ACI 548.8-19 PDF Download

ACI 548.8-19 is a standard that defines the specifications for Type EM (Epoxy Multi-Layer) polymer overlay for bridge and parking garage decks. This type of overlay is made up of a low-modulus epoxy binder and carefully selected aggregate to create a flexible, skid-resistant, and low-permeability surface. It is suitable for both new construction projects and the rehabilitation of existing structures. The application process involves applying the neat epoxy binder onto the surface and then broadcasting the aggregate onto it.

The standard covers various aspects of the epoxy multi-layer polymer overlay, including requirements for the epoxy resin and aggregates used, guidelines for storage and handling, instructions for surface preparation and achieving the desired surface profile, and protocols for mixing, placement, quality control, and quality assurance. This ensures that the overlay is of high quality and meets the necessary performance criteria for bridge and parking garage decks.