What is the typical duration of vibration needed for adequate concrete consolidation?

The typical duration of vibration needed for adequate concrete consolidation is indeed in the range of 5 to 15 seconds. This timeframe is sufficient to ensure that the concrete mix is properly compacted, allowing for the removal of air bubbles and the achievement of a dense and uniform material. Consistent vibration within this duration helps to eliminate voids and improves the bonding between the aggregates and the cement paste, ultimately enhancing the overall strength and durability of the concrete.

Vibrating for too short a duration may not adequately consolidate the concrete, while excessive vibration beyond this range can lead to issues such as segregation of the materials or damage to the concrete structure. Therefore, adhering to a vibration duration of 5 to 15 seconds strikes a balance that allows for effective consolidation without incurring negative consequences.