IS 2514:1963 is the Indian Standard (BIS) for concrete vibrators, vibrating tables - specification. This standard prescribes the requirements for vibrating tables used for the compaction of concrete in laboratories and precast manufacturing. It covers standard dimensions, load capacities, motor specifications, and the mechanical characteristics of the vibrating mechanism.
Specifies requirements for vibrating tables used for compacting concrete specimens or precast units.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Frequency (Internal Vibrator) | Not less than 7000 vibrations per minute | At least 9000 vibrations per minute [150 Hz] | ASTM C31 / C31M - 21 |
| Frequency (Vibrating Table for Specimens) | Not less than 3000 vibrations per minute | 50 Hz ± 5 Hz or 60 Hz ± 5 Hz (3000 or 3600 vpm ± 300 vpm) | BS EN 12390-2:2019 |
| Amplitude (Vibrating Table) | 0.05 mm to 0.5 mm | Performance-based; verified by a sand subsidence test rather than a specified numerical range. | BS EN 12390-2:2019 |
| Internal Vibrator Head Diameter | Specifies standard sizes from 25 mm to 100 mm. | Not specified, but must be at least 20 mm smaller than the mould diameter for test specimens. | ASTM C31 / C31M - 21 |
| Material of Vibrating Head | Shall be of steel, suitably hardened. | Not specified; assumes material is suitable for its intended purpose and durability. | ASTM C31 / BS EN 12390-2 |
| Motor Power Specification | Specifies motor power rating (in HP) based on vibrator head size. | Not specified; focus is on achieving performance outputs (frequency/amplitude). | ASTM C31 / BS EN 12390-2 |