A compass pattern graces the plaza at Mariner's Church. “James Baldwin, with Conceptual Design & Planning Company, is a landscape architect who is well versed in decorative concrete,” says Lance Boyer, president of Trademark Concrete Systems. Baldwin chose integral color, chemical stain, and color hardener as coloring agents and combined them with sand reveal, broom finish, and a boardwalk stamping pattern to carry out the design for the 60,000-square-foot plaza.
The compass is a 30-foot-diameter focal point for the plaza. Its colored sections use Chalk Blue, Antique Rose, and Weathered Sage color hardener by L.M. Scofield. “Instead of the usual broadcast of color hardener by hand, we mixed the color hardener into a plaster and troweled it onto the concrete on the same day concrete was placed,” says Boyer. “This precision placement reduced the pours, increased the quality, and saved us time and dollars.” The finished surface was acid washed to reveal the fine sands in the color-hardened layer.
The main 50,000-square-foot plaza incorporated Desert Sand and Mesa Beige integral color, as well as Colorfull from Admixtures Inc. for a natural-looking slip resistant pavement. Trademark Concrete Systems sprayed Top-cast by Grace Construction Products, top-surface retarder, onto the surface and then scrubbed the surface to reveal the sands in the mix. The sand reveal areas are contrasted with 4-inch bands. Trademark placed a template onto the concrete to mask the bands and protect them from the sandblasting.
The 10,000-square-foot children's play area has a bright look with sections of blue, red, and yellow color hardeners that were broom swept. There is a raised integrally colored pathway in French Gray that was stamped with a boardwalk pattern by Pro-Line, Oceanside, Calif. A “pier ruin” has 24x8-inch walls that are 12 feet long placed in a series. They were heavily distressed and sandblasted to imitate the erosion of a ruin. A path suggests a waterway by combining Scofield's Copper Patina and Antique Amber chemical stains to color the concrete. The variegated color extends from the church plaza to the children's play area.
“Our firm enjoyed a close working relationship throughout the project with the landscape architect James Baldwin. It truly is the key to a successful hardscape installation in a project of such complexity and size,” says Boyer. Chris Cannon, general manager at Trademark, oversaw the details with general contractor Fullmer Construction, Ontario, Calif., which managed the installation.