2214 - EPOXY PAVEMENT MARKING MATERIAL 2200-21
2214.1 Description
This specification covers epoxy resin and glass bead s suitable for use as reflective pavement markings on portland cement concrete or asphalt pavement.
2214.2 Requirements
a. Epoxy Pavement Marking Material.
1.General. Provide an epoxy resin material that is toxic heavy metal free, 2-component, 100% solids, and is formulated and tested to perform as a pavement marking material with glass beads a pplied to the surface. The 2 components are an epoxy resin and an amine curing agent. Provide complete manufacturer's specifications and material safety data sheets to the Engineer for all material provided. Provide a material that does not exude toxic fumes when heated to application temperature. Provide a material that, when mixed in the proper ra tio and applied at 0.02 inch wet film thickness at 75ºF with the proper saturation of glass beads, has a no tracking time of less than 40 minutes for slow curing material and less than 10 minutes for rapid curing material. Provide a material that is capable of fully curing under a constant surface temperature of 32ºF or above.
2.Properties of Cured Material.
a.Color. Provide material that complies with the requirements of ASTM D 6628. Provide white and yellow material that complies with the following Daylight Reflectance values: TABLE 2214-1 DAYLIGHT REFLECTANCE Color 45 Degrees-0 Degrees, % Min. White 75 Yellow 45
b.Retroreflectivity. Provide epoxy pavement marking material that meets the following minimum retroreflectivity requirements using an acceptable 30-meter retroreflectometer: TABLE 2214-3: EPOXY RETROREFLECTIVITY REQUIREMENTS Color millicandelas/sq m/lux (min.) White 325 Yellow 250
c.Hardness. Provide material with Shore D hardness of 75 minimum.
d.Bond Strength to Concrete. Provide material that when catalyzed, has such a high degree of adhesion to the specified concrete surface that there is a 100% concrete failure. Apply the material at a film thickness of 0.01 ± 0.001 inch to concrete with a minimum compressive strength of 4000 psi. Allow the material to cure for 72 hours at 77ºF before the test is performed.
e.Yellowness Index. White only. Value after 72 hours in QUV – 30 maximum when tested at 0.01 ± 0.001 inch and a 72-hour cure. b. Glass Beads For Drop-On Application (double drop system). Provide glass beads according to the epoxy manufacturer’s recommendations.
2214.3 Test Methods
a. Bond Strength to Concrete. AASHTO T 237 b. Hardness. ASTM D 2240 2214 - EPOXY PAVEMENT MARKING MATERIAL 2200-22 c. Yellowness Index. ASTM E 313
2214.4 Prequalification
a. Manufacturers interested in prequalifying material under this specification must provide a 1-quart sample of each color plus 1 quart of hardener to the Engineer of Tests. Also include a copy of the quality control test report for each lot of material, an infrared spectroscopy analysis for each component, material safety data sheets and a complete set of installation recommendations and instructions. . b. The material will be evaluated for compliance wi th all requirements of this specification, and the manufacturer will be notified of the results. Each color an d the hardener will be analyzed and “fingerprinted” using infrared spectroscopy for use in screening future verification samples to verify that materials submitted for use are of an identical formulation as originally approved. c. If the material complies with all laboratory requirements, the manufacturer will be contacted to arrange for the field evaluation. The field evaluation will consist of 2 or 3 test projects at times and locations as determined by the Bureau of Transportation Safety and Technology. Manufacturers must specify if the material may be used on both asphalt and concrete surfaces or only on asphalt or concrete surfaces. Duration of the test project will be dependent on the submittal of test data from the AASHTO National Transportation Product Evaluation Program (NTPEP). Forward an official copy of the test data along with evidence that the material referenced is identical to that submitted for prequalification to the Engineer of Tests for evaluation. Materials with no test data will have a test project duration of 18 months; materials with test data will have a test project duration of 12 months. Materials will be evaluate d initially and every 3 to 6 months throughout the duration of the test project for retroreflectivity, color and durability. d. The Bureau of Construction and Materials will maintain a list of qualified materials and installation instructions. Products will remain on the prequalified list as long as the results of verification testing and field performance are satisfactory. Any changes in formulation should be reported to the Engineer of Tests for review and evaluation to determine if requalification is necessary.
2214.5 Basis of Acceptance
a. Epoxy Material.
1.Prequalification as required by subsection 2214.4.
2.Receipt and approval of a Type C certification as specified in DIVISION 2600. b. Glass Beads for Drop-on Application.
1.Receipt and approval of a Type D certification as specified in DIVISION 2600.
2.Copies of testing results for each lot of beads used on the project.
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Source: Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 925–926 of 978. View official source ↗