
River Stone and Glass Aggregate Create a Polished Concrete River
The article details the intricate process undertaken by Rosebud Concrete to create a unique river-themed polished concrete floor for a residential client's home, known as The River Lodge on the Susquehanna. This 1,940-square-foot residence, located in central Pennsylvania, aimed for a distinctive design that mimicked a dry riverbed winding through its main corridors. The homeowner, a jewelry designer, actively participated in the design, desiring the incorporation of hand-picked river rock, much of which was sourced from her own property, alongside glass aggregate.
The project presented several challenges due to the specific design requirements and site conditions. A primary hurdle involved the hand-placement of large exposed river stone and 1-inch glass aggregate to form the riverbed. This delicate process had to be executed in the home’s main entrance, extending into the kitchen and living room areas, before any interior walls were constructed. The remote location of the home and a hot, sunny day during concrete placement further complicated operations, requiring rapid execution by the crew to prevent premature setting of the concrete.
Prior to concrete arrival, precise planning was crucial. The Rosebud Concrete team meticulously measured and marked the future locations of walls and doorways using string lines. This provided a foundational map for the intricate hand-seeding of the river stone and glass aggregate. On placement day, the first floor, built on insulated decking, necessitated the use of an overhead pump for the specialized river gravel mix. Due to the concrete setting quickly, crew members immediately placed the decorative aggregates after screeding, utilizing knee boards and a suspended planking system, followed by standard bull floating and troweling.
The polishing process was phased over two mobilizations. Initially, the crew performed the first cut and early grinding of the concrete before the interior walls were erected, after which the floors were protected for the remainder of the home's construction. Upon the near completion of the house, Rosebud Concrete returned to achieve a 3,000-grit polish, integrating a brown dye and densifier at appropriate stages. The outcome was a highly satisfied customer and the home achieved LEED Gold certification, marking it as the first in Dauphin County, Pa.
Key products and equipment utilized in this project included HTC Professional Floor Systems for grinders, abrasives, and vacuums; Xtreme Polishing Systems for densifier, guard, and sealer; and Solomon Colors for integral color. James Peachy, sales/estimator for Rosebud Concrete, elaborated on the project, highlighting the company's expertise in both traditional and decorative concrete work.
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