ACI SPEC-548.9-21 (IN-LB) PDF Download

ACI SPEC-548.9-21 (IN-LB) is a standard that describes the specifications for epoxy slurry (ES) polymer overlay for bridge and parking garage decks. The Type ES overlay is made up of a low-modulus epoxy binder, fillers, and selected aggregate. It is designed to provide a flexible, skid-resistant, and low-permeability surface for both new construction and rehabilitation projects.

According to the specification, the overlay is applied by mixing the epoxy binder and filler and then applying it to the surface. Aggregate is then broadcasted onto the surface to provide texture and additional strength. The standard covers various aspects including the requirements for epoxy resin, fillers, aggregates, storage and handling, surface preparation, surface profile, mixing, placement, quality control, and quality assurance.

This standard ensures that the Type ES polymer overlay meets the necessary criteria for performance and durability. It provides guidelines for the proper application of the overlay to ensure its skid resistance and resistance to water penetration.