Modular Block Retaining Wall Units

摘要

While machine-placed wet-cast precast concrete retaining wall units have been commercially available since the late 1990s, there has not been an ASTM standard available to cover these products. Now, ASTM Inter- national Committee C27 on Precast Concrete Products is working on such a standard. WK38192, Specification for Wet-Cast Precast Modular Block Retaining Wall Units, is being developed by Subcommittee C27.20 on Architectural and Structural Products.