General
Stampcrete System is cast-in-place concrete, integrally colored and stamped with U.S. patented/texturing tools to produce a surface similar to natural stone, brick, slate and other natural paving materials. Base color is achieved through integral color pigments in the concrete mix or surface treated with color hardeners. A powdered color release agent is used in the stamping process and insures maximum surface detail while providing a second color for surface highlights and distinctive grout line look. Stampcrete's special acrylic base sealer added in the curing process provides full color depth and richness with maximum concrete protection.

Guidelines
Highly trained ACI Stampcrete contractors perform all work. All work shall meet ASTM C 94 and ACI 332 requirements for placement of concrete surfaces. This includes sub-grade preparation and forming concrete. Concrete arrives on site with the Stampcrete integral color added (one pail per yard) together with the Stampcrete reinforcing fibers (thoroughly mixed). The concrete is then poured into forms at a thickness of 4-6 inches, screeded, bull floated, and edged before applying clear or colored release agent to the surface. Release agent is applied evenly over the entire surface before stamping. While in the plastic state, stamping commences using stamp molds and tampers to achieve the desired texture. When the concrete is set, excess release agent is washed off and control cuts (1/3 the thickness of the slab) are made in the surface at. When the surface is dry, 2 coats of Stampcrete clear (gloss or matte) acrylic sealer is applied to protect the surface from fading, staining and the elements.

Concrete Mix Designs
In freeze-thaw areas, the concrete mix design shall be a minimum 4,000 psi (29mpa). Compressive strength shall achieve 4,000 psi at 28 days +. Portland Cement shall meet the requirements of ASTM-C 150. Cement content shall be 611 lbs./yd., 1 yard fiber/yd, one 12 lb. pail integral color/yd. Slump is equal to 4" + 1", maximum water-cement ratio shall be .44 by weight. Coarse aggregate shall be accordance with ASTM-C 33 size 3/4" minus aggregate, air-entrainment 7%.
In non-freeze areas, the concrete mix design shall be a minimum 3,500 psi, compressive strength shall be 3,500 psi at 28 days +. Portland Cement shall meet the requirements of ASTM-C 150. Cement content shall be 470 lbs./yd., 1 yard fiber/yd, one 12 lb. pail integral color/yd. Slump is equal to 4" + 1", maximum water-cement ratio shall be .44 by weight. Coarse aggregate shall be accordance with ASTM-C 33 size 3/4" minus aggregate, air-entrainment 7%