SECTION 841 —LATEX ADMIXTURE
841.01 DESCRIPTION. This section covers Styrene-Butadiene latex admixtures for
concrete bridge deck overlays.
841.02 GENERAL. Use a certified independent laboratory to conduct annual testing
and evaluation of Styrene-Butadiene latex admixtures as described in the Prequalification Test Program in the U.S. Department of Transportation Research Report No. FHWA-RD-78-35. Submit the certified test results along with a 5-gallon sample of the latex admixture to the Department’s Division of Materi als. Use a latex admixture that is produced in the United States. Use only latex admixtures that are free of chlorides.
841.03 APPROVAL. The Department will approve latex admixtures based upon
conformance of the required independent laboratory data and test results obtained by the Department to the requirements of FHWA-RD-78-35 and this section.. Submit independent laboratory data conducted within one year of the date of product submittal for Department approval. Obtain Department approval for each latex admixture annually. .
841.04 PACKAGING. Package and store the latex admixture in containers and storage
facilities that protect the material from freezing and from temperatures above 85 °F. When storing outside of buildings during moderate temperatures, keep the material shaded and away from direct sunlight. Do not use any latex admixture exposed to freezing temperatures without approval from the Division of Materials.
841.05 CERTIFICATION. Submit manufacturer’s certification stating conformance to
the requirements of this section for each shipment of latex admixture delivered for use on projects. Clearly state the manufacturer, pro duct name, and product code as listed in the Department’s List of Approved Materials. Identify the lot number(s), weight percent solids, pH, surface tension, expiration date, and quantity for each lot of latex admixture delivered.
841.06 ACCEPTANCE. The Department will accept latex admixtures based on
verification of inclusion on the Department’s List of Approved Materials and compliance of the manufacturer’s certification. The Department reserves the right to sample and test latex admixtures, at the discretion of the Engineer, in accordance with the Department’s Field Sampling and Testing Manual. Do not accept latex admixture that has been exposed to freezing temperatures. 841-1 SECTION 842 - PAVEMENT STRIPING PAINT
842.01 DESCRIPTION. This section covers quick-drying waterborne acrylic pavement
striping paint for permanent applications.
842.02 GENERAL. Select waterborne acrylic paint that conforms to the composition
requirements below. Annually provide independent analysis data and certification for each formulation stating the total concentration of each heavy metal present, the test method used for each determination, and compliance to 40 CFR 261 for leachable heavy metals content. Submit initial samples per formulation for approval before beginning striping operations on a yearly basis. The initial sample may be sent from the manufacturer of the paint. PAINT COMPOSITION Property and Test Method Yellow White Daytime Color (CIELAB) Spectrophotometer using illuminant D65 at 45º illumination and 0º viewing with a 2º observer L* 81.76 a* 19.79 b* 89.89 Maximum allowable variation 4.0 ∆E* L* 93.51 a* -1.01 b* 0.70 Maximum allowable variation 4.0 ∆E* Nighttime Color (CIELAB) Spectrophotometer using illuminant A at 45º illumination and 0º viewing with a 2º observer L* 86.90 a* 24.80 b* 95.45 Maximum allowable variation 4.0 ∆E* L* 93.45 a* -0.79 b* 0.43 Maximum allowable variation 4.0 ∆E* Heavy Metals Content Comply with 40 CFR 261 Comply with 40 CFR 261 TiO 2 ASTM D 4764 NA 10% by wt. of pigment min. VOC ASTM D 2369 and D 4017 1.25-lb/gal max. 1.25-lb/gal max. Contrast Ratio (at 15 mils wft.) 0.98 0.99
842.03 MANUFACTURER’S TESTING. Perform testing for Daytime and Nighttime
Color, Contrast Ratio, Titanium Dioxide (white paints) and Volatile Organic Content (VOC) on each lot of waterborne acrylic paint to be delivered for use on projects.
842.04 SAMPLING. The Department will obtain samples of waterborne acrylic paint
for compliance testing to the requirements of this section in accordance with the Department’s Materials Field Sampling Manual.
842.05 CERTIFICATION. Submit manufacturer’s certification stating conformance to
the requirements of this section for each shipment of waterborne acrylic paint delivered for use on projects. Clearly state the manufacture r, product name, product code, lot number(s), expiration date, color, sampling method, test results of manufacturer required testing, and quantity delivered.
842.06 ACCEPTANCE. The Department will accept waterborne acrylic paint based on
compliance of the manufacturer’s certification and conformance of test results obtained by the Department to the requirements of this section.
842.07 Acceptance Procedures for Non-Specification
PAVEMENT STRIPING PAINT. When non-specification paint is inadvertently incorporated into the work the Department will accept the material with a reduction in pay. The percentage deduction is cumulative based on its compositional properties, but will not exceed 60 percent. The Department will calculate the payment reduction on the unit bid 842-1