Landscaping License Practice Test

Which of the following describes an appropriate compaction method for concrete pavers?

1. Brushing and leveling

2. Soaking and drying

3. Vibrating and compacting

4. Filling and spreading

The correct answer is: Vibrating and compacting

Vibrating and compacting is the appropriate compaction method for concrete pavers because this technique ensures that the pavers are securely set into the base material, creating a stable and durable surface. The application of vibration helps settle the pavers into the bedding sand and eliminates any air pockets, thereby preventing future shifting or settling. This level of compaction is essential to achieve optimal load-bearing capacity and provides a finished product that can withstand traffic and environmental conditions without breaking down. In contrast, brushing and leveling focuses primarily on the surface appearance rather than the foundational stability that compaction provides. Soaking and drying does not contribute to the necessary mechanical stability of pavers; instead, it could lead to problems such as erosion of the base if the bed saturates. Filling and spreading does not offer the mechanical interlock needed for the pavers to function effectively; it may involve leveling materials but lacks the vigorous settling that comes from proper vibrating and compacting.