Concrete mixers carry concrete. This is a material used to build roads, bridges, and tall buildings. The vehicle pours out the concrete. Workers use tools to make the concrete smooth and even.
Sometimes concrete needs to go in hard-to-reach places. Then concrete mixers work with concrete pump trucks. The mixer pours wet concrete down its chute. The concrete goes into the pump truck. The pump truck sucks the concrete up. It lifts the concrete through many tubes. It pours the concrete out far away.
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Have you ever seen a concrete mixer? Where did you see it? What was it doing?
Have you read about another construction truck? How is it similar to a concrete mixer? How is it different?
People use concrete to build many things. What other materials do people use for building?
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