Floors/flooring concrete joint fillers

The foundation is to meet the requirements of AWWA D103. The top of the foundation shall be a minimum of 6 in (150 mm) above the finished grade, unless specified otherwise by the purchaser. Tanks that require anchor bolts shall be supported on a concrete ringwall or slab. Where steel floor sits directly on concrete, tank pad (1/2-in-thick cane-fiber joint filler to ASTM D1751) shall be supplied by tank manufacturer. The tank foimdation shall be select one) ... 

Many years ago, expansion joints in concrete floors were frequently filled with hot asphalt, and it was sometimes used as a space filler in void areas to prevent fluid penetration. Neither of these applications is recommended. If extruded by the two sides of a closing joint, when the structure expands in hot weather, it stays extruded when the weather cools off, and the structure shrinks back to its old size, leaving a void to be filled with rainwater, etc. (which can freeze causing expansion damage) or with chemicals which can attack the concrete. 

If there is no membrane under the joint, as in an expansion joint in a tile floor laid directly over a crack in the concrete slab, the deformable sealant will adhere to the bottom as well as the sides of the joint. If this happens, the deformable material will not function properly. The joint cannot open without pulling the filler off the sides of the joint at the bottom, or close without tearing it loose at the bottom and top of the joint. 

The REZKLAD epoxy-based system consists of a Concrete Primer and Flooring Compound, plus an Expansion Joint Compound and Surface Sealer available for use where necessary. The CLADKOTE Flooring Compound is a modified polyester, resin-based monolithic overlay for concrete. The composite of resins and siliceous reinforcing material cures to a tough, chemical resistant topping. CLADKOTE C utilizes a 100% carbon filler specifically designed for service in hydrofluoric acid and fluoride salts. 

---