SPECIFICATIONS:
1 .00 GENERAL
1.04 Related Work
a. Preparation work, including sub-grade preparation, finish grading, constructing formwork, placing and setting screeds, and placement of reinforcement shall be done by a qualified contractor.
b. Provide and place concrete.
c. Provide and apply all QC COLOR HARDENER. Regular grade color hardener is recommended for all application areas except those subject to heavy pedestrian traffic or heavy vehicular traffic.
d. Provide and apply all QC RELEASE POWDER. Release Powder is a dry powdered, colored agent used to facilitate release of the imprinting tools from the concrete surface and to provide moderate color variations to the textured surface.

2.00 PRODUCTS AND MATERIALS
2.01 Concrete Mix Design
a. The concrete shall have a minimum compressive strength of 3,000 psi in non-freeze areas, 3,500 psi in moderate freeze-thaw areas and 4,000 psi in severe freeze-thaw areas. Portland cement shall conform to ASTM C 150 Type I, II, or V, depending on soil conditions. Aggregates shall conform to ASTM C 33. Mixing water shall be fresh, clean and potable. In freeze-thaw areas only, an air-entraining admixture complying to ASTM C 260 shall be used to achieve an entrained air content for the particular mix used in accordance with the published recommendations of the Portland Cement Association and the American Concrete Institute. No admixtures containing calcium chloride shall be permitted.
2.02 Coloring, Imprinting, Curing and Sealing Materials
a. QC COLOR HARDENER: The concrete shall be colored with the following QC COLOR HARDENER COLOR(S): ______________. The grade of the hardener shall be: (choose one) Regular Grade or Heavy Duty Grade
b. QC RELEASE POWDER: The following QC RELEASE POWDER COLOR(S) shall be applied to all concrete surfaces to be imprinted and textured: ______________.
c. QC SEALERS: The following QC SEALER(S) shall be applied to all concrete surfaces to be imprinted and textured: ______________.

3.00 EXECUTION
3.01 Installation Procedures
a. The area to receive imprinted concrete shall have the sub-grade prepared as required as for any concrete slab on grade.
b. The formwork shall be installed in accordance with the drawings. The slab thickness shall be consistent with that of ordinary concrete slabs under the same conditions.
c. Provide reinforcement as specified.
d. Control joints and/or expansion joints shall be provided in accordance with the drawings and the guidelines established by the American Concrete Institute. As with any concrete slab, imprinted concrete usually contains construction joints, control joints, and expansion joints. The contractor shall advise and work with the architect/engineer to determine the best location for these joints to minimize the visibility of the joints and to minimize unsightly cracking.
e. The concrete shall be placed and screeded to the finished grade and floated to a uniform surface using standard finishing techniques.
f. QC COLOR HARDENER shall be applied evenly to the surface of the fresh concrete by the dry-shake method using a minimum of 60 pounds per 100 square feet (27 kilograms per 9 square meters). Lighter colors and commercial/industrial applications may require heavier application rates. Consult the QC COLOR HARDENER Product Information Bulletin for coverage guidelines. It shall be applied in two or more shakes, floated after each shake and troweled only after the final floating.
g. (Optional) QC RELEASE POWDER shall be applied evenly to the troweled surface prior to imprinting.
h. All imprinted surfaces shall be sealed with a QC SEALER, depending on the architectural specifications and application. Consult the QC SEALERS AND STRIPPERS Product Information Bulletin for complete information.

QC RELEASE POWDER is warranted to be of uniform quality within manufacturing tolerances. Since control is not exercised over its use, no warranty expressed or implied, is made as to the effects of such use. Seller’s and manufacturer’s obligation under this warranty shall be limited to refunding the purchase price of that portion of the material proven to be defective. QC Construction Products, Madera, California.

MADERA, CA

5M499