ASTM E1745, “Standard Specification for Plastic Water Vapor Retarders Used in Contact with Soil or Granular Fill under Concrete Slabs,” was originally approved in 1996, and the current ...

First, it must be determined whether or not a vapor retarder is present beneath the slab, and if it was placed correctly (i.e., directly below the concrete slab and above any earthen material).

One significant factor is the ongoing urbanization and infrastructure development, particularly in emerging economies. BEIJING, BEIJING, CH ...