air-dried lumber, natural-seasoned lumber
Wood dried by exposure to air under natural conditions; usually has a moisture content not greater than 24%.
Glossary
Glossary
Glossary
air-dry moisture content
The moisture content of a piece of wood after it has been exposed to its environment long enough to attain
Glossary
air-entrained concrete
Concrete made with air-entraining cement or an air-entraining agent. Same as cellular concrete.
Glossary
air-entraining admixture
An admixture that causes the development of air bubbles in concrete or mortar during its mixture.
Glossary
air-entraining agent
An addition for hydraulic cement or an admixture for concrete or mortar which causes air to be incorporated in the
Glossary
air-conditioning system
An assembly of components for the treatment of air, controlling its temperature, humidity, cleanliness, and distribution within an air-conditioned space.