSTIN MAINTENACE STATION

@ The Jct. of US 50 & SR 305, LA, MP 31.00

Austin, NV 89310

Packaging

Price Amount

District III: EUREKA MAINTENACE STATION

On US 50, EU, MP 36.75

Eureka, NV 89316

Packaging

Price Amount

District III: WINNEMUCCA

725 Fourth Street

Winnemucca, NV 89446

Packaging

Price Amount

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