Section 712 — Joint Material

712.01Sealants, Fillers, and Seals. Conform to the following:

(a)Joint sealants and crack fillers.

(1)Joint and crack sealant, hot -applied, for concrete and asphalt concrete pavements ASTM D6690, Type II or Type III

(2)Crack filler, hot -applied, for concrete and asphalt concrete pavements ASTM D5078

(3)Proprietary asphalt -rubber products, provide the following:

(a)Source and grade of asphalt binder;

(b)Total quantity of granul ated rubber and mass as a percent of asphalt -rubber mixture;

(c)Granulated rubber types and quantity of each type (if blend);

(1)Mass as a percent of combined rubber; and

(2)Gradation of granulated rubber.

(d)Type of asphalt modifier, if any;

(e)Quantity of asphalt modifier and mass as a percent of asphalt binder;

(f)Other additives;

(g)Heating and application temperatures; and

(h)Manufacturer’s recommended application procedures.

(4)Elastomeric joint sealant ASTM C920, Type M, Grade P, Class 25, use T 1 or T 2

(5)Flexible cellular joint filler ASTM D1056, Type 2, Class B or Class C, Grades 3, 4, or 5

(b)Preformed expansion joint fillers. Provide in a single piece for the depth and width required f or the joint.

(1)Preformed expansion joint filler for concrete (bituminous type) AASHTO M 33

(2)Preformed sponge rubber expansion joint filler for concrete paving and structural construction AASHTO M 153, Type I 818 (3) Preformed cork expansion joint filler for concrete paving and structural construction AASHTO M 153

(4)Performed expansion joint filler for concrete paving and structural construction (non- extruding and resilient bituminous types)AASHTO M 213

(c)Preformed polychloroprene elastomeric joint seal for concrete pavements. Conform to ASTM D2628. Use a lubricant conforming to ASTM D2835, which was manufactured within 9 months of use.

(d)Cold -applied, single component, chemically curing silicone joint sealant for concrete pavement (non-sag). Conform to ASTM D5893, Type NS.

(e)Cold -applied, single component, chemically curing silicone joint sealant for concrete pavement (self -leveling). Conform to ASTM D5893, Type SL.

(f)Backer rod. Conform to ASTM D5249, Type 1. Use a compatible sealant as recommended by the rod manufacturer. For size of backer rod, conform to Table 712-2. Table 712-2

Backer Rod Sizes

Joint Width After Preparation , inch Rod Diameter , inch 5⁄16 ⅜ ⅜ ½ ½ ⅝ ⅝ ¾ ¾ 1 1 1¼ 1¼ 1½ 1½ 2

(g)Preformed polychloroprene elastomeric joint seal for bridges. Conform to AASHTO M 297. Use an adhesive lubricant conforming to ASTM D4070. (h) Pre-compressed foam -supported silicone joint seal.

(i)Provide a joint system comprised of the following:

(1)Cellular polyurethane foam impregnated with hydrophobic 100 percent acrylic, water -based emulsion, factory coated with highway- grade, fuel resistant silicone conforming to Table 712-3.

(2)Field -applied epoxy adhesive primer conforming to Table 712-4.

(3)Field -injected silicone sealant bands conforming to Table 712-5. Table 712-3

Impregnated Foam Requirements

Property Test Method Minimum Requirement Base material – Cellular, high density, polyurethane foam Tensile strength ASTM D3574 18 psi UV and moisture resistance ASTM G155 No changes - 2000 hours, Pass Density ASTM D545 4 lb./cu. ft. Elongation ASTM D3574 125% Temperature service range ASTM C711 -40 to 185 °F Table 712-4

Epoxy Adhesive Requirements

Property Test Method Minimum Requirement Tensile strength ASTM D638 3500 psi Shear strength ASTM D732 3000 psi Bond strength ASTM D882 2500 psi Compressive strength ASTM D695 8000 psi Table 712-5

Silicone Sealant Bands Requirements

Property Test Method Requirement

Color Visual Black

Movement capability ASTM C719 ±50% Elongation ASTM D412 > 600% Tensile strength ASTM D412 ≥ 100 psi

(j)Asphaltic plug joints. Conform to ASTM D6297 except for Table 1 recommended application heating range.