Vibration
摘要
Vibration refers to the oscillatory motions that can impact the structural integrity and durability of cement and concrete. In the context of construction and civil engineering, vibrations may be induced by traffic, machinery, seismic activity, or construction activities. Vibration affects cement and concrete primarily during the curing process, where it can lead to increased compaction and removal of air voids, theoretically enhancing material density and strength. However, excessive vibration can also cause segregation of the concrete mix, leading to weak points and inhomogeneities within the material. Understanding the amplitude, frequency, and duration of vibration necessary to optimize concrete compaction without inducing damage is crucial, particularly under severe environmental conditions where structures are already under enhanced stress (Popovics 1998).