Final answer:
The correct method of consolidation to be used when the slump is less than 1 in. (25 mm) is rodding.
Step-by-step explanation:
The correct method of consolidation to be used when the slump is less than 1 in. (25 mm) is rodding.
Slump refers to the measure of consistency of fresh concrete. It is the amount of vertical settlement that occurs after the concrete is placed and is an indication of how workable the concrete is. Slump is measured in inches or millimeters.
When the slump is less than 1 in. (25 mm), rodding is the preferred method of consolidation. In rodding, a rod is used to penetrate the concrete and remove any trapped air bubbles. This method helps to ensure that the concrete is properly consolidated and free from voids.