Patent ID: 8381483
Filing Date: 2013-02-26
Classification: C04B,E04G

Abstract:
1. A method of applying a terrazzo finish to the concrete surface of an existing concrete structure comprising the steps of: treating the concrete surface of the concrete body by physical means to expose a clean virgin concrete surface; filling the exposed open crevices on the surface of the concrete body substantially level with the clean virgin concrete surface with a concrete crack filler; applying a first coating of primer over the clean virgin concrete surface; applying a cementitious mortar topping over the first coating when the first coating is tacky to form a mortar topping layer; screeding the mortar topping layer to form a mortar topping layer of relatively uniform thickness; seeding decorative aggregate on the screeded mortar topping layer before its hardens to form a seeded mortar topping layer; troweling the surface of the seeded mortar topping layer to embed the decorative aggregate in the mortar topping layer to form a aggregate/mortar topping layer with the pre-terrazzo surface; providing joints through the aggregate/mortar topping layer contiguous with the existing joints in the concrete body; allowing the aggregate/mortar topping layer to set up to form a cured aggregate/mortar topping layer; and finishing the pre-terrazzo surface to form a terrazzo finish on the cured aggregate/mortar topping layer.