809.10.3 1 General
1 Provide and use an Aliphatic Acrylic Polyurethane paint intended for use as a field applied topcoat.
809.10.3 2 Properties
1 Provide and use paint having properties in accordance with Table 809.10.3.2-1 Properties of Aliphatic Acrylic Polyurethane Topcoat. Table 809.10.3.2.-1 Properties of Aliphatic Acrylic Polyurethane Topcoat Property Value Density Viscosity Pigment content Dry to touch Dry hard VOC Color Varies by color 75 – 110 KU Varies by color 120 minutes, max. 8 hours, max. 375 g/l, max. < 2 delta E from Federal Color Standard 595 color specified in Table 809.1-1, Paint Color Standards SECTION 810 Concrete Repair 810.1 Concrete Patching Material 810.1.1 General 1 Ensure aggregate extension in accordance with the manufacturer’s recommendations; use aggregate in accordance with Table 810.1.1-1, Extension Aggregate Gradation Requirements. Table 810.1.1-1 Extension Aggregate Gradation Requirements Sieve Size Percent Passing ⅜ in [9.50 mm] No. 8 [2.36 mm] 810.1.2 Horizontal Repair Material Provide and use a concrete repair product preapproved by the Materials Program or equivalent nonchloride, nonvapor barrier, high-alumina cementitious mortar in accordance with ASTM C-928-99a and Table 810.1.2-1, Horizontal Repair Material. Property Compressive Strength Final Set Freeze/Thaw Resistance Drying Shrinkage Table 810.1.2-1 Horizontal Repair Material Test Neat Material ASTM C 109 ASTM C 666 ASTM C 596 Value 5000 psi [35 MPa] in 24 hours 8000 psi [55 MPa] in 28 days 25 minutes, min. 96% min. @ 300 cycles 0.13% max. @ 4 days With Maximum Aggregate Extension Compressive Strength Bond Strength ASTM C 39 4000 psi [28 MPa] in 24 hours 7000 psi [48 MPa] in 28 days ASTM C 882 Modified 2000 psi [14 MPa] in 24 hours 810.1.3 Vertical/Overhead Repair Material Provide and use a concrete repair product preapproved by the Materials Program or equivalent nonchloride, nonvapor barrier, high-alumina cementitious mortar designed for vertical and overhead applications in accordance with ASTM C-928-99a and Table 810.1.3-1, Vertical/Overhead Repair Material. Concrete Repair Property