concrete vibrator
- noun
- /ˈkɒn.kriːt ˈvaɪ.breɪ.tər/
- Specialized
:
vibrador de concreto
- Proper use of a concrete vibrator helps prevent weak spots in the finished structure.
Examples
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The contractor used a concrete vibrator to ensure the slab was level.
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The workers used a concrete vibrator to ensure the foundation was free of air pockets.
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After pouring the concrete, the crew operated the concrete vibrator along the formwork.
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A concrete vibrator helps remove air bubbles from the mixture.
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The contractor used a concrete vibrator to ensure that the freshly poured cement was smooth and free of air bubbles.
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To achieve a solid finish, he relied on a concrete vibrator while pouring the foundation for the building.
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After pouring the concrete, she employed a concrete vibrator to enhance the mixture's density and eliminate any trapped air.
How Powerful
- Specialized
- Specialized
Surface Forms
Morphology
concrete + vibrator
The noun-noun compound is fully compositional: 'concrete' names the material and 'vibrator' denotes a device that vibrates, so the combined meaning 'a device that vibrates concrete to consolidate it' is directly derivable. This instrument-noun pattern is common cross-linguistically, so a B1 learner who knows both constituents would understand the MWE (despite 'vibrator' having other specialized senses in different contexts).
Etymology
Concrete vibrator is a tool named for what it does: the vibrator makes the concrete shake so trapped air and extra water escape. That's why it means 'a machine used to make fresh concrete firm and free of air pockets'.
