air gun
1. Same as spray gun. 2. See shotcrete gun.
Glossary
Glossary
air hammer, pneumatic hammer
A portable tool, driven percussively by air pressure, into which is set a chisel, hammer, or the like.
Glossary
air entraining
Descriptive of the capability of a material or process to develop a system of minute bubbles of air in cement
Glossary
air entrainment
The occlusion of air in the form of tiny bubbles (generally smaller than 1 mm) during the mixing of concrete