Membrane – A topical or film like coating usually over a concrete surface to provide protection and enhance color. Typically clear plastic like acrylic, polyurethane or epoxy.

Membrane Curing - A process that involves either liquid sealing compound (e.g., bituminous and paraffinic emulsions, coal tar cut-backs, pigmented and non-pigmented resin suspensions, or suspensions of wax and drying oil) or non-liquid protective coating (e.g., sheet plastics or "waterproof" paper), both of which types function as films to restrict evaporation of mixing water from the fresh concrete surface.

Mix - The act or process of mixing; also mixture of materials, such as mortar or concrete

Moisture Barrier - A vapor barrier used under concrete to deter moisture vapor transmission migration.

Mortar: Cement paste mixed with sand, but not concrete, absence of large aggregate