Exposed aggregate panels

Because they are relatively expensive, epoxy polymers have not been used very widely as binders in PC products. Therefore, epoxy PC is used for special applications, in situations in which the higher cost can easily be justified, such as mortar for industrial flooring to provide physical and chemical resistance, skid-resistant overlays (filled with sand, emery, pumice, quartz) in highways, epoxy plaster for exterior walls (e.g., in exposed aggregate panels), and resurfacing material for deteriorated areas (e.g., in flooring). Epoxy PC reinforced with glass, carbon, or boron fibers is used in the fabrication of translucent panels, boat hulls, and automobile bodies [2,6],... 

In recent years, epoxy resin systems have been utilized for special applications on the exteriors of buildings. One of these systems involves the use of an epoxy plaster, which is troweled onto the surface of an exposed wall, into which are set stone aggregates. This surfacing resembles a pre-cast concrete panel with an exposed aggregate facing. This method is utilized, not only in new construction, but in re-surfacing deteriorated areas. 

Pre-cast concrete has achieved a recognized position in the construction industry. Quite often, it is necessary to provide a decorative surface to these panels. Ti common method is to produce an exposed aggregate finish. Many architects now specify concrete panels having a veneer of marble, granite, limestone or other decorative natural stone. These veneers are applied in sections no thicker than 3/4 inch. Epoxy adhesives are used to bond the concrete to the veneer. 

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