ミキサー車
A concrete mixer truck is a specialized [[truck]] designed to mix [[concrete]] and transport it to a [[construction site]].  To prevent the concrete from hardening during transport, the large drum carried by the truck consistently rotates to keep the concrete from settling to maintain its liquid state.

h4. External links
* "Wikipedia: Concrete mixer":[https://en.wikipedia.org/wiki/Concrete_mixer]
concrete mixer truck