Article 1 — Description
Furnish and place colored textured concrete.
Article 2 — Materials
Furnish materials in accordance with the following. Item 420, “Concrete Substructures” Item 421, “Hydraulic Cement Concrete” Item 440, “Reinforcement for Concrete” Use Class A concrete unless otherwise shown on the plans. When approved, use fibers listed on the Department’s MPL or fibers meeting the requirements of DMS -4550 , “Fibers for Concrete,” to replace reinforcing steel in Class A concrete. Use dry -shake color hardener or integral concrete colorant unless otherwise specified on the plans . Ensure integral color, if used, meets the requirements of ASTM C979. Provide colored wax as a curing membrane meeting the requirements of ASTM C309 or as shown on the plans.
Article 3 — Construction
Prepare for approval a 9-sq. ft., 3- in. thick specimen for each color, pattern, and texture required before beginni ng work. Prepare the subgrade, base, or both as shown on the plans and in conformance with pertinent Items. Place and screed concrete to the proper grade and wood- float to a uniform surface in accordance with Item 420. When dry -shake color hardener is used, a pply evenly to the plastic surface in conformance with the manufacturer’s directions. Use at least 65 lb. per 12 sq. yd. Apply in two separate applications , and wood- float after each application. Trowel only after the final floating. Place dies with a repetitive pattern on the concrete surface, and hand- tamp to create the required texture or imprint shown on the plans. Apply colored curing and finishing compound in conformance with the manufacturer’s directions . If no type, size, color, or pattern is sp ecified , use a brick shape with a minimum size of 3- 3/4 in. long and 7- 3/4 in. wide with 3 /8-in. joints a nd a red color using a running bond pattern.
Article 4 — Measurement
This Item will be measured by the square yard.
Article 5 — Payment
Excavation and embankment will be paid for separately unles s otherwise shown on the plans. The work performed and measured as provided under “Measurement” will be paid for at the unit price bid for “Colored Textured Concrete” of the thickness specified. This price is full compensation for surface preparation of subgrade and base; furnishing, placing, finishing, and curing colored, textured concrete; and equipment, 803 labor, materials, tools, and incidentals. Preparation of approval specimens will not be paid for directly but will be subsidiary to this Item. Base under colored textured concrete will be paid for under pertinent Items unless otherwise shown on the plans